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中兴通讯电源产品技术经理培训教材本部事业部电源系统部二00二年四月目录第一章中兴电源产品部简介 (1)一、中兴通讯电源产品部发展概括 (1)二、中兴通信电源产品种类 (2)第二章通信电源基础知识 (6)第一讲通信电源发展概况 (6)一、通信电源的现状和发展趋势 (6)二、通信设备对电源系统的一般要求 (9)第二讲组合通信电源系统结构及功能 (10)第三章中兴通信电源产品特色 (15)第一讲中兴整流器技术 (15)一、工作基本原理 (15)二、中兴整流器技术特点 (16)第二讲中兴组合电源系统特点 (18)可靠的三级防雷网络 (19)自下而上全分布式的三级监控网络 (20)完善的蓄电池管理 (22)灵活多样的组网方式 (22)第三讲组网方式 (23)第四章中兴组合通信电源产品系列介绍 (27)第一讲ZXD5000 100A整流模块及其组成的电源系统 (27)一、ZXD5000 100A整流模块介绍 (27)二、ZXDU3000、ZXDU1500通讯电源系统简介 (29)第二讲ZXD2400 50A整流模块及其组成的电源系统 (32)一、ZXD2400 50A整流模块介绍 (33)二、ZXDU600E、ZXDU400通讯电源系统简介 (34)第三讲ZXD1500 30A整流模块及其组成的电源系统 (37)一、ZXD1500 30A整流模块介绍 (37)二、ZXDU300（2米高机柜）ZXDU300(1.6米高机柜) 通讯电源系统简介 (39)第四讲ZXD800E 15A整流模块及其组成的电源系统 (41)一、ZXD800E 15A整流模块介绍 (41)二、ZXDU150、ZXDU75、ZXDU45通讯电源系统简介 (43)第五讲＋24V组合通信电源系统 (46)第五章中兴UPS产品介绍 (47)ZXUPS S501 (47)ZXUPS S502 (48)ZXUPS S503 (48)ZXUPS S506 (48)ZXUPS S510 (49)ZXUPS M510 (49)ZXUPS M515 (49)ZXUPS M520 (50)ZXUPS M530 (50)ZXUPS L005 (50)ZXUPS L006 (50)第六章通信电源计算配置方法 (52)第七章通信电源市场概述 (55)第一讲国内主要通信电源厂家及其产品特色 (55)一、华为公司 (55)公司背景 (55)产品系列 (56)产品技术特点 (56)我司对策 (57)二、武汉洲际通信电源集团有限公司 (57)公司背景 (57)产品特点 (57)我司对策 (58)三、中达-斯米克电器电子有限公司 (58)公司背景 (58)产品系列 (58)与我司技术优、劣势对比 (59)我司对策 (59)四、珠江电信设备制造有限公司 (59)公司背景 (59)产品系列 (59)产品技术特点 (60)五、新西兰SWITCHTEC公司 (60)公司简介 (60)产品介绍 (60)我司对策 (61)六、亚澳通信电源有限公司 (61)公司概况 (61)产品技术特点简介 (62)我司对策 (62)七、动力源责任有限公司 (63)公司背景 (63)产品介绍 (63)产品优、劣势分析 (64)我司对策 (64)八、通力环电气有限公司 (65)公司背景 (65)产品系列 (65)产品特点 (66)九、意达公司 (67)产品系列 (67)产品技术特点 (68)第二讲我司电源产品市场拓展策略 (68)一、市场分类 (68)二、不同市场拓展策略 (69)三、2002年我司电源产品市场拓展策略 (70)第八章推荐参考书籍清单 (75)第一章中兴电源产品部简介导读：这一章主要介绍了中兴电源产品部的发展概况和现有的产品系列，是本教材的入门篇，各产品系列是本章掌握重点，同时关于产品部的发展、近几年的销售业绩等情况也经常用于客户交流中。

1FeaturesInputs/Outputs •Accepts differential or single-ended input •LVPECL, LVDS, CML, HCSL, LVCMOS •On-chip input termination resistors and biasing for AC coupled inputs•Six precision LVPECL outputs •Operating frequency up to 750 MHzPower •Options for 2.5 V or 3.3 V power supply •Core current consumption of 110 mA•On-chip Low Drop Out (LDO) Regulator for superior power supply rejectionPerformance •Ultra low additive jitter of 36 fs RMSApplications•General purpose clock distribution •Low jitter clock trees •Logic translation•Clock and data signal restoration•Wired communications: OTN, SONET/SDH, GE,10 GE, FC and 10G FC•PCI Express generation 1/2/3 clock distribution •Wireless communications•High performance microprocessor clock distributionApril 2014Figure 1 - Functional Block DiagramZL40205Precision 1:6 LVPECL Fanout Bufferwith On-Chip Input TerminationData SheetOrdering InformationZL40205LDG1 32 Pin QFN TraysZL40205LDF132 Pin QFNTape and ReelMatte TinPackage Size: 5 x 5 mm-40o C to +85o CTable of ContentsFeatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Inputs/Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Change Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41.0 Package Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52.0 Pin Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63.0 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73.1 Clock Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73.2 Clock Outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123.3 Device Additive Jitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153.4 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163.4.1 Sensitivity to power supply noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163.4.2 Power supply filtering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163.4.3 PCB layout considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164.0 AC and DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175.0 Performance Characterization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206.0 Typical Behavior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .217.0 Package Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238.0 Mechanical Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24List of FiguresFigure 1 - Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 - Pin Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 3 - Simplified Diagram of Input Stage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Figure 4 - Clock Input - LVPECL - DC Coupled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 5 - Clock Input - LVPECL - AC Coupled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Figure 6 - Clock Input - LVDS - DC Coupled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 7 - Clock Input - LVDS - AC Coupled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 8 - Clock Input - CML- AC Coupled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 9 - Clock Input - HCSL- AC Coupled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 10 - Clock Input - AC-coupled Single-Ended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 11 - Clock Input - DC-coupled 3.3V CMOS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Figure 12 - Simplified Output Driver. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 13 - LVPECL Basic Output Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 14 - LVPECL Parallel Output Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 15 - LVPECL Parallel Thevenin-Equivalent Output Termination. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Figure 16 - LVPECL AC Output Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 17 - LVPECL AC Output Termination for CML Inputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 18 - Additive Jitter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Figure 19 - Decoupling Connections for Power Pins. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Figure 20 - Differential and Single-Ended Output Voltages Parameter Definitions . . . . . . . . . . . . . . . . . . . . . . . . 18 Figure 21 - Input To Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Change SummaryPage Item Change1Applications Added PCI Express clock distribution.6Pin Description Added exposed pad to Pin Description.8Figure 4 and Figure 5Removed 22 ohm series resistors from Figure 4 and 5. These resistor are not required; however there is no impact to performance if the resistors are included.16Power supply filtering 18Figure 20Clarification of V ID and V OD .Below are the changes from the February 2013 issue to the April 2014 issue:Page Item Change8Figure 4Changed text to indicate the circuit is not recommended for VDD_driver=2.5V.Below are the changes from the November 2012 issue to the February 2013 issue:Corrected typo of 0.3 Ohm to 0.15 Ohm.1.0 Package DescriptionThe device is packaged in a 32 pin QFNFigure 2 - Pin Connections2.0 Pin DescriptionPin # Name Description3, 6clk_p, clk_n,Differential Input (Analog Input). Differential (or single ended) input signals.For all input configurations see “Clock Inputs” on page 728, 27, 26, 25, 24, 23, 18, 17, 16, 15, 14, 13out0_p, out0_nout1_p, out1_nout2_p, out2_nout3_p, out3_nout4_p, out4_nout5_p, out5_nDifferential Output (Analog Output). Differential outputs.9, 19,22, 32vdd Positive Supply Voltage. 2.5 V DC or 3.3 V DC nominal.1, 8vdd_core Positive Supply Voltage. 2.5 V DC or 3.3 V DC nominal.2, 7,20, 21gnd Ground. 0 V.4vt On-Chip Input Termination Node (Analog). Center tap between internal 50 Ohmtermination resistors.The use of this pin is detailed in section 3.1, “Clock Inputs“, for various input signal types.5ctrl Digital Control for On-Chip Input Termination (Input). Selects differential input mode;0: DC coupled LVPECL or LVDS modes1: AC coupled differential modesThis pin are internally pulled down to GND. The use of this pin is detailed in section 3.1,“Clock Inputs“, for various input signal types.10, 11,12, 29,30, 31NC No Connection. Leave unconnected.Exposed Pad Device GND.3.0 Functional DescriptionThe ZL40205 is an LVPECL clock fan out buffer with six output clock drivers capable of operating at frequencies up to 750MHz.The ZL40205 provides an internal input termination network for DC and AC coupled inputs; optional input biasing for AC coupled inputs is also provided. The ZL40205 can accept DC or AC coupled LVPECL and LVDS input signals, AC coupled CML or HCSL input signals, and single ended signals. A pin compatible device with external termination is also available.The ZL40205 is designed to fan out low-jitter reference clocks for wired or optical communications applications while adding minimal jitter to the clock signal. An internal linear power supply regulator and bulk capacitors minimize additive jitter due to power supply noise. The device operates from 2.5V+/-5% or 3.3V+/-5% supply. Its operation is guaranteed over the industrial temperature range -40°C to +85°C.The device block diagram is shown in Figure 1; its operation is described in the following sections.3.1 Clock InputsThe device has a differential input equipped with two on-chip 50 Ohm termination resistors arranged in series with a center tap. The input can accept many differential and single-ended signals with AC or DC coupling as appropriate. A control pin is available to enable internal biasing for AC coupled inputs. A block diagram of the input stage is in Figure 3.Receiverclk_n 50clk_pVt 50BiasctrlFigure 3 - Simplified Diagram of Input StageThis following figures give the components values and configuration for the various circuits compatible with the input stage and the use of the Vt and ctrl pins in each case.In the following diagrams where the ctrl pin is logically one and the Vt pin is not connected, the Vt pin can be instead connected to VDD with a capacitor. A capacitor can also help in Figure 4 between Vt and VDD. This capacitor will minimize the noise at the point between the two internal termination resistors and improve the overall performance of the device.Figure 4 - Clock Input - LVPECL - DC CoupledFigure 5 - Clock Input - LVPECL - AC CoupledFigure 6 - Clock Input - LVDS - DC CoupledFigure 7 - Clock Input - LVDS - AC CoupledFigure 8 - Clock Input - CML- AC CoupledFigure 9 - Clock Input - HCSL- AC CoupledFigure 10 - Clock Input - AC-coupled Single-EndedFigure 11 - Clock Input - DC-coupled 3.3V CMOS3.2 Clock OutputsLVPECL has a very low output impedance and a differential signal swing between 1V and 1.6 V. A simplified diagram for the output stage is shown in Figure 12.The LVPECL to LVDS output termination is not shown since there is a different device with the same inputs and LVDS outputs.out_pout_nFigure 12 - Simplified Output DriverThe methods to terminate the ZL40205 LVPECL drivers are shown in the following figures.Figure 15 - LVPECL Parallel Thevenin-Equivalent Output TerminationFigure 16 - LVPECL AC Output TerminationFigure 17 - LVPECL AC Output Termination for CML Inputs3.3 Device Additive JitterThe ZL40205 clock fanout buffer is not intended to filter clock jitter. The jitter performance of this type of device is characterized by its additive jitter. Additive jitter is the jitter the device would add to a hypothetical jitter-free clock as it passes through the device. The additive jitter of the ZL40205 is random and as such it is not correlated to the jitter of the input clock signal.The square of the resultant random RMS jitter at the output of the ZL40205 is equal to the sum of the squares of the various random RMS jitter sources including: input clock jitter; additive jitter of the buffer; and additive random jitter due to power supply noise. There may be additional deterministic jitter sources, but they are not shown in Figure 18.Figure 18 - Additive Jitter3.4 Power SupplyThis device operates employing either a 2.5V supply or 3.3V supply.3.4.1 Sensitivity to power supply noisePower supply noise from sources such as switching power supplies and high-power digital components such as FPGAs can induce additive jitter on clock buffer outputs. The ZL40205 is equipped with a low drop out (LDO) regulator and on-chip bulk capacitors to minimize additive jitter due to power supply noise. The on-chip regulation, recommended power supply filtering, and good PCB layout all work together to minimize the additive jitter from power supply noise.3.4.2 Power supply filteringJitter levels may increase when noise is present on the power pins. For optimal jitter performance, the device should be isolated from the power planes connected to its power supply pins as shown in Figure 19. •10 µF capacitors should be size 0603 or size 0805 X5R or X7R ceramic, 6.3 V minimum rating •0.1 µF capacitors should be size 0402 X5R ceramic, 6.3 V minimum rating •Capacitors should be placed next to the connected device power pins •A 0.15 Ohm resistor is recommended3.4.3 PCB layout considerationsThe power nets in Figure 19 can be implemented either as a plane island or routed power topology without changing the overall jitter performance of the device.ZL402051891922320.1 µF 0.1 µFvdd_core10 µF 0.1 µF0.15 Ωvdd0.1 µF 10 µFFigure 19 - Decoupling Connections for Power PinsAbsolute Maximum Ratings*Parameter Sym.Min.Max.Units 1Supply voltage V DD_R-0.5 4.6V 2Voltage on any digital pin V PIN-0.5VDD V 4LVPECL output current I out30mA 5Soldering temperature T260 °C 6Storage temperature T ST-55125 °C 7Junction temperature T j125 °C 8Voltage on input pin V input VDD V 9Input capacitance each pin C p500fF 4.0 AC and DC Electrical Characteristics* Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.* Voltages are with respect to ground (GND) unless otherwise statedRecommended Operating Conditions*Characteristics Sym.Min.Typ.Max.Units1Supply voltage 2.5 V mode V DD25 2.375 2.5 2.625V2Supply voltage 3.3 V mode V DD33 3.135 3.3 3.465V3Operating temperature T A-402585°C* Voltages are with respect to ground (GND) unless otherwise statedDC Electrical Characteristics - Current ConsumptionCharacteristics Sym.Min.Typ.Max.Units Notes 1Supply current LVPECL drivers -unloadedI dd_unload110mA Unloaded2Supply current LVPECL drivers - loaded (all outputs are active)I dd_load209mA Including powerto R L = 50DC Electrical Characteristics - Inputs and Outputs - for 3.3 V SupplyCharacteristics Sym.Min.Typ.Max.Units Notes1CMOS control logic high-level inputvoltageV CIH0.7*V DD V2CMOS control logic low-level inputvoltageV CIL0.3*V DD V3CMOS control logic Input leakagecurrentI IL1µA V I = V DD or 0 V4Differential input common modevoltageV CM 1.1 2.0V5Differential input voltage difference V ID0.251V6Differential input resistance V IR80100120ohm* This parameter was measured from 125 MHz to 750 MHz.* This parameter was measured from 125 MHz to 750 MHz.Figure 20 - Differential and Single-Ended Output Voltages Parameter Definitions7LVPECL output high voltage V OH V DD -1.40V 8LVPECL output low voltage V OL V DD - 1.62V 9LVPECL output differential voltage*V OD0.50.9VDC Electrical Characteristics - Inputs and Outputs - for 2.5 V SupplyCharacteristicsSym.Min.Typ.Max.Units Notes1Differential input common mode voltageV CM 1.1 1.6V 2Differential input voltage difference V ID 0.251V 3Differential input resistance V IR 80100120ohm 4LVPECL output high voltage V OH V DD -1.40V 5LVPECL output low voltage V OL V DD - 1.62V 6LVPECL output differential voltage*V OD0.40.9VDC Electrical Characteristics - Inputs and Outputs - for 3.3 V SupplyCharacteristicsSym.Min.Typ.Max.Units NotesAC Electrical Characteristics* - Inputs and Outputs (see Figure 21) - for 2.5/3.3 V supply.Characteristics Sym.Min.Typ.Max.Units Notes 1Maximum Operating Frequency1/t p750MHz2Input to output clock propagation delay t pd012ns3Output to output skew t out2out50100ps4Part to part output skew t part2part80300ps5Output clock Duty Cycle degradation t PWH/ t PWL-202Percent6LVPECL Output clock slew rate r SL0.75 1.2V/ns* Supply voltage and operating temperature are as per Recommended Operating ConditionsInputt Pt PWL t pdt PWHOutputFigure 21 - Input To Output TimingAdditive Jitter at 2.5 V*Output Frequency (MHz)Jitter MeasurementFilterTypical RMS (fs)Notes112512 kHz - 20 MHz 1392212.512 kHz - 20 MHz 1093311.0412 kHz - 20 MHz 85442512 kHz - 20 MHz 57550012 kHz - 20 MHz 506622.0812 kHz - 20 MHz 40775012 kHz - 20 MHz36Additive Jitter at 3.3 V*Output Frequency (MHz)Jitter MeasurementFilterTypical RMS (fs)Notes112512 kHz - 20 MHz 1152212.512 kHz - 20 MHz 853311.0412 kHz - 20 MHz 72442512 kHz - 20 MHz 55550012 kHz - 20 MHz 486622.0812 kHz - 20 MHz 41775012 kHz - 20 MHz395.0 Performance Characterization*The values in this table were taken with an approximate slew rate of 0.8 V/ns.*The values in this table were taken with an approximate slew rate of 0.8 V/ns.Additive Jitter from a Power Supply Tone*Carrier frequencyParameterTypicalUnitsNotes125MHz 25 mV at 100 kHz 115fs RMS 750MHz25 mV at 100 kHz59fs RMS* The values in this table are the additive periodic jitter caused by an interfering tone typically caused by a switching power supply. For this test, measurements were taken over the full temperature and voltage range for V DD = 2.5 V. The magnitude of the interfering tone is measured at the DUT.6.0 Typical BehaviorTypical Phase Noise at 622.08 MHzTypical Waveformat 155.52 MHzV OD versus FrequencyPropagation Delay versus TemperatureNote:This is for a single device. For more details see thePower Supply Tone Frequency (at 25 mV) versus PSRR at 125 MHz Power Supply Tone Frequency (at 25 mV) versus Additive Jitter at 125 MHzPower Supply Tone Magnitude (at 100 kHz) versus PSRR at 125 MHz Power Supply Tone Magnitude (at 100 kHz) versus Additive Jitter at 125 MHz7.0 Package CharacteristicsThermal DataParameter Symbol Test Condition Value UnitJunction to Ambient Thermal Resistance ΘJA Still Air1 m/s2 m/s 37.433.131.5o C/WJunction to Case Thermal Resistance ΘJC24.4o C/W Junction to Board Thermal Resistance ΘJB19.5o C/W Maximum Junction Temperature*T jmax125o C Maximum Ambient Temperature T A85o C© 2014 Microsemi Corporation. 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microchip数字电源方案数字电源方案是一种通过数字控制和管理电源输出的技术，它在现代电子设备中发挥着重要作用。

在数字电源方案中，微芯片（Microchip）公司是一家全球领先的提供数字电源芯片和解决方案的厂商。

本文将介绍Microchip数字电源方案的特点、应用以及未来的发展趋势。

一、Microchip 数字电源方案的特点Microchip的数字电源方案具有以下特点：1. 高度集成：Microchip的数字电源芯片集成了多种功能，如 DC-DC 转换器、PWM 控制器、锁相环、电流传感器等，能够实现高效率的功率转换和精确的电源管理。

这种高度集成的设计大大简化了电源系统的设计和布局，提高了系统的可靠性和性能。

2. 高性能：Microchip的数字电源方案采用先进的控制算法和优化的电源管理策略，能够精确地调节电压和电流输出，并提供高效率的能量转换。

这些特性使得数字电源方案适用于广泛的应用领域，如工业自动化、通信设备、汽车电子等。

3. 灵活可配置：Microchip的数字电源芯片具有灵活的配置和编程能力，能够适应不同的电源系统要求。

用户可以通过软件调整输入输出参数、控制模式和保护功能，以实现最佳的电源管理效果。

这种灵活性和可配置性使得数字电源方案能够满足不同应用的需求，提供定制化的解决方案。

4. 高度可靠：Microchip的数字电源芯片经过严格的质量控制和可靠性测试，具有高度的可靠性和稳定性。

这种可靠性保证了电源系统在长时间运行和恶劣环境下的稳定性能，为设备的可靠运行提供了保障。

二、Microchip 数字电源方案的应用Microchip的数字电源方案广泛应用于各种电子设备和应用领域，包括但不限于以下几个方面：1. 工业自动化：在工业自动化系统中，数字电源方案能够提供高效、稳定的电源供应，满足工业设备对电能质量和可靠性的要求。

例如，在机器人控制系统中，数字电源方案能够实现对电机驱动器的精确控制，提高机器人的运动性能和精度。

SISTEMA DI CONTROLLO MICROControllo scalabile grazie alla semplicità diconnessione di tutti i vostri dispositivi intelligentiSoluzione di automazione integrata per la produzione intelligenteMentre le esigenze del settore e i requisiti delle applicazioni sono in continua evoluzione, noi sfruttiamo i progressi tecnologici per migliorarecontinuamente il nostro sistema di controllo Micro con funzionalità più avanzate. Il nostro sistema di controllo Micro è specificamente progettato per offrire una soluzione conveniente e personalizzabile per macchine indipendenti di grandi dimensioni. Infatti consente di ridurre i tempi di sviluppo e di migliorare la produttività grazie alla connessione di rete semplificata e all’utilizzo di un solo software di programmazione.Per ottenere questo risultato si avvale di microcontrollori, azionamenti, pannelli operatore, dispositivi di sicurezza, controllo assi e software di progettazione integrato.Semplificate lo sviluppo delle vostre macchine intelligentiOttimizzazione delle prestazioni con i prodotti giusti•Sfruttate la flessibilità dei controllori Micro800™, personalizzabili con i moduli plug-in e i moduli I/O di espansione •Riducete al minimo i tempi di fermo macchina con il monitoraggio daremoto, utilizzando i pannelli operatore PanelView™ 800 e un server Virtual Network Computing (VNC)•Ottimizzate lo spazio nel pannello esemplificate le operazioni di installazione e configurazione con i convertitori di frequenza modulari PowerFlex®Accelerazione dei tempi di commercia-lizzazione delle macchine grazie a un solo software di programmazione• Riducete i tempi di sviluppo utilizzando lo stesso software Connected Components Workbench™ per programmazione esimulazione del controllore, configurazione del dispositivo e integrazione con l’e ditor di interfaccia operatore (HMI)• Semplificate la programmazione utilizzan -do lo strumento di conversione con Logix Theme e copiando/incollando il codice condiviso con il software applicativo • Risparmiate tempo grazie a una maggiore velocità di trasmissione dati e al riferimen-to diretto delle variabili Micro800 durante la creazione dei tag di interfaccia operato-reConsegnate le vostre macchine in tutto il mondo• Prodotti conformi agli standard internazionali più recenti • Software in versione multilingue: inglese, francese, tedesco, spagnolo internazionale, italiano, portoghese, e cinese semplificato • Rockwell Automation fornisce supporto globale attraverso i vostri distributori di zona oppure direttamente presso i punti vendita Rockwell AutomationMacchine più intelligenti con il sistema di controllo Micro Le tecnologie si stanno evolvendo a un ritmo senza precedenti. Ecco perché alle aziendeservono macchine intelligenti, flessibili e ad alte prestazioni, integrate nello stabilimento.Infatti per mantenere il vantaggio sulla concorrenza è fondamentale trovare strategie perridurre costi e tempi di commercializzazione e rimanere al passo con la tecnologia.Grazie alla sua architettura personalizzabile, dai costi ottimizzati e facile da usare, il sistemadi controllo Micro di Rockwell Automation® consente di adeguare l’agilità aziendale alleesigenze di un mercato in costante evoluzione. Questo innovativo sistema di controlloautomatizzato, fornito insieme agli strumenti di progettazione necessari, supporta la vostramacchina in ogni fase del ciclo di vita per ridurre i costi di progettazione, sviluppo, consegnae interazione con i clienti.Imballaggio Movimentazione Converting e stampaSkid di processo EnergiaCostruzione e assemblaggioControllori Micro800Controllore Micro820®Controllore Micro810®Iniziate con soluzioni intelligenti. Abilitate la connettività cloud nei controllori Micro800 Guardate ora.Controllore Micro850®Controllore Micro870®Prodotti per il sistema di controllo MicroControllore Micro830®ServoazionamentiKinetix 5100 e servomotoriTL e TLYProgettazione semplificata delle mac-chine e tempi di commercializzazionepiù rapidi con possibilità di asservimen-to scalabile in un solo prodottoCon i servoazionamenti Kinetix® 5100 ei servomotori Kinetix TL e TLY gli utentipossono personalizzare gli assi delle loromacchine in base ai requisiti di potenzaeffettivi, riducendo al minimo dimensioni ecosti di sistema. Questi servoazionamenti eservomotori offrono inoltre maggiore facilitàdi configurazione, avvio e messa in serviziograzie alla possibilità di standardizzazione suuna rete di comunicazione.PowerFlex 523PowerFlex 525Pannelli operatorePanelView 800Ottimizzati per la compatibilità con icontrollori Micro800 e la connettivitàcon i controllori CompactLogix™ 5370L1, L2, L3; CompactLogix e CompactGuardLogix® 5380 L306xI pannelli operatore PanelView 800 sonocaratterizzati da un compatto designsalvaspazio, con processore ad alta velocitàe display touchscreen ad alta risoluzione con65K colori. Questi pannelli operatore offronouna soluzione di controllo e visualizzazionedalle prestazioni elevate per la scalabilità trai sistemi di controllo Allen-Bradley piccoli emicro, con funzioni di monitoraggio remoto.Convertitori di frequenzaPowerFlexRiduzione dei tempi di ingegnerizzazio-ne e manutenzione grazie alla sempli-cità di configurazione e alla facilità diprogrammazioneI convertitori di frequenza PowerFlex sonola soluzione di controllo motori semplice econveniente per applicazioni di macchineindipendenti o per l’integrazione nei sistemi.La struttura compatta e modulare di questiconvertitori di frequenza per usi genericiconsente di ottimizzare lo spazio nelpannello e la versatilità applicativa. Inoltresemplificano la configurazione e riducono itempi di programmazione grazie a strumentie pacchetti software facili da usare.Per saperne di piùServoazionamentiKinetix 5100ServomotoriKinetix TL e TLYBarriera fotoelettrica di sicurezza GuardShield POCDisponibili con CIP Safety™ su EtherNet/IP™, le barrierefotoelettriche di sicurezza GuardShield™ 450L Allen-Bradley consentono un’integrazione ottimale del controllo di sicurezza nella vostra architetturaProgettate per migliorare produttività ed efficienza, le barriere fotoelettriche di sicurezza GuardShield POC sono dotate di tecnologia brevettata per l’utilizzo di ogni ricetrasmettitore come trasmettitore o come ricevitore grazie all’innovativo modulo plug-in. Il modello 450L -B rappresenta la versione di base con funzionalità on/off, mentre l’avanzato modello 450L -E amplia queste caratteristiche fino a comprendere l’allineamento laser integrato e il collegamento in cascata. Le barriere fotoelettriche di sicurezza sono facilmente configurabili con i microinterruttori dei moduli plug-in dedicati.Relè di sicurezza programmabile Guardmaster 440C-CR30Ideale per applicazioni che richiedono fino a dieci circuitidi sicurezza a doppio canale e controllano fino a cinque zone di uscita.Il relè di sicurezza programmabile Guardmaster® 440C-CR30 è flessibile, conveniente e facile da utilizzare, oltre a offrire rapidità di configurazione grazie ai blocchi funzione di sicurezza certificati. L ’integrazione completa con i controllori Micro800 consente di configurare il relè per i controlli standard e di sicurezza in un solo ambiente software, utilizzando Connected Components Workbench. L ’opzionale modulo plug-in su EtherNet/IP può condividere le informazioni con il sistema di controllo per aumentare i tempi di disponibilità.Per saperne di piùPer saperne di piùSemplificate lo sviluppo di macchine indipendentiCome software di progettazione integrato per sistemi di controllo Micro, Connected Components Workbench offre funzioni di programmazione e simulazione dei controllori, configurazione dei dispositivi e integrazione con l’editor di interfaccia operatore (HMI), riducendo così tempi e costi di sviluppo iniziale delle macchine.PanoramicaSoftwareConnected Components WorkbenchSoftware Connected Components Workbench• Programmate nel vostro ambiente preferito cambiando i nomi delle istruzioni tra temi IEC predefiniti e temi Logix• Riducete i tempi di programmazione del controllore Micro800 inserendo e modificando rapidamente i rung in ladder tramite flussi di lavoro simili a quelli delle applicazioni RSLogix 500® e Studio 5000 Logix Designer®• Eseguite la ricerca e l’aggiunta di istruzioni con la massima facilità utilizzando la barra delle istruzioni• Riducete i tempi di sviluppo utilizzandola funzione copia/incolla per condividerelo stesso codice nel software Connected Components Workbench e nell’applicazione Studio 5000 Logix Designer• Semplificate la configurazione con opzioni di comunicazione estese tramite l’interfaccia utente per connettività DNP3 e DF1 facile da usare Maggiore efficienza di programmazione• Tempi di sviluppo inferiori grazie a un unico software per la configurazione di piùe applicazioni tramite lo strumento di conversione e la funzione copia/incollaProgrammazioneSimulazioneConfigurazioneVisualizzazioneRisorseSfruttate l’ampia scelta di tutorial, guide pratiche e strumenti self-serviceper semplificare lo sviluppo della vostra macchina indipendente.Per saperne di più sul nostro sistema di controllo MicroOttimizzate la produttività con i prodotti giustiAggiornate i vostri controllori passando da MicroLogix™ a Micro800Selezionate i componenti giusti attraverso la Guida alla selezione dei componenti fondamentaliPersonalizzate il vostro sistema di controllo con i controllori Micro800Visualizzate con i pannelli operatore PanelView 800Semplificate la configurazione grazie ai convertitori di frequenza PowerFlex serie 520Rendete scalabile il vostro controllo di movimento con i servoazionamenti Kinetix 5100 e i servomotori TL e TLY Riducete i tempi di progettazione utilizzando la Guida al software Connected Components Workbenchper utenti di Studio 5000 Logix DesignerSfruttate gli strumenti che supportano la vostra applicazioneLibreria di codici di esempioIntegrated Architecture® BuilderSemplificate la progettazione con l’aiuto di questi videoProgrammazione dei controllori Micro800, alla pagina rok.auto/micro800videosProgettazione con il software Connected Components Workbench, alla pagina rok.auto/ccwvideosConfigurazione dei pannelli operatore PanelView 800, alla pagina rok.auto/pv800videosScoprite i componenti fondamentali per la sicurezzaINDIETROContattaci suAllen-Bradley, CompactLogix, Connected Components Workbench, expanding human possibility, FactoryTalk, GuardLogix, Guardmaster, GuardShield,Integrated Architecture, Kinetix, Micro800, Micro810, Micro820, Micro830, Micro850, Micro870, MicroLogix, PanelView, PowerFlex, Rockwell Automation,RSLogix 500, Studio 5000 Logix Designer, e TechConnect sono marchi commerciali di Rockwell Automation, Inc.CIP Safety ed EtherNet/IP sono marchi commerciali di ODVA, Inc.Tutti gli altri marchi commerciali e marchi registrati sono di proprietà delle rispettive aziende.。

Battery Power Function Pack Design Guide Powering Y our Portable DesignMicrocontrollers PIC16C781MOSFET Drivers TC1411NBattery Chargers MCP73828Charge Pump DC/DC Converters MCP1252-ADJLow Dropout Linear Regulators TC55, TC1016Design ideas in this guide are based on many of the devices featured in Microchip Technology's Battery Management Function Pack, or “Fun Pack.” A complete device list and corresponding data sheets for these products can be found at /funpack Design ideas in this guide use the following devices:Operational Amplifiers MCP6041, MCP602Switching Regulators MCP1601, TC1102Closed loop control with linear regulators.Often the voltage source is “incompatible” with the load. A buffer needs to be placed between the source and load to regulate or control the voltage and/or current.Linear regulators provide closed loop control to “regulate”the voltage at the load. A basic linear regulator has three main components: an operational amplifier, a voltage reference, and a pass transistor . The main purpose of a linear regulator is to produce a constant, accurate outputvoltage at a lower magnitude than the input voltage.TC1016 Linear Regulator Features:n Space-Saving 5-Pin SC-70 Packagen Extremely Low Operating Current for Longer n Battery Life: 53 µA (typ.)n Very Low Dropout Voltage n Rated 80 mA Output CurrentnRequires only 1 µF Ceramic Output Capacitancen High Output Voltage Accuracy: ±0.5% (typ.)n 10 µsec (typ.) Wake-Up Time from SHDN n Power-Saving Shutdown Mode: 0.05 µA(typ.)n Over-Current and Over-Temperature Protection nPin Compatible Upgrade for Bipolar RegulatorsBeyond the basics, linear regulators often offer additional features: over-current protection, thermal protection, and reversed polarity protection to name a few.Microchip offers a line of CMOS, low dropout linear regulators. A low dropout regulator is a type of linearregulator designed to minimize the saturation of the output transistor and to minimize the drive requirements. LDOs can operate with a very small input to output differential.Specifications: Selected Linear RegulatorsTypical Typical Dropout Device Max. Input Output Output Active Voltage @ Max. Name Voltage Voltage Current (mA)Current (µA)I OUT (mV)FeaturesPackages TC1016 6.0 1.8, 2.7, 2.8, 3.08050150Shutdown5-pin SC-70TC5510 1.8, 2.5, 3.0, 3.3, 5.0250 1.13803-pin SOT-23A/SOT-89,3-pin TO-92TC2014 6.0 1.8, 2.5, 3.0, 3.3505545Shutdown, Reference bypass input 5-pin SOT-23A TC2015 6.0 1.8, 2.7, 2.8, 3.0, 3.31005590Shutdown, Reference bypass input 5-pin SOT-23A TC2185 6.0 1.8, 2.7, 2.8, 3.0, 3.315055140Shutdown, Reference bypass input 5-pin SOT-23A TC2116 6.0 1.8, 2.7, 2.8, 3.0, 3.315055140Shutdown, Error output5-pin SOT-23A TC21176.01.8,2.5,3.0, 3.3800806003-pin SOT-223, 3-pin DDPAKSpecifications: Selected Linear Regulator Combination Products:TC1300 6.0 2.5, 2.7, 2.8, 2.85, 30080210Shutdown Reference bypass input,8-pin MSOPLDO plus RESET output TC1301A/B*6.01.5 - 3.3 @ 100 mV300 / 150116104 / 150Dual LDO with RESET & 8-pin MSOP , 8-pin DFNincrementShutdown; TC1301B has individual shutdown*available summer 2003names: voltage step-down converter, DC-to-DC converter,chopper converter, etc. No matter what the name, inductor based, buck derived, switch-mode converters account for 80% to 90% of all converters sold.Microchip offers inductor based buck regulators and controllers. The distinction is whether or not the switch (MOSFET) is internal to the device (regulator) or controlled externally (controller). The schematic represented here depicts a MCP1601 buck regulator with its associatedexternal components.MCP1601 Synchronous Buck Regulator Features:n Input Range of 2.7V to 5.5V n PWM, PFM and LDO Operation n Integrated Switchesn 750 kHz Fixed Switching Frequencyn Oscillator Synchronization to 1 MHz PWM Mode n Auto-Switching from PWM/PFMn100% Duty Cycle Capable for Low Input Voltagen 500 mA Continuous Output Current n Under-Voltage Lock-Out Protection n Over-Temperature Protection n Integrated Soft Start Circuitry n Output Voltage Capability to 0.9Vn Wide Operating Temperature Range: -40°C to +85ºC nSmall MSOP8 PackageEmploying a switch-mode power converter.Anotherapproach to transferring the battery energy to the system load is to employ a switch-mode power converter . The primary advantage of a switch-mode power converter is that it can, ideally, accomplish power conversion and regulation at 100% efficiency. All power loss is due to non-ideal components and power loss in the control circuit.The buck converter is an inductor based switch-mode power converter used to step-down an input source to a lower magnitude output. The buck converter goes by manySpecifications: Selected Switching RegulatorsInput Voltage Output Switching Device OutputBuck/BoostRange (V)Voltage (V)Frequency FeaturesPackages MCP1601 Adjustable Step-Down 2.7 to 5.50.9 to V IN PWM/PFM/UVLO, Auto Switching, LDO 8-pin MSOP LDO TC105 Fixed Step-Down 2.2 to 10 3.0, 3.3, 5.0PFM/PWM Low-power shutdown mode5-pin SOT-23A TC110 Fixed Step-Up 2.0 to 10 3.0, 3.3, 5.0PFM/PWM Soft-start, Low-power shutdown mode 5-pin SOT-23A TC115 Fixed Step-Up 0.9 to 10 3.0, 3.3, 5.0PFM/PWM Feedback voltage sensing, Low-power shutdown mode5-pin SOT-89TC120 Fixed Step-Down 1.8 to 10 3.0, 3.3, 5.0PFM/PWM Soft-start, Low-power shutdown mode 8-pin SOP TC125 Fixed Step-Up 0.9 to 10 3.0, 3.3, 5.0PFM Low-power shutdown mode 5-pin SOT-23A TC126FixedStep-Up0.9 to 103.0, 3.3, 5.0PFMFeedback voltage sensing5-pin SOT-23A34Specifications: Battery Charger FamilyDevice Vcc Typical Supply Name Mode Cell Type Range (V)Current (µA)Features Packages MCP73826Linear Single Cell Lithium Ion 4.5 to 5.5260Small size6-pin SOT-23A MCP73827Linear Single Cell Lithium Ion 4.5 to 5.5250Mode indicator, charge current monitor 8-pin MSOP MCP73828LinearSingle Cell Lithium Ion4.5 to5.5265Charge complete indicator, temperature monitor8-pin MSOPMCP73828 Battery Charger Features:n High Accuracy Preset Voltage Regulation n Programmable Charge Current n Charge Complete IndicatornContinuous Temperature MonitoringUsing the MCP73828 charge management controller.The MCP73828 is a linear charge management controller for use in space-limited, cost sensitive applications. The MCP73828 combines high accuracy constant voltage,controlled current regulation, cell preconditioning, celltemperature monitoring, and charge complete indication in a space saving 8-pin MSOP package. The MCP73828provides a stand-alone charge management solution.n Automatic Power-Down when Input Power Removed n Shutdown Input for Charge Termination Control n Small 8-pin MSOP PackageSpecifications: PIC16C781/782Device OTP/Flash RAM I/O 8-Bit ADCComp-Timers/Max.Name Bytes Words Bytes Pins Packages Channels arators WDT Speed MHz.Other FeaturesPIC16C78117921024x141281620P , 20SO, 20SS, 821-16 bit, 1-8 bit,20Precision Vref, Op Amp, PSMC,PIC16C78235842048x1420JW1-WDT4MHz internal oscillator, DAC TC55 Low Dropout Positive Voltage Regulator Features:n Very Low Operating Current (1µA)n Very Low Dropout Voltage: 120mV typ at 100mA, 380mV typ at200mAn High Output Current: 250mA (V OUT = 5.0V)TC1411N Power MOSFET Driver Features:n Single, Non-inverting, Low-Side Driver, 1A Peak Output Current n Latch-Up Protected: Will Withstand 500mA Reverse Current n Input Will Withstand Negative Inputs Up to 5V nESD Protected: 4kVSwitch-mode, multi-chemistry charge management controller.The PIC16C781/782 are mixed analog/digital microcontrollers that combine the popular PIC®architecture with new mixed signal peripherals. The resulting devices change many of the old conventions of embedded design, and open up new application possibilities for the microcontroller .One of the applications that can take advantage of the PIC16C781/782’s unique peripheral set is a switch-mode,PIC16C781/782 Microcontroller Features:n Complete programmability n Enormous flexibilityn Stand-alone operation or in conjunction with a Smart Battery Pack nSix peripherals including 8x8-bit A/D, 8-bit D/A, V REF , Op Amp, 2x comparators, programmable switch mode controllerMCP602 Op Amp Features:n Specifications rated from 2.7V to 5.5V supplies n 2.8MHz GBWP , Unity gain stable n Low power I DD = 325mA maxnDual (MCP601 sinlge, MCP604 quad, MCP603 w/Chip Select)multi-chemistry charge management controller . This solution provides an enormous amount of design flexibility. The PIC16C781/782 can be used in a variety of switch-mode architectures allowing for diverse input and output voltages, control over charge current, charge voltage, or both. In addition, charge termination and multiple safety features can be incorporated.Specifications: MCP601/2/3/4Device# per package GBWP I Q Typ. (µA)V OS Max (mV)Operating VoltagePackagesMCP601/2/3/41/2/1 with CS/4 2.8 MHz23022.7 to 5.58-pin PDIP , 8-pin SOIC, 8-pin MSOP , 5-pin SOTSpecifications: TC55 Low Dropout Positive Voltage RegulatorDevice Max. Input VoltageOutput Voltage (V)Typ. Dropout Voltage @ 200mVTyp. Output Volt. Accuracy (%)PackagesTC55101.8,2.5,3.0,3.3,5.0380mV±0.53-pin SOT-23A, 3-pin SOT-89, 3-pin TO-92Specifications: TC1411N Power MOSFET DriverDevice Configuration Peak Output Current (A)Output Resistance (RH/RL) (Max. Ω@ 25°C)Max. Supply Voltage (V)PackagesTC1411NSingle, non-inverting111/11168-pin PDIP , 8-pin SOIC56Biasing the backlighting. The MCP1252-ADJ is an inductorless, positive-regulated charge pump DC/DC converter. The device generates an adjustable output voltage. It is specifically designed for applications requiring low noise and high efficiency and is able to deliver up to 120 mA output current. The device allows the input voltage to be lower or higher than the output voltage, by automatically switching between buck/ boostoperation.MCP1252 Charge Pump Features:n Inductorless, Buck/Boost, DC/DC Converter n Low Power: 80 µA (Typical)n 120 mA Output Currentn Wide Operating Temperature Range: -40°C to +85°C n Thermal Shutdown and Short-Circuit Protection nUses Small Ceramic Capacitorsn Low Power Shutdown Mode: 0.1 µA (Typical)n Shutdown Input Compatible with 1.8V Logic n V IN Range: 2.0V to 5.5V n Adjustable Output Voltage n Space-saving, 8-Lead MSOPnSoft-Start Circuitry to Minimize In-Rush CurrentToday's new color displays require a pure white light for back lighting. White light emitting diodes have become the component of choice. The MCP1252-ADJ is an excellent choice for biasing the back lighting. Light intensity is controlled uniformly through the use of ballast resistors.The peak intensity is set by the feedback to theMCP1252-ADJ. Dimming is accomplished by pulse-width modulating the shutdown pin of the device.Selected Regulated Charge Pump DC/DC Converters Specifications:Typical ActiveDevice Input Voltage Output Max. Input Output NameRange (V)VoltageCurrent (µA)Current (mA)FeaturesPackages MCP1252-33X50 2.7 to 5.5Selectable 3.3 or 5.0V 120 120mA for V IN >3.0V Power-Good output, 650 kHz oscillator 8-pin MSOP MCP1252-ADJ 2.0 to 5.5 Adjustable 1.5V to 5.5V 120 120mA for V IN >3.0V Power-Good output, 650 kHz oscillator 8-pin MSOP MCP1253-33X50 2.7 to 5.5 Selectable 3.3 or 5.0V120 120mA for V IN >3.0V Power-Good output, 1 MHz oscillator 8-pin MSOP MCP1253-ADJ 2.0 to 5.5 Adjustable 1.5V to 5.5V120 120mA for V IN >3.0VPower-Good output, 1 MHz oscillator8-pin MSOPTC11422.5 to 5.5-3V to -5V40020Regulated GaAs FET Supply, Internal 200 kHz oscillator, External clock 3 kHzto 500 kHz, Low-power shutdown mode 8-pin MSOPMicrochip also offers Inverting or Doubling Charge Pumps, Multi-Function Charge Pumps and Inverting and Doubling Charge Pumps. See the Microchip website for complete specifications .Driving white light emitting diodes in series. Analternative to the MCP1252 back lighting approach is to drive the white light emitting diodes in series. The series connection provides improved brightness matchingbetween the diodes since they all operate with the sameTC110 Step-Up DC/DC Controller Features:n Assured Start-up at 0.9Vn 50uA (Typ) Supply Current (f OSC = 100kHz)n 300mA Output Current @ V IN > 2.7V n 0.5uA Shutdown Moden 100kHz and 300kHz Switching Frequency Options n Programmable Soft-Start n 84% Typical EfficiencynSmall Package: 5-Pin SOT-23ASelected Switching Regulators Specifications:Input Voltage Output SwitchingDevice Output Buck/Boost Range (V)Voltage (V)Frequency FeaturesPackages TC110 Fixed Step-Up 2.0 to 10 3.0, 3.3, 5.0PFM/PWM Soft-start, Low-power shutdown mode 5-pin SOT-23A TC120FixedStep-Down1.8 to 103.0, 3.3, 5.0PFM/PWMSoft-start, Low-power shutdown mode8-pin SOPcurrent. Light intensity is adjusted by controlling the current through the diodes.The TC110 is a boost controller that can be used to bias the diodes in series as depicted.MCP6041/2/3/4 Operational Amplifier Features:n Low Quiescent Current: 600 nA/Amplifier (typ)n Rail-to-Rail Input: -0.3 V to V DD +0.3 V (max)n Rail-to-Rail Output: V SS +10 mV to V DD -10 mV (max)n Gain Bandwidth Product: 14 kHz (typ)n Wide Supply Voltage Range: 1.4 V to 5.5 V (max)n Unity Gain Stablen Available in Single, Dual and Quad n Chip Select (CS) with MCP6043n5-lead SOT-23 package (MCP6041 only)Selected Op Amp Specifications:Device# per packageGBWP IQ Typ. (µA)V OS Max (mV)Operating VoltageFeatures Packages MCP6041114 kHz 0.63 1.4 to 5.5Rail-to-rail I/O, 8-pin PDIP/SOIC/MSOP MCP61411100 kHz 0.63 1.4 to 5.5Rail-to-rail I/O, G>10 stable 8-pin PDIP/SOIC/MSOP MCP61422100 kHz 0.63 1.4 to 5.5Rail-to-rail I/O, G>10 stable 8-pin PDIP/SOIC/MSOP MCP61431100 kHz 0.63 1.4 to 5.5Rail-to-rail I/O, G>10 stable, CS 8-pin PDIP/SOIC/MSOP MCP61444100 kHz0.631.4 to 5.5Rail-to-rail I/O, G>10 stable14-pin PDIP/SOIC/MSOP7-The following Application Notes and Technical Briefs are available on the Microchip website: Application Notes:AN246:Driving the Analog Inputs of a SAR A/D Converter AN667:Smart Battery Charger with SMBus InterfaceAN693:Understanding A/D Converter Performance Specifications AN779:Using the Microchip TC54 Voltage DetectorAN786:Considerations for Driving Power MOSFETs in High Current, Switch-mode Regulators AN792: A Method to Determine How Much Power a SOT23 Can Dissipate in an ApplicationAN793:Power Management in Portable Applications: Understanding the Buck Switch-mode Power Converter AN799:Matching MOSFET Drivers to MOSFETsTechnical Briefs:TB065:Linear Circuit Devices for Applications in Battery Powered Wireless SystemsEvaluation Boards:Microchip offers a number of boards to help you evaluate device families. Contact your local Microchip sales office for a demonstration.Evaluation boards are available for the following devices featured in this guide.MCP1252/3MCP73826/7/8MCP1601MCP1301Information subject to change. The Microchip name and logo, PIC, PICmicro, are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other coun-tries. All other trademarks mentioned herein are the property of their respective companies. © 2003, Microchip Technology Inc. All rights reserved. DS39610A 5/2003Microchip Technology Inc. • 2355 W. Chandler Blvd. • Chandler, AZ 85224-6199 • (480) 792-7200 • Fax (480) 792-9210Microchip Technology’s Analog & Interface Product Families。

硬盘盒主控芯片介绍元谷选元谷刀锋不如选元谷星钻iPD-USB 2.5寸串口SATA 移动硬盘盒元谷PD2500也可以元谷的做工没得挑，最关键得是看一下内部芯片。

一些主流硬盘盒芯片介绍IDE芯片：68300A/B/C赛普拉斯公司最出名的芯片，由原ISD公司的经典产品ISD300A 控制芯片二次开发得来，用于2.5及3.5系列IDE设备，优点是兼容性好，故障率低，缺点是偶尔会供电不足现象，元谷公司早期采用68300B的PD2500盒子就出现过此类问题，68300C得到较好改善。

经典的有：元谷PD2500、奈雷特D2/D4、瀚士威H570C、H560C等。

后期好一点的盒子USB线上都带双接头取电。

友情提示：赛普拉斯公司目前还没推出支持SATA硬盘的芯片，所以请不要开口赛普拉斯、闭口赛普拉斯。

INITIO 1511美国英尼硕公司主推的IDE控制芯片，各项技术指标都可以赛普拉斯芯片，但主要是价位较高，况且受产能限制，在市面上见的不多。

元谷刀锋2500IDE采用此款芯片。

NT68320 BE/GP图美自有芯片，图美是目前国内唯一能研发控制芯片的硬盘盒厂商，技术实力可见一斑，BE为备份型，GP为高速型。

整体评价介于PL-2506和68300之间。

NEC D720133GB这个不用多说，NEC的牛X芯片，性能速度兼容性绝对一流，但是价格也是一流。

我目前的产品线只有微星原装V3使用的是这款芯片，不过后期我估计也要换掉，因为只能支持IDE硬盘，不利于工厂控制成本，现在IDE笔记本盘比SATA盘要贵的多。

PL-2506旺玖公司的主要产品，价位中下，兼容性不错，功耗控制也较好，图美U225X就是采用这款芯片。

M110 台湾奇岩公司的得力产品，众多知名厂商选用，通用性强，1.8寸-5.25寸IDE设备通吃，性能不错。

缺陷还未发现。

蓝硕的USB易驱就是用的M110。

GL811/811E科X等杂牌用的最多的芯片，价格低廉，参数一般。

用于电源、继电器和螺线管的协同式线路保护
两岸召开信息产业技术论坛强化产业结构升级5大措施台湾立锜突围TI模拟攻势台积电扮关键要角面对大小功率LED照明方案工程师该如何选择LED照明灯具技术8大未来的发展趋势电池数据记录仪诞生记用于电源、继电器和螺线管的协同式线路保护智能电池系统的管理和应用薄膜电容器模组应用于感应加热设备
在各种新型先进设备上实施协同式电路保护可有助于提高设备可靠性、减少元器件数量，并使其符合严格的安规要求。

协同式方法能够帮助保护电源、继电器和螺线管，避免因线路故障或过载造成电流增大以及尖峰电压或暴露在稳态过压状态带来的危害。

SMPS设计考虑因素
开关电源(SMPS)可满足消费类电子对尺寸、重量以及节能的需求，因此在很多应用包括白家电中正替代线性稳压器。

但因为SMPS缺乏过去设计方案所具有的固有电阻，因此它们通常需要更为可靠的线路保护。

高分子聚合物正温系数(PPTC)过电流保护器件可以帮助制造商满足UL60950-1/LPS(有限电源)对SMPS的要求，并提高设备的安全性与可靠性。

该器件虽然不能防止故障的发生，但却能快速反应，将电流限制到一个安全的水平，以使下游元件免遭损坏。

另外PPTC器件尺寸较小，可以很容易地用在空间受限的应用中。