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UC283-1资料

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UC182-1,-2,-3,-ADJ

UC282-1,-2,-3,-ADJ

UC382-1,-2,-3,-ADJ

SLUS317 - JANUARY 1999FEATURES

•Fast Transient Response

•10mA to 3A Load Current

•Short Circuit Protection

•Maximum Dropout of 450mV at 3ALoad Current

•Separate Bias and VIN Pins

•Available in Adjustable or FixedOutput Voltages

•5 Pin Package allows Kelvin Sensingof Load Voltage

•Reverse Current ProtectionDESCRIPTION

TheUC382isalowdropoutlinearregulatorprovidingaquickresponseto

fastloadchanges.Combinedwithitsprecisionon-boardreference,the

UC382excelsatdrivingGTLandBTLbuses.Duetoitsfastresponseto

loadtransients,thetotalcapacitancerequiredtodecoupletheregulator’s

outputcanbesignificantlydecreasedwhencomparedtostandardLDOlin-

ear regulators.

Dropoutvoltage(VINtoVOUT)isonly450mVmaximumat100°Cand

350mV typical at 3A load.

Theon-boardbandgapreferenceisstablewithtemperatureandscaledfor

a1.200Vinputtotheinternalpoweramplifier.TheUC382isavailablein

fixedoutputvoltagesof1.5V,2.1V,or2.5V.Theoutputvoltageoftheadjust-

ableversioncanbesetwithtwoexternalresistors.Iftheexternalresistors

are omitted, the output voltage defaults to 1.2V.FastLDOLinear Regulator

BLOCK DIAGRAM

UDG-96037-1元器件交易网www.cecb2b.comUC182-1,-2,-3,-ADJ

UC282-1,-2,-3,-ADJ

UC382-1,-2,-3,-ADJ

ABSOLUTE MAXIMUM RATINGS

VB. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13VVIN. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7.5VOutput Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . .+1.2V to 6.0VStorage Temperature. . . . . . . . . . . . . . . . . . .–65°C to +150°CJunction Temperature. . . . . . . . . . . . . . . . . . .–55°C to +150°CLead Temperature (Soldering, 10 sec.). . . . . . . . . . . . .+300°C

Currentsarepositiveinto,negativeoutofthespecifiedtermi-nal.ConsultPackagingSectionofDatabookforthermallimita-tions and considerations of packages.

CONNECTION DIAGRAMS

5-Pin TO-220 (Top View)

T Package5-Pin TO-263 (Top View)

TD PackageORDERING INFORMATIONTemperature RangePackageOutput Voltage

1: –55°C to +125°CT: TO-2201: 1.5V

2: –25°C to +100°CTD: TO-2632: 2.1V

3: 0°C to +100°C3: 2.5V

ADJ: 1.2V or Adjustable

Note:Tab tied to Pin 3.Note:Tab tied to Pin 3.

ELECTRICAL CHARACTERISTICS:Unless otherwise stated, these parameters apply for TA= –55°C to 125°C for theUC182-X series, –25°C to +100°C for the UC282-X series and 0°C to +100°C for the UC382-X, VB = 5V; VIN = 3.3V, VOUT =2.5V for the UC382-ADJ, TA= TJ.

PARAMETERSTEST CONDITIONSMINTYPMAXUNITS

UC382-3 Fixed 2.5V, 3A Family

Output Voltage (IVOUT= 100mA)UC382-32.4752.5002.525V

UC282-3 and UC182-32.4502.5002.525V

Load RegulationIVOUT= 10mA to 3A0.54mV

VIN PSSR80100dB

VB PSSR5060dB

VIN Dropout Voltage = VIN–VOUTIVOUT= 3A, TJ= 25°C350425mV

IVOUT= 3A, UC382-3350450mV

IVOUT= 3A, UC282-3 and UC182-3350500mV

VB Dropout = VB–VOUTIVOUT= 3A, UC382-31.82.10V

IVOUT= 3A, UC282-31.82.20V

IVOUT= 3A, UC182-31.82.35V

Short Circuit Current Limit3.34.5A

VB CurrentIVOUT= 10mA69mA

IVOUT= 3A1860mA

VIN CurrentIVOUT= 3A2.942.97A

UC382-2 Fixed 2.1V, 3A Family

Output Voltage (IVOUT= 100mA)UC382-22.0792.1002.121V

UC282-2 and UC182-22.0582.1002.121V

Load RegulationIVOUT= 10mA to 3A0.54mV

VIN PSSR80100dB元器件交易网www.cecb2b.comUC182-1,-2,-3,-ADJ

UC282-1,-2,-3,-ADJ

UC382-1,-2,-3,-ADJ

ELECTRICAL CHARACTERISTICS:Unless otherwise stated, these parameters apply for TA= –55°C to 125°C for theUC182-X series, –25°C to +100°C for the UC282-X series and 0°C to +100°C for the UC382-X, VB = 5V; VIN = 3.3V, VOUT =2.5V for the UC382-ADJ, TA= TJ.

PARAMETERSTEST CONDITIONSMINTYPMAXUNITS

UC382-2 Fixed 2.1V, 3A Family (cont.)

VB PSSR5262dB

VIN Dropout Voltage = VIN–VOUTIVOUT= 3A, TJ= 25°C350425mV

IVOUT= 3A, UC382-2350450mV

IVOUT= 3A, UC282-2 and UC182-2350500mV

VB Dropout = VB–VOUTIVOUT= 3A, UC382-21.82.10V

IVOUT= 3A, UC282-21.82.20V

IVOUT= 3A, UC182-21.82.35V

Short Circuit Current Limit3.34.5A

VB CurrentIVOUT= 10mA69mA

IVOUT= 3A1860mA

VIN CurrentIVOUT= 3A2.942.97A

UC382-1 Fixed 1.5V, 3A Family

Output Voltage (IVOUT= 100mA)UC382-11.4851.5001.515V

UC282-1 and UC182-11.4701.5001.515V

Load RegulationIVOUT= 10mA to 3A0.54mV

VIN PSSR80100dB

VB PSSR5565dB

VIN Dropout Voltage = VIN–VOUTIVOUT= 3A, TJ = 25°C350425mV

IVOUT= 3A, UC282-1350450mV

IVOUT= 3A, UC282-2 and UC182-1350500mV

VB Dropout = VB–VOUTIVOUT= 3A, UC382-11.82.10V

IVOUT= 3A, UC282-11.82.20V

IVOUT= 3A, UC182-11.82.35V

Short Circuit Current Limit3.34.5A

VB CurrentIVOUT= 10mA69mA

IVOUT= 3A1860mA

VIN CurrentIVOUT= 3A2.942.97A

UC382-ADJ Adjustable, 3A Family

ADJ Voltage (IVOUT= 100 mA)UC382-ADJ1.1881.2001.212V

UC282-ADJ and UC182-ADJ1.1761.2001.212V

Load RegulationIVOUT= 10mA to 3A0.54mV

VIN PSSRVOUT Programmed for 2.5V80100dB

VB PSSRVOUT Programmed for 2.5V5060dB

VIN Dropout Voltage = VIN–VOUTIVOUT= 3A, TJ= 25°C350425mV

合集下载

Unitrode Products UCC1839, UCC2839, UCC3839 数据手册

Unitrode Products UCC1839, UCC2839, UCC3839 数据手册

UCC1839

UCC2839

UCC3839

04/99FEATURES

•Practical Secondary Side Control ofIsolated Power Supplies

•Provides a Self Regulating BiasSupply From a High Input VoltageUsing an External N-ChannelDepletion Mode FET

•Onboard Precision, Fixed Gain,Differential Current Sense Amplifier

•Wide Bandwidth Current ErrorAmplifier

•5V Reference

•High Current, Programmable GmAmplifier Optimized to DriveOpto-couplersSecondary Side Average Current Mode Controller

BLOCK DIAGRAM

UDG-97011DESCRIPTION

TheUCC3839providesthecontrolfunctionsforsecondarysideaverage

currentmodecontrolinisolatedpowersupplies.Startup,pulsewidth

modulationandMOSFETdrivemustbeaccomplishedindependentlyon

municationfromsecondarytoprimarysideisantici-

pated through an opto-isolator.

Accordingly,theUCC3839containsafixedgaincurrentsenseamplifier,

voltageandcurrenterroramplifiers,andaGmtypebuffer/driveramplifier

常用IC技术参数

常用IC技术参数

常用IC技术参数

公司 型 号 功能简介

MAX MAX1482EPD RS-485/RS-422接口的低功耗收发器。有斜率抑制功能，速率高达250kbps,工作电流20uA。MAX1482为全双工工作模式，MAX1483为半双工。

MAX MAX1483EPA

MAX MAX1487MJA RS-485/RS-422接口的低功耗收发器。发送速率高达2.5Mbps,半双工通信

MAX MAX485MJA

MAX MAX488MJA

MAX MAX489EPD

MAX MAX490MJA

MAX MAX1489EEPD +/-15KV ESD保护，四心线，低功耗RS-232接口接收器。速率120kbps,工作电流350uA.

MAX MAX202ECPE +/-15kv ESD保护，RS-232接口收发器。工作电压+5V，速率120Kbps

MAX MAX202EEPE

MAX MAX241ECWI

MAX MAX233EPP 多通道的RS-232接口主接收机。

MAX MAX238ENG

MAX MAX3244EEAI 工作电压3.0--5.5V,工作电流1uA,速率1Mbps,RS-232接口，可自动关断正极的收发机。

MAX MAX354MJE 出错保护类似多路器

MAX MAX354EPE

MAX MAX355EPE

MAX MAX382EWN 低电压，8信道/双4信道，多路器，可关闭输入

MAX MAX391MJE 精度高，四心线，单刀单掷开关

MAX MAX4501EPA 低电压，SPST(单刀单掷开关），COMS

MAX MAX469EPE RGB视频缓冲器，2-信道，三芯绞线

MAX MAX690AEPA 微处理器管理电路

MAX MAX692AMJA

MAX MAX805LMJA

MAX MAX690MJA 有监测系统和电池转换功能的uP重置IC

UC2872资料

UC2872资料

UC1872

UC2872

UC3872

07/99FEATURES

•Controls Different Types of Lamps:Cold Cathode Fluorescent, Neon, andGas Discharge

•Zero Voltage Switching (ZVS) ofPush-Pull Drivers

•Accurate Control of Lamp Current

•Variable Lamp Intensity Control

•1µA Disable Current

•4.5V to 24V Operation

•Open Lamp Detection CircuitryDESCRIPTION

TheUC3872isaresonantlampballastcontrolleroptimizedfordriving

coldcathodefluorescent,neon,andothergasdischargelamps.Theres-

onantpowerstagedevelopsasinusoidallampdrivevoltage,andmini-

mpintensityadjustmentis

accomplishedwithabuckregulator,whichissynchronizedtotheexternal

powerstage’sresonantfrequency.Suitableforautomotiveandbattery

powered applications, the UC3872 draws only 1µA when disabled.

Softstartandopenlampdetectcircuitryhavebeenincorporatedtomini-

mizecomponentstresses.Openlampdetectionisenabledatthecomple-

轴承标准游隙表

轴承标准游隙表

哈轴瓦轴洛轴西北轴

端盖轴承;UC209

锥型轴承;7313

滚珠轴承;220.0041

滚柱轴承;735355014

滚针轴承;NAV4009;GB/T2974-93

滚针轴承;NAV4006

滚针轴承;NAV4005

滚针轴承;NATR30;NATR30

滚针轴承;NA4911

滚针轴承;LM12749

滚针轴承;K80X88X35

滚针轴承;K45X53X20

滚针轴承;K40X47X20;GB/T2974-93

滚针轴承;K25X31X20

滚针轴承;D6534912

滚针轴承;D6534911

滚针轴承;D649912K;GB/T2974-93

滚针轴承;AK-633;GB/T2974-93

滚针轴承;943/40;GB/T2974-93

滚针轴承;943/35;GB/T2974-93

滚针轴承;942/40;GB/T2974-93

滚针轴承;942/25;GB/T2974-93

滚针轴承;9349/47K;GB/T2974-93

滚针轴承;9348/55K;GB/T2974-93

滚针轴承;9249/54;GB/T2974-93

滚针轴承;9249/43;GB/T2974-93

滚针轴承;9243/40;GB/T2974-93

滚针轴承;9243/16;GB/T2974-93

滚针轴承;6903

滚针轴承;67941/25;GB/T2974-93

滚针轴承;64905;GB/T2974-93

滚针轴承;64903;GB/T2974-93

滚针轴承;6248/30;GB/T2974-93

滚针轴承;62×70×40

滚针轴承;4084105

滚针轴承;309;GB/T5801-1994

滚针轴承;220.0001

滚动轴承;NJ2206EGB/T283

滚动轴承;NJ208EGB/T283

滚动轴承;3003152

滚动轴承;23148GB/T288-94

滚动轴承;22356GB/T288-94

摆线轴承;XWD10

微型轴承;Italy07x626-22/LHT23名称型号价格（含税）