高精度电流传感器规格书.pdf
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高精度电流传感器规格书AIT400-SG深圳市航智精密电子有限公司AIT400-SG 高精度电流传感器多点零磁通技术系统应用于现有高精度直流传感器技术之中,激励磁通闭环控制技术、自激磁通门技术及多闭环控制技术相结合,实现了对激励磁通、直流磁通、交流磁通的零磁通闭环控制,并通过构建高频纹波感应通道实现了对高频纹波的检测,从而使传感器在全带宽范围内拥有比较高的增益和测量精度。
产品图片核心技术性能特点◇激励磁通闭环控制技术◇原、副边隔离测量◇自激退磁技术◇出色的线性度和准确度◇多点零磁通技术◇极低的温漂◇多级量程自动切换技术◇极低的零漂◇温控补偿技术◇强抗电磁干扰能力◇宽频带和低响应时间应用领域◇医疗设备:扫描仪、MRI ◇轨道交通:高速列车、地铁、有轨无轨电车◇电力:变流器、逆变器◇测试仪器仪表:功率分析仪、高精密电源◇新能源:光伏、风能◇汽车:电动汽车◇舰船:电力驱动舰船◇航空航天:卫星、火箭◇计量:检定与校准◇智能电网测量:发电、电池监测、中低压变电站◇工业控制:工业电机驱动、UPS 、焊接、机器人、吊车、电梯、滑雪升降机电气性能项目符号测试条件最小值标称最大值单位原边额定直流电流I PN_DC— — ±400 — Adc 原边额定交流电流*I PN— — 282 — Aac 原边过载电流I PM1分钟— — ±480 Adc 工作电压V C— ±14.2 ±15 ±15.8 V 功耗电流I PWR原边额定电流±30 ±230 ±270 mA 电流变比K N输入:输出2000:1 2000:1 2000:1 — 额定输出电流I SN原边额定电流— ±0.2 — A 测量电阻R M见图1 0 5 12 Ω* :指交流有效值精度测量项目符号测试条件最小值标称最大值单位准确度X G输入直流,25±20ºC — — 10 ppm 线性度εL— — — 2 ppm 温度稳定性T C— — — 0.1 ppm/K 时间稳定性T T— — — 0.2 ppm/month 供电抗干扰T V— — — 1 ppm/V 零点失调电流I O@25ºC — — 1(用户可调零)ppm 纹波电流I N DC-10Hz — — 0.5 ppm动态响应时间t r di/dt=100A/us,上升至90%I PN— — 1 us 电流变化率di/dt — 100 — — A/us频带宽度(-3dB) F — 0 — 500 kHz零点失调电流I OT全温度范围— — ±5 μA安全特性项目符号测试条件数值单位隔离电压/ 原边与副边之间Vd 50Hz,1min 5 KV瞬态隔离耐压/ 原边与副边之间Vw 50us 10 KV爬电距离/ 原边与外壳之间dCp — 11 mm电气间隙距离/ 原边与外壳之间dCi — 11 mm 相比漏电起痕指数CTI IEC-60112 600 V一般特性项目符号测试条件最小标称最大单位工作温度范围T A—-40—+85ºC 质量m—1060±20g负载电阻使用说明图:负载电阻与测量电流关系图运行状态说明◇正常运行时,绿灯常亮:设备上电后,当设备正常工作时,绿色指示灯常亮,D-Sub9接口的第3脚和第8脚导通。
*Solder welding is required for instruction.Slot Number SetupResetFunctionWiringEvery time it's used, currentconsumption is added to SBS-01C.SBS-01C does not reset even if a 80mm (3.15 in.)21mm (0.83in.)Use : Current sensor Detection item :Current (0A ~150A)Voltage (0V ~70V)Consumption capacity (0mAh ~32767mAh)*Measurement is impossible less than 1A (Current).Weight :23g(0.81 oz.)Voltage : DC 3.7V ~7.4V Current : 0A ~70A 70A ~150A (within 10 seconds)Please note that the proper default slot for this accessory is number 24. This sensor uses 3 slots, starting at 1, 2, 3, 4, 5, 8, 9, 10, 11, 12, 13, 16, 17, 18, 19, 20, 21, 24, 25, 26, 27, 28, 29. Information on how to change the slot assignment is included in the transmitter's manual.Telemetry current sensorThank you for purchasing Futaba's SBS-01C Current Sensor. Please read this manual thoroughly to ensure proper current sensor performance. We also encourage you to retain the manual for future reference.●Telemetry data:The SBS-01C can monitor and display the in-flight current, voltage, and current consumption of the drive battery.●Applicable systemsFutaba T18MZ -WC Futaba T18MZ V2.6 ~Futaba T18SZ V1.4 ~Futaba T4PX V1.4 ~Can be checked at the transmitter.(May, 2016)The SBS-01C should be mounted away from magnetic bodies.If close to a magnetic body, the DC current may not be measured correctly.Do not install the SBS-01C in a 昀氀ammable location.There is danger of ignition and fire.To ensure that the SBS-01C isfunctioning as desired, please test Do not use until inspection is complete.②Cut approximately 30mm of the black (-) line from the cable.Solder the fuse inline on the black (-) wire and then reattach the section of wire that was previously removed. The fuse should be attached as close to the external power supply as possible.③ Place a piece of heat shrink tubing over the fuse, ensuring that it covers the soldered areas. Shrink the tubing snug to the fuse and the wire using a heat gun.④ The cable should be connected as shown in the diagram below.⑤ The manual for the Telemetry system should be referred to after the setup is complete. Check to make sure it functions as desired and that it provides the correct data on the display.Fuse to Black line (-)Heat shrink tubeThe connection is affixed to the ESC on the wires that are connected to the battery by soldering them and then protecting them with heat shrink.Fuse(mount in either direction)FUTABA CORPORATION1080 Yabutsuka, Chosei-mura, Chosei-gun, Chiba-ken, 299-4395, JapanPhone: +81 475 32 6982, Facsimile: +81 475 32 6983©FUTABA CORPORATION 2016, 5 (1)。
深圳市知用电子有限公司AC/DC 高精度电流探头CTB500(500A/100kHz) CTB1000(1000A/20kHz)深圳市知用电子有限公司CY BE R TE K前 言首先,感谢您购买该产品。
为了你安全正确地使用本产品,请先仔细阅读说明书。
这份产品使用说明书是关于该产品的功能、使用方法、操作注意事项等方面的介绍。
说明书中,注释将用以下的符号进行区分。
为安全使用本机器必须严格遵守以下安全注意事项。
如果不按照该说明书使用的话,有可能会损害机器的保护功能。
此外,因违反注意事项进行操作所产生的问题,本公司概不负责。
◆请避免接触裸导体。
否则可能会导致短路事故或触电。
◆ 请在相对于电路电压具有适当绝缘性的绝缘电线位置上进行测量。
◆ 机器潮湿,或用湿手测定的话,会发生触电事故,请注意。
◆ 最大测量电流因频率而异,作为降低额定值的措施,限制可连续测量的电流。
请勿测量超出额定值降低幅度的电流。
如果测量,则可能会因为传感器发热而导致故障,火灾与烫伤等。
在错误操作的情况下,用户有受伤的威胁,为避免此类危险,记载了相关的注意事项。
该符号表示对人体和机器有危害,必须参照说明书操作。
记载着使用该机器时的重要说明。
错误操作时,用户有受轻伤和物质损害的可能,为避免此类情况,记载的注意事项。
BE R TE K◆ 请勿使钳口顶端部分夹入异物,否则可能会导致传感器特性降低或者开关动作不良。
◆ 在切断连接仪器电源的情况下,请勿向本设备输入电流,否则可能会导致本仪器损坏。
◆ 为了不损坏电线的外皮,请不要踩踏或者夹住电线。
◆ 请勿在打开钳口部分的状态下触摸芯体部分,如果芯体部分静电放电,则可能会损坏本设备。
◆ 不使用时请关闭钳口,如果长期打开,钳口接触面会附着灰尘,可能会造成测量误差。
◆ 要拔出输出连接器时,请务必在解除锁定后拔出,如果强行拔拉电线,则会造成连接器损坏。
◆ 在0℃以下的环境下使用,电缆会变硬。
如果在这种状态下弯曲或者拉拽电缆,则可能会导致电缆外皮损坏或者断线。
1-DCL | SERIESFeatures• R atings from 7 A to 40 A @ 200 VDC and from7 A to 10 A @ 500VDC • Mosfet Output• UL Approved, CE Compliant to EN60950-1• Improved SEMS screw and washer• Redesigned housing with anti-rotation barriers • DC control• EMC Compliant to Level 3• Epoxy Free DesignPRODUCT SELECTIONOUTPUT SPECIFICATIONS 2INPUT SPECIFICATIONS2GENERAL SPECIFICATIONS 2WIRING DIAGRAM*Inductive loads must be diode suppressed.EQUIVALENT CIRCUIT BLOCK DIAGRAMS-DC +DC-DC+DCInput Current vs Input Voltage Standard Regulated “DC” InputsI n p u t C u r r e n t (m A )DC Input VoltageMECHANICAL SPECIFICATIONS2(2 places)Tolerances: ±0.02 in / 0.5 mm All dimensions are in: inches [millimeters]Screw TerminationHex Standoff Termination (“K” Option) 1S u r g e C u r r e n t (A m p )Surge Duration (msec )D2D07LS u r g eC u r r e n t (A m p )Surge Duration (msec )D2D40LS u r g e C u r r e n t (A m p )Surge Duration (msec )D4D12LS u r g e C u r r e n t (A m p )D5D10LS u r g e C u r r e n t (A m p )Surge Duration (msec )D1D40LS u r g e C u r r e n t (A m p )Surge Duration (msec )S u r g e C u r r e n t (A m p )Surge Duration (msec )D1D20LS u r g e C u r r e n t (A m p )Surge Duration (msec )Duty Factor 10%Duty Factor 20%Duty Factor 50%For Pulse Wide Modulation applications selectthe curve according duty factor and pulse duration as following.(i) for Single Surge Pulse Tc=40°C ;Tj 175°C(ii) for Repetitive Surge Pulse Tc=40°C ;Tj 130°CDuty Factor=Pulse Wide Periodx100 (%)S u r g e C u r r e n t (A m p )Surge Duration (msec )D2D12LS u r g e C u r r e n t (A m p )Surge Duration (msec )D4D07LS u r g e C u r r e n t (A m p )Surge Duration (msec )D5D07L(iii) SSR metal base plate acting as heat sink, it must be exposed to free ambient air.Ambient Temperature (ºC)D1D07L5°C/WNo Heat Sink(iii)D1D12L3°C/W5°C/WNo Heat Sink(iii)Ambient Temperature (ºC)D1D20L2°C/W3°C/WNo Heat Sink(iii)Ambient Temperature (ºC)D1D40L1°C/W3°C/W5°C/WAmbient Temperature (ºC)D2D07L3°C/W5°C/WNo Heat Sink(iii)Ambient Temperature (ºC)D2D12L3°C/W5°C/WNo Heat Sink(iii)Ambient Temperature (ºC)D2D40L0.7°C/W1.5°C/W5°C/WAmbient Temperature (ºC)D4D12L1°C/W2°C/W5ºC/WAmbient Temperature (ºC)D4D07L2°C/W3°C/WNo Heat Sink(iii)Ambient Temperature (ºC)D5D07L1°C/W3°C/W5ºC/WAmbient Temperature (ºC)D5D10LAmbient Temperature (ºC)0.7°C/W2°C/W5°C/WACCESSORIESAVAILABLE OPTIONSNot all part number combinations are available.Contact Crydom Technical Support for information on the availability of a specific part number. Array * Required for valid part number**For options only and not required for valid part numberPage 8CONTACT USAmericas+1 (877) 502 5500************************Europe, Middle East & Africa +44 (1202) 416170***********************Asia Pacific*************************.com China +86 (21) 2306 1500Japan +81 (45) 277 7117Korea +82 (31) 601 2004India +91 (80) 67920890Rest of Asia +886 (2) 27602006 ext 2808Sensata Technologies, Inc. (“Sensata”) data sheets are solely intended to assist designers (“Buyers”) who are developing systems that incorporate Sensata products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, evaluation and judgment in designing Buyer’s systems and products. Sensata data sheets have been created using standard laboratory conditions and engineering practices. Sensata has not conducted any testing other than that specifically described in the published documentation for a particular data sheet. Sensata may make corrections, enhancements, improvements and other changes to its data sheets or components without notice.Buyers are authorized to use Sensata data sheets with the Sensata component(s) identified in each particular data sheet. HOWEVER, NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER SENSATA INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY THIRD PARTY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT, IS GRANTED HEREIN. SENSATA DATA SHEETS ARE PROVIDED “AS IS”. SENSATA MAKES NO WARRANTIES OR REPRESENTATIONS WITH REGARD TO THE DATA SHEETS OR USE OF THE DATA SHEETS, EXPRESS, IMPLIED OR STATUTORY, INCLUDING ACCURACY OR COMPLETENESS. SENSATA DISCLAIMS ANY WARRANTY OF TITLE AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT, QUIET POSSESSION, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS WITH REGARD TO SENSATA DATA SHEETS OR USE THEREOF.All products are sold subject to Sensata’s terms and conditions of sale supplied at SENSATA ASSUMES NO LIABILITY FOR APPLICATIONS ASSISTANCE OR THE DESIGN OF BUYERS’ PRODUCTS. BUYER ACKNOWLEDGES AND AGREES THAT IT IS SOLELY RESPONSIBLE FOR COMPLIANCE WITH ALL LEGAL, REGULATORY AND SAFETY-RELATED REQUIREMENTS CONCERNING ITS PRODUCTS, WARNINGS(1)Option “K” is designed and tested for use with printed circuit boards or ring/fork terminals having a thickness between 0.031 and 0.093 inches (0.79 to 2.36 mm).(2)All parameters at Tc=25°C unless otherwise specified.(3)Heat sinking required, see derating curves. (4)Low current loads and high ambient temperature can affect turn-on time.(5)8VDC Minimum control voltage. Resistive loads only. Consider switching losses; at maximum frequency reduce to 75% output current.(6)Increase minimum voltage by 1V for operations from -20 to -40°C.(7)Decrease maximum control voltage 1.35V/°C above 80°C ambient temperature.(8) A ll parameters at 50% power rating and 100% duty cycle (contact Crydom tech support for detailed report).For additional information or specific questions, contact Crydom Technical SupportGENERAL NOTESAGENCY APPROVALS & CERTIFICATIONSEN60950-1: Meets the requirements of sections1.5: 1,7: 2.9: 2.10.5.3: 4.2: 4.5: 4.7:IEC 61000-4-2 Electrostatic Discharge Level 3IEC 61000-4-4 Electrically Fast Transients Level 3IEC 61000-4-5 Electrical Surges Level 3E116950RISK OF MATERIAL DAMAGE AND HOT ENCLOSURE• The product’s side panels may be hot, allow the product to cool before touching • Follow proper mounting instructions including torque values • Do not allow liquids or foreign objects to enter this productFailure to follow these instructions can result in serious injury, or equipment damage.HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH• Disconnect all power before installing or working with this equipment • Verify all connections and replace all covers before turning on powerFailure to follow these instructions will result in death or serious injury.。
高精度电流传感器规格书AIT1000-SG深圳市航智精密电子有限公司AIT1000-SG 高精度电流传感器多点零磁通技术系统应用于现有高精度直流传感器技术之上,激励磁通闭环控制技术、自激磁通门技术及多闭环控制技术相结合,实现了对激励磁通、直流磁通、交流磁通的零磁通闭环控制,并通过构建高频纹波感应通道实现了对高频纹波的检测,从而使传感器在全带宽范围内拥有比较高的增益和测量精度。
产品图片核心技术性能特点◇激励磁通闭环控制技术◇原、副边隔离测量◇自激退磁技术◇出色的线性度和准确度◇多点零磁通技术◇极低的温漂◇多级量程自动切换技术◇极低的零漂◇温控补偿技术◇强抗电磁干扰能力◇宽频带和低响应时间应用领域◇医疗设备:扫描仪、MRI ◇轨道交通:高速列车、地铁、有轨无轨电车◇电力:变流器、逆变器◇测试仪器仪表:功率分析仪、高精密电源◇新能源:光伏、风能◇汽车:电动汽车◇舰船:电力驱动舰船◇航空航天:卫星、火箭◇计量:检定与校准◇智能电网测量:发电、电池监测、中低压变电站◇工业控制:工业电机驱动、焊接、机器人、吊车、电梯、滑雪升降机电气性能项目符号测试条件最小值标称最大值单位原边额定直流电流I PN_DC— — ±1000 — Adc 原边额定交流电流*I PN— — 707 — Aac 原边过载电流I PM1分钟— — ±1300 Adc 工作电压V C— ±14.2 ±15 ±15.8 V 功耗电流I PWR原边额定电流±30 ±700 ±830 mA 电流变比K N输入:输出1500:1 1500:1 1500:1 — 额定输出电流I SN原边额定电流— ±0.67 — A 测量电阻R M见图1 0 1.5 3 Ω*:指交流有效值精度测量项目符号测试条件最小值标称最大值单位准确度X G输入直流,25±10ºC — — 10 ppm 线性度εL— — — 2 ppm 温度稳定性T C— — — 0.1 ppm/K 时间稳定性T T— — — 0.2 ppm/month 供电抗干扰T V— — — 1 ppm/V 零点失调电流I O@25ºC — — 1(用户可调零)ppm 纹波电流I N DC-10Hz — — 0.5 ppm动态响应时间t r di/dt=100A/us,上升至90%I PN— — 1 us 电流变化率di/dt — 200 — — A/us频带宽度(-3dB) F — 0 — 500 kHz零点失调电流I OT全温度范围— — ±5 μA安全特性项目符号测试条件数值单位隔离电压/ 原边与副边之间Vd 50Hz,1min 5 KV瞬态隔离耐压/ 原边与副边之间Vw 50us 10 KV爬电距离/ 原边与外壳之间dCp — 11 mm电气间隙距离/ 原边与外壳之间dCi — 11 mm 相比漏电起痕指数CTI IEC-60112 600 V一般特性项目符号测试条件最小标称最大单位工作温度范围T A—-40—+85ºC 质量M—1250±20g负载电阻使用说明图1:负载电阻与测量电流关系图运行状态说明◇正常运行时,绿灯常亮:设备上电后,当设备正常工作时,绿色指示灯常亮,D-Sub9接口的第3脚和第8脚导通。
General DescriptionThe MAX4172 is a low-cost, precision, high-side current-sense amplifier for portable PCs, telephones, and other systems where battery/DC power-line monitoring is critical. High-side power-line monitoring is especially useful in battery-powered systems, since it does not interfere with the battery charger’s ground path. Wide bandwidth and ground-sensing capability make the device suitable for closed-loop battery-charger and general-purpose current-source applications. The 0 to 32V input common-mode range is independent of the supply voltage, which ensures that current-sense feedback remains viable, even when connected to a battery in deep discharge.T o provide a high level of flexibility, the MAX4172 functions with an external sense resistor to set the range of load current to be monitored. It has a current output that can be converted to a ground-referred voltage with a single resistor, accommodating a wide range of battery voltages and currents.An open-collector power-good output (PG ) indicates when the supply voltage reaches an adequate level to guarantee proper operation of the current-sense amplifier. The MAX4172 operates with a 3.0V to 32V supply voltage, and is available in a space-saving, 8-pin μMAX ® or SO package.Applications●Portable PCs: Notebooks/Subnotebooks/Palmtops ●Battery-Powered/Portable Equipment●Closed-Loop Battery Chargers/Current Sources ●Smart-Battery Packs ●Portable/Cellular Phones●Portable Test/Measurement Systems●Energy Management SystemsBenefits and Features●Ideal for High-Side Monitoring• 3V to 32V Supply Operation• ±0.5% Typical Full-Scale Accuracy Over T emperature • High Accuracy +2V to +32V Common-Mode Range, Functional Down to 0V, Independent of Supply Voltage• 800kHz Bandwidth [V SENSE = 100mV (1C)]• 200kHz Bandwidth [V SENSE = 6.25mV (C/16)] ●Minimizes Board Space Requirements• μMAX and SO Packages19-1184; Rev 5; 12/20μMAX is a registered trademark of Maxim Integrated Products, Inc.Click here to ask about the production status of specific part numbers.+Denotes a lead(Pb)-free/RoHS-compliant package.Ordering InformationTypical Operating CircuitPin ConfigurationPART TEMP RANGE PIN-PACKAGE MAX4172ESA+-40°C to +85°C 8 SO MAX4172EUA+-40°C to +85°C 8 μMAX MAX4172GUA+-40°C to +105°C8 µMAXMAX4172Low-Cost, Precision, High-SideCurrent-Sense AmplifierV+, RS+, RS-, PG .................................................-0.3V to +36V OUT .............................................................-0.3V to (V+ + 0.3V)Differential Input Voltage, V RS+ - V RS- ..........................±700mV Current into Any Pin .........................................................±50mA Continuous Power Dissipation (T A = +70°C)SO (derate 5.88mW/°C above +70°C) ........................471mW μMAX (derate 4.10mW/°C above +70°C) ...................330mWOperating Temperature RangeMAX4172E_A .................................................-40°C to +85°C MAX4172G_A ...............................................-40°C to +105°C Storage Temperature Range ............................-65°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C Soldering Temperature (reflow) .......................................+260°C(V+ = +3V to +32V; V RS+, V RS- = 0 to 32V; T A = T MIN to T MAX ; unless otherwise noted. Typical values are at V+ = +12V, V RS+ = 12V, T A = +25°C.)Absolute Maximum RatingsStresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Electrical CharacteristicsPARAMETER SYMBOLCONDITIONSMIN TYPMAX UNITS Operating Voltage Range V+332V Input Voltage Range V RS-0032V Supply Current I V+I OUT = 0mA0.8 1.6mAInput Offset VoltageV OS V+ = 12V, V RS+ = 12V MAX4172ESA ±0.1±0.75mV MAX4172EUA±0.2±1.6V RS+ ≤ 2.0V4Positive Input Bias Current I RS+V RS+ > 2.0V, I OUT = 0mA 02742.5µA V RS+ ≤ 2.0V, I OUT = 0mA -325+42.5Negative Input Bias CurrentI RS-V RS+ > 2.0V 05085µA V RS+ ≤ 2.0V-65085Maximum V SENSE Voltage 150175mV Low-Level Current ErrorV SENSE = 6.25mV, V+ = 12V,V RS+ = 12V (Note 1)MAX4172ESA ±8.0µAMAX4172EUA ±15Output Current ErrorV SENSE = 100mV, V+ = 12V,V RS+ = 12VMAX4172ESA, T A = -40°C to 0°C±20µAMAX4172EUA,T A = -40°C to 0°C ±50MAX4172ESA,T A = 0°C to +105°C ±10MAX4172EUA,T A = 0°C to +105°C±15OUT Power-Supply Rejection Ratio ΔI OUT /ΔV+3V ≤ V+ ≤ 32V, V RS+ > 2.0V0.2μA/V OUT Common-Mode Rejection RatioΔI OUT /ΔV RS+ 2.0V < V RS+ < 32V0.03μA/VCurrent-Sense Amplifier(V+ = +3V to +32V; V RS+, V RS- = 0 to 32V; T A = T MIN to T MAX ; unless otherwise noted. Typical values are at V+ = +12V, V RS+ = 12V, T A = +25°C.)Note 1: 6.25mV = 1/16 of typical full-scale sense voltage (C/16).Note 2: Valid operation of the MAX4172 is guaranteed by design when PG is low.(V+ = +12V, V RS+ = 12V, R OUT = 1kΩ, T A = +25°C, unless otherwise noted.)Electrical Characteristics (continued)Typical Operating Characteristics1.00.9010OUTPUT ERROR vs. SUPPLY VOLTAGE0.30.40.20.10.80.7V+ (V)E R R O R (%)20300.60.54086-610C/16 LOAD OUTPUT ERROR vs. SUPPLY VOLTAGE-4-242V+ (V)E R R O R (%)2030040105095045010SUPPLY CURRENT vs. SUPPLY VOLTAGE650550850V+ (V)Q U I E S C E N T S U P P L Y C U R R E N T (μA )203075040PARAMETER SYMBOLCONDITIONSMINTYPMAX UNITS Maximum Output Voltage (OUT)I OUT ≤ 1.5mA V+ - 1.2V BandwidthV SENSE = 100mV800kHz V SENSE = 6.25mV (Note 1)200Maximum Output Current I OUT 1.5 1.75mA Transconductance G mG m = I OUT /(V RS+ - V RS-),V SENSE = 100mV , V RS+ > 2.0V T A = 0°C to +105°C 9.81010.2mA/V T A = -40°C to 0°C 9.71010.3V+ Threshold for PG Output Low (Note 2)V+ rising 2.77V V+ falling2.67PG Output Low Voltage V OL I SINK = 1.2mA, V+ = 2.9V, T A = +25°C 0.4V Leakage Current into PG V+ = 2.5V, T A = +25°C 1µA Power-Off Input Leakage Current (RS+, RS-)V+ = 0V, V RS+ = V RS- = 32V 0.11µA OUT Rise Time V SENSE = 0 to 100mV, 10% to 90%400ns OUT Fall TimeV SENSE = 100mV to 0mV, 90% to 10%800ns OUT Settling Time to 1%V SENSE = 5mV to 100mV Rising 1.3µs Falling6OUT Output ResistanceV SENSE = 150mV20MΩCurrent-Sense Amplifier(V+ = +12V, V RS+ = 12V, R OUT = 1kΩ, T A = +25°C, unless otherwise noted.)Typical Operating Characteristics (continued)40-50.1m10m 100m1m1ERROR vs. SENSE VOLTAGE0M A X 4172-04V SENSE (V)E R R O R (%)1051520253035350.010.11101001000POWER-SUPPLY REJECTION RATIOvs. FREQUENCY5POWER-SUPPLY FREQUENCY (kHz)E R R O R (%)151********.00.6-1.80842832OUTPUT ERRORvs. COMMON MODE VOLTAGE-1.4-1.00.2-0.2V+ (V)O U T P U T E R R O R (%)121620-0.6242.982.882.38-50-250125V+ THRESHOLD FOR PG OUTPUT LOWvs. TEMPERATURE2.782.682.582.48M A X 4172-07TEMPERATURE (°C)V + T R I P T H R E S H O L D (V )25507510010µs/div0 to 10mV V SENSE TRANSIENT RESPONSEGNDV SENSE 5mV/divV OUT 50mV/divGNDMAX4172-0810µs/div0 to 100mV V SENSE TRANSIENT RESPONSEGNDV SENSE 50mV/divV OUT 500mV/divGNDMAX4172-09Current-Sense Amplifier(V+ = +12V, V RS+ = 12V, R OUT = 1kΩ, T A = +25°C, unless otherwise noted.)Detailed DescriptionThe MAX4172 is a unidirectional, high-side current-sense amplifier with an input common-mode range that is independent of supply voltage. This feature not only allows the monitoring of current flow into a battery in deep discharge, but also enables high-side current sensing at voltages far in excess of the supply voltage (V+).The MAX4172 current-sense amplifier’s unique topology simplifies current monitoring and control. The MAX4172’s amplifier operates as shown in Figure 1. The battery/load current flows through the external sense resistor(R SENSE ), from the RS+ node to the RSnode. Current flows through R G1 and Q1, and into the current mirror, where it is multiplied by a factor of 50 before appearing at OUT.To analyze the circuit of Figure 1, assume that current flows from RS+ to RS-, and that OUT is connected to GND through a resistor. Since A1’s inverting input is high impedance, no current flows though R G2 (neglecting the input bias current), so A1’s negative input is equal to V SOURCE - (I LOAD x R SENSE ). A1’s open-loop gain forces its positive input to essentially the same voltage level as the negative input. Therefore, the drop across R G1 equalsPin DescriptionTypical Operating Characteristics (continued)5µs/divSTARTUP DELAYGNDV OUT 500mV/divV+2V/divGNDV SENSE = 100mVMAX4172-1010ms/divV+ to PG POWER-UP DELAYGNDPG 2V/divV+2V/divGND100kW PULLUP RESISTOR FROM PG TO +4VMAX4172-11PIN NAME FUNCTION1RS+Power connection to the external sense resistor. The “+” indicates the direction of current flow.2RS-Load-side connection for the external sense resistor. The “-” indicates the direction of current flow.3, 4N.C.No Connect. No internal connection. Leave open or connect to GND.5GND Ground6OUT Current Output. OUT is proportional to the magnitude of the sense voltage (V RS+ - V RS-). A 1kΩresistor from OUT to ground will result in a voltage equal to 10V/V of sense voltage.7PG Power Good Open-Collector Logic Output. A low level indicates that V+ is sufficient to power the MAX4172, and adequate time has passed for power-on transients to settle out.8V+Supply Voltage Input for the MAX4172Current-Sense AmplifierI LOAD x R SENSE. Then, since I RG1 flows through R G1, I RG1 x R G1 = I LOAD x R SENSE. The internal current mirror multiplies I RG1 by a factor of 50 to give I OUT = 50 x I RG1. Substituting I OUT/50 for I RG1, (I OUT/50) x R G1 = I LOAD x R SENSE, or:I OUT = 50 x I LOAD x (R SENSE/R G1)The internal current gain of 50 and the factory-trimmed resistor R G1 combine to result in the device’s transcon-ductance (G m) of 10mA/V. G m is defined as being equal to I OUT/(V RS+ - V RS-). Since (V RS+ - V RS-) = I LOAD x R SENSE, the output current (I OUT) can be calculated with the following formula:I OUT = G m x (V RS+ - V RS-) =(10mA/V) x (I LOAD x R SENSE)Current OutputThe output voltage equation for the MAX4172 is given below:V OUT = (G m) x (R SENSE x R OUT x I LOAD)where V OUT = the desired full-scale output voltage, I LOAD equals the full-scale current being sensed, R SENSE equals the current-sense resistor, R OUT equals the voltage-setting resistor, and G m equals the device’s transconductance (10mA/V).The full-scale output voltage range can be set by changing the R OUT resistor value, but the output voltage must be no greater than V+ - 1.2V. The above equation can be modified to determine the R OUT required for a particular full-scale range:R OUT = (V OUT)/(I LOAD x R SENSE x G m)OUT is a high-impedance current source that can be integrated by connecting it to a capacitive load.PG OutputThe PG output is an open-collector logic output that indicates the status of the MAX4172’s V+ power supply. A logic low on the PG output indicates that V+ is sufficient to power the MAX4172. This level is temperature dependent (see Typical Operating Characteristics graphs), and is typically 2.7V at room temperature. The internal PG comparator has a 100mV (typ) hysteresis to prevent possible oscillations caused by repeated toggling of the PG output, making the device ideal for power-management systems lacking soft-start capability. An internal delay (15μs, typ) in the PG comparator allows adequate time for power-on transients to settle out. The PG status indicator greatly simplifies the design of closed-loop systems by ensuring that the components in the control loop have sufficient voltage to operate correctly. Applications InformationSuggested Component Valuesfor Various ApplicationsThe Typical Operating Circuit is useful in a wide variety of applications. Table 1 shows suggested component values and indicates the resulting scale factors for various applications required to sense currents from 100mA to 10A.Adjust the R SENSE value to monitor higher/lower current levels. Select R SENSE using the guidelines and formulas in the following section.Figure 1. Functional DiagramCurrent-Sense AmplifierSense Resistor, R SENSEChoose R SENSE based on the following criteria:● Voltage Loss: A high R SENSE value causes the power-source voltage to degrade through IR loss. For minimal voltage loss, use the lowest R SENSE value.● Accuracy: A high R SENSE value allows lower currents to be measured more accurately. This is because offsets become less significant when the sense voltage is larger. For best performance, select R SENSE to provide approximately 100mV of sense voltage for the full-scale current in each application.● Efficiency and Power Dissipation: At high current levels, the I 2R losses in R SENSE can be significant. Take this into consideration when choosing the resistor value and its power dissipation (wattage) rating. Also, the sense resistor’s value might drift if it is allowed to heat up excessively.● Inductance: Keep inductance low if I SENSE has a large high-frequency component. Wire-wound resis-tors have the highest inductance, while metal film is somewhat better. Low-inductance metal-film resistors are also available. Instead of being spiral wrapped around a core, as in metal-film or wirewound resistors, they are a straight band of metal and are available in values under 1Ω.● Cost: If the cost of R SENSE is an issue, you might want to use an alternative solution, as shown in Figure 2. This solution uses the PCB traces to create a sense resistor. Because of the inaccuracies of the copper resistor, the full-scale current value must be adjusted with a potentiometer. Also, copper’s resistance temperature coefficient is fairly high (approximately 0.4%/°C).In Figure 2, assume that the load current to be measured is 10A, and that you have determined a 0.3-inchwide, 2-ounce copper to be appropriate. The resistivity of 0.1-inch-wide, 2-ounce (70μm thickness) copper is 30mΩ/ft. For 10A, you might want R SENSE = 5mΩ for a 50mV drop at full scale. This resistor requires about 2 inches of 0.1-inch-wide copper trace.Current-Sense Adjustment(Resistor Range, Output Adjust)Choose R OUT after selecting R SENSE . Choose R OUT to obtain the full-scale voltage you require, given the full-scale I OUT determined by R SENSE . OUT’s high impedance permits using R OUT values up to 200kΩ with minimal error. OUT’s load impedance (e.g., the input of an op amp or ADC) must be much greater than R OUT (e.g., 100 x R OUT ) to avoid degrading measurement accuracy.High-Current MeasurementThe MAX4172 can achieve high-current measurements by using low-value sense resistors, which can be paralleled to further increase the current-sense limit. As an alternative, PCB traces can be adjusted over a wide range.Figure 2. MAX4172 Connections Showing Use of PC BoardTable 1. Suggested Component ValuesFULL-SCALE LOAD CURRENT(A)CURRENT-SENSERESISTOR,RSENSE (mΩ)OUTPUTRESISTOR, ROUT(kΩ)FULL-SCALE OUTPUTVOLTAGE, V OUT (V)SCALE FACTOR,V OUT /ISENSE (V/A)0.11000 3.48 3.4834.81100 3.48 3.48 3.48520 3.48 3.480.69610103.483.48.348Current-Sense AmplifierPower-Supply Bypassing and GroundingIn most applications, grounding the MAX4172 requires no special precautions. However, in high-current systems, large voltage drops can develop across the ground plane, which can add to or subtract from V OUT. Use a single-point star ground for the highest currentmeasurement accuracy. The MAX4172 requires no special bypassing and responds quickly to transient changes in line current. If the noise at OUT caused by these transients is a problem, you can place a 1μF capacitor at the OUT pin to ground. You can also place a large capacitor at the RS terminal (or load side of the MAX4172) to decouple the load, reducing the current transients. These capacitors are not required for MAX4172 operation or stability. The RS+ and RS- inputs can be filtered by placing a capacitor (e.g., 1μF) between them to average the sensed current.Chip Information SUBSTRATE CONNECTED TO GNDPackage InformationFor the latest package outline information and land patterns (footprints), go to /packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.PACKAGE TYPE PACKAGE CODE OUTLINE ND PATTERN NO.SO S8+421-004190-0096μMAX U8+121-003690-0092Current-Sense AmplifierRevision HistoryREVISION NUMBER REVISION DATEDESCRIPTIONPAGES CHANGED012/96Initial release—16/10Clarified 0 to 2V is not a high-accuracy range for the device, removed futureproduct reference, added lead-free options and soldering temperature 1, 2210/12Revised the Package Information 835/15Revised Benefits and Features section146/16Added G-temp grade for 105°C operation and updated Typical Operating Characteristics section1–4512/20Updated the Package Information table8Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.Current-Sense AmplifierFor pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https:///en/storefront/storefront.html.。
标题:ACS710KLATR规格书一、产品介绍ACS710KLATR是一款电流传感器芯片,广泛应用于工业控制、电力电子、电动车辆等领域。
该芯片采用先进的集成电路技术,具有高精度、低功耗、小尺寸等特点,能够准确测量电路中的电流信号,并输出相应的模拟电压信号。
二、技术参数1. 电流测量范围:±5A2. 工作电压范围:3V至5.5V3. 输出电压范围:0V至Vcc4. 工作温度范围:-40°C至+125°C5. 灵敏度:185mV/A6. 最大非零偏差:±0.1FS7. 隔离电压:1500Vrms8. 封装:SOIC-8三、性能特点1. 高精度:ACS710KLATR采用先进的磁感应原理,能够实现对电流信号的精准测量,测量精度高达0.1FS。
2. 宽工作电压范围:能够满足不同应用场景的电源要求,工作电压范围广泛,适用于各种工作环境。
3. 高隔离性能:芯片内部采用高性能隔离材料,能够有效隔离电气噪声,保证测量信号的稳定性和精准性。
4. 小尺寸:封装方式为SOIC-8,体积小巧,便于集成到各种设备中,不占用过多的空间。
5. 低功耗:运行电流低至1.5mA,节能环保,适用于电池供电设备。
四、应用领域1. 工业控制:ACS710KLATR可广泛应用于工业自动化、机器人、变频器等领域,实现对电流信号的高精度测量和控制。
2. 电力电子:在逆变器、变频器、电源等设备中,ACS710KLATR能够实现对电流信号的准确检测,保证设备的安全稳定运行。
3. 电动车辆:作为电动车辆电流检测模块,ACS710KLATR能够实现对电池充放电过程中的电流测量,保证电动车辆的充放电安全和性能稳定。
五、总结ACS710KLATR作为一款高性能的电流传感器芯片,具有精准、稳定、高隔离等特点,适用于工业控制、电力电子、电动车辆等领域。
其技术参数和性能特点均能满足各种应用要求,是一款性价比高的电流传感器芯片。
高精度电流传感器规格书
RIT 01
深圳市航智精密电子有限公司
RIT01 剩余电流传感器
多点零磁通技术系统应用于现有高精度直流传感器技术之上,激励磁通闭环控制技术、自激磁通门技术及多闭环控制技术相结合,实现了对激励磁通、直流磁通、交流磁通的零磁通闭环控制,并通过构建高频纹波感应通道实现了对高频纹波的检测,从而使传感器在全带宽范围内拥有比较高的增益和测量精度。
产品图片
核心技术性能特点
◇激励磁通闭环控制技术◇原、副边隔离测量
◇自激退磁技术◇出色的线性度和准确度
◇多点零磁通技术◇极低的温漂
◇多级量程自动切换技术◇极低的零漂
◇温控补偿技术◇强抗电磁干扰能力
◇宽频带和低响应时间
应用领域
◇工业控制◇医疗设备
◇铁路◇电力、电网
◇电测仪器仪表◇新能源
电气性能
项目符号测试条件最小值标称最大值单位原边额定电流I PN—0 0.1 — A 原边过载电流I P——200% I PN— A 工作电压V C—±14.2 ±15 ±15.8 V 功耗电流I PWR—±30 mA 输出电压V SN0 ±2 —V
精度测量
项目符号测试条件最小值标称最大值单位精准度X G输入直流,额定量程——0.2 % 线性度εL全范围——0.2 % 零点电压I OT全温度范围——±10 mV 反应时间t r上升至90%I PN—— 2 us 频带宽度(-3dB) F —0 —100 kHz
安全特性
项目符号测试条件数值单位隔离电压/ 原边与副边之间Vd 50Hz,1min 5 KV
瞬态隔离耐压/ 原边与副边之间Vw 50us 10 KV
爬电距离/ 原边与外壳之间dCp —11 mm
电气间隙距离/ 原边与外壳之间dCi —11 mm 相比漏电起痕指数CTI IEC-60112 275 V
一般特性
项目符号测试条件最小标称最大单位
工作温度范围T A—-40 —+85 ºC
存储温度范围T S—-55 —+95 ºC
相对湿度RH —20 80 —质量M ——350±10 —g
运行状态说明
◇正常运行时,绿灯常亮:
设备上电后,当设备正常工作时,绿色指示灯常亮,D-Sub9接口的第3脚和第8脚导通。
◇电流过载或供电异常时,绿灯闪烁:
当绿灯不亮时,应该首先检查传感器的供电电源是否正常。
在供电电源正常的情况下,如果绿色指示灯不停闪烁,说明电流传感器处于非零磁通状态。
此时若母线输入电流幅值超过传感器的规定量程,传感器进入过载工作模式,输出电流不再与输入电流信号成等比例。
当输入电流恢复到规定被测电流范围内后,传感器输出电流恢复正常,绿色指示灯常亮。
应用连接及说明
1.1凤凰端子引脚功能定义
引脚号1234
定义
+15V
Supply
-15V
Supply
U_Output GND
LIT系列传感器
测试说明:
原边有电流流过传感器圆孔后,从接口处直接输出一个电压,只需要用电压测量设备测量电压数值,再乘以转换系数,就可以得到原边电流I P:
I P=K N∗U OUTPUT
外形尺寸规格
单位:毫米(mm)。