INA240-Q1:具有增强型 PWM 抑制功能的汽车类、高/低侧、双向零漂移电流感测放大器

The INA240-Q1 device is an automotive-qualified, voltage-output, current-sense amplifier with enhanced PWM rejection that can sense drops across shunt resistors over a wide common-mode voltage range from –4 V to 80 V, independent of the supply voltage. The negative common-mode voltage allows the device to operate below ground, accommodating the flyback period of typical solenoid applications. Enhanced PWM rejection provides high levels of suppression for large common-mode transients (ΔV/Δt) in systems that use pulse width modulation (PWM) signals (such as motor drives and solenoid control systems). This feature allows for accurate current measurements without large transients and associated recovery ripple on the output voltage.

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 2.4 mA of supply current. Four fixed gains are available: 20 V/V, 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale. Grade 1 versions are specified over the extended operating temperature range (–40°C to +125°C) and are offered in an 8-pin TSSOP and 8-pin SOIC packages. Grade 0 versions are specified over the extended operating temperature range (–40°C to +150°C) and are offered in an 8-pin SOIC package.

This device operates from a single 2.7-V to 5.5-V power supply, drawing a maximum of 2.4 mA of supply current. Four fixed gains are available: 20 V/V, 50 V/V, 100 V/V, and 200 V/V. The low offset of the zero-drift architecture enables current sensing with maximum drops across the shunt as low as 10-mV full-scale. Grade 1 versions are specified over the extended operating temperature range (–40°C to +125°C) and are offered in an 8-pin TSSOP and 8-pin SOIC packages. Grade 0 versions are specified over the extended operating temperature range (–40°C to +150°C) and are offered in an 8-pin SOIC package.

Sampling

To request more information or pre-production samples, please email ina240requests@list.ti.com.

产品特性
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
    • Device Temperature Grade 0: –40°C to +150°C Ambient Operating Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C5
  • Device Temperature Grade 1: –40°C to +125°C Ambient Operating Temperature Range
  • Device Temperature Grade 0: –40°C to +150°C Ambient Operating Temperature Range
  • Device HBM ESD Classification Level H2
  • Device CDM ESD Classification Level C5
  • Enhanced PWM Rejection
  • Excellent CMRR:
    • 132-dB DC CMRR
    • 93-dB AC CMRR at 50 kHz
  • 132-dB DC CMRR
  • 93-dB AC CMRR at 50 kHz
  • Wide Common-Mode Range: –4 V to 80 V
  • Accuracy:
    • Gain Error: 0.20% (Maximum) With 2.5 ppm/°C (Maximum Drift)
    • Offset Voltage: ±25 µV (Maximum) With 250 nV/°C (Maximum Drift)
  • Gain Error: 0.20% (Maximum) With 2.5 ppm/°C (Maximum Drift)
  • Offset Voltage: ±25 µV (Maximum) With 250 nV/°C (Maximum Drift)
  • Available Gains:
    • INA240A1-Q1: 20 V/V
    • INA240A2-Q1: 50 V/V
    • INA240A3-Q1: 100 V/V
    • INA240A4-Q1: 200 V/V
  • INA240A1-Q1: 20 V/V
  • INA240A2-Q1: 50 V/V
  • INA240A3-Q1: 100 V/V
  • INA240A4-Q1: 200 V/V
参数parametrics
参数INA240-Q1
Common Mode Voltage (Max) (V)80
Common Mode Voltage (Min) (V)-4
Input Offset (+/-) (Max) (uV)25
Input Offset Drift (+/-) (Typ) (uV/C)0.05
Gain (V/V)20 50 100 200
Gain Error (%)0.2
CMRR (Min) (dB)120
Bandwidth (kHz)400
Supply Voltage (Max) (V)5.5
Supply Voltage (Min) (V)2.7
Iq (Max) (mA)2.6
Special FeaturesBi-directional Enhanced PWM Rejection Low-side Capable
RatingAutomotive
Operating Temperature Range (C)-40 to 125
Package GroupTSSOP
Package Size: mm2:W x L (PKG)8TSSOP: 19 mm2: 6.4 x 3(TSSOP)
数据表 (1)
标题类型大小 (KB)日期
INA240-Q1 Automotive, Wide Common-Mode Range, High- and Low-Side, Bidirectional, Zero-Drift, Current-Sense Amplifier With Enhanced PWM RejectionPDF9932016年 12月 20日
应用手册 (18)
标题类型大小 (KB)日期
高压电源轨的精密电流测量PDF2342016年 11月 28日
测量电流以检测超限条件PDF2232016年 11月 28日
集成电流感测电阻PDF2482016年 11月 23日
高精度低侧电流测量PDF2612016年 11月 23日
适用于三相系统的低漂移低侧电流测量PDF2422016年 11月 23日
监测电流以识别多种超出范围的条件PDF2832016年 11月 22日
所选封装材料的热学和电学性质PDF6452008年 10月 16日
Integrating a Current Sense Resistor With a Current Sense AmplifierPDF1102016年 12月 2日
Precision, Low-Side Current MeasurementPDF1212016年 12月 2日
Measuring Current to Handle Multiple Out-of-Range ConditionsPDF1432016年 12月 2日
Precision Current Measurements on High Voltage Power Supply RailsPDF1002016年 12月 2日
Overcurrent and Out-of-Range ProtectionsPDF902016年 12月 2日
Bidirectional, Low-Side Phase Current Sensing With Onboard Overcurrent DetectionPDF1792016年 12月 2日
Low-Drift, Low-Side Current Measurements for Three-Phase SystemsPDF1092016年 12月 1日
High-Side DC Motor Current ProtectionPDF1142016年 12月 1日
High-Side Drive, High-Side Solenoid Monitor With PWM RejectionPDF1192016年 12月 1日
Low-Drift, Precision, In-Line Motor Current Measurements with PWM RejectionPDF1502016年 12月 1日
Current Sensing for Inline Motor-Control ApplicationsPDF2652016年 10月 20日
用户指南 (1)
标题类型大小 (KB)日期
INA240 EVM User's GuidePDF4502016年 7月 22日
选择与解决方案指南 (1)
标题类型大小 (KB)日期
Current Sense AmplifiersPDF11252016年 4月 11日
设计套件与评估板 (1)
培训内容型号类型
用于 PWM 应用评估模块的高侧或低侧电流感测放大器INA240EVM评估模块和开发板
开发工具 (1)
培训内容型号类型
基于 SPICE 的模拟仿真程序TINA-TI电路设计和仿真
订购型号
型号试生产 / 生产材料状态温度(oC)价格(美元) | Quantity封装 | 引脚封装数量 | 载体
INA240A1QPWRQ1生产PREVIEW-40 to 125联系BDTICTSSOP (PW)2000 | LARGE T&R
INA240A2QPWRQ1生产PREVIEW-40 to 125联系BDTICTSSOP (PW)2000 | LARGE T&R
INA240A3QPWRQ1生产PREVIEW-40 to 125联系BDTICTSSOP (PW)2000 | LARGE T&R
INA240A4QPWRQ1生产PREVIEW-40 to 125联系BDTICTSSOP (PW)2000 | LARGE T&R
INA240-Q1 Automotive, Wide Common-Mode Range, High- and Low-Side, Bidirectional, Zero-Drift, Current-Sense Amplifier With Enhanced PWM Rejection INA240-Q1
高压电源轨的精密电流测量 INA282-Q1
测量电流以检测超限条件 INA282-Q1
集成电流感测电阻 INA282-Q1
高精度低侧电流测量 INA282-Q1
适用于三相系统的低漂移低侧电流测量 INA300-Q1
监测电流以识别多种超出范围的条件 INA282-Q1
所选封装材料的热学和电学性质 DCP010505B
Integrating a Current Sense Resistor With a Current Sense Amplifier INA282-Q1
Precision, Low-Side Current Measurement INA282-Q1
Measuring Current to Handle Multiple Out-of-Range Conditions INA282-Q1
Precision Current Measurements on High Voltage Power Supply Rails INA282-Q1
Overcurrent and Out-of-Range Protections INA282-Q1
Bidirectional, Low-Side Phase Current Sensing With Onboard Overcurrent Detection INA300-Q1
Low-Drift, Low-Side Current Measurements for Three-Phase Systems INA300-Q1
High-Side DC Motor Current Protection LMP8640HV
High-Side Drive, High-Side Solenoid Monitor With PWM Rejection LMP8640HV
Low-Drift, Precision, In-Line Motor Current Measurements with PWM Rejection LMP8640HV
Current Sensing for Inline Motor-Control Applications INA240-Q1
INA240 EVM User's Guide INA240-Q1
Current Shunt Monitors (Rev. A) AMC1200