INA250A1QPWRQ1

The INA250-Q1 is an automotive-grade voltage-output, current-sensing amplifier series that integrates an internal precision shunt resistor. It can achieve high-precision current measurement over a common-mode voltage range of 0V to 36V, independent of the supply voltage. The INA250-Q1 series offers four levels of output voltage: 200mV/A, 500mV/A, 800mV/A, and 2V/A. The device has been fully tested and can provide a continuous current of up to 10A at a maximum temperature of +125°C. The INA250-Q1 device is powered by a single supply voltage of 2.7V to 36V, with a maximum supply current of 300μA. All gain versions of the INA250-Q1 are rated to operate within the extended operating temperature range (-40°C to +125°C) and are available in a thin shrink small-outline package (TSSOP)-16.

Applications

• Body Control Module
• DC/DC Converter
• Battery Management System
• Engine Control System
• Suspension System

Key features

• Automotive electronics applications, AEC-Q100 qualified:
• Device temperature grade 1: –40°C to +125°C ambient operating temperature range
• Device HBM ESD classification level 2
• Device CDM ESD classification level C5
• Integrated precision shunt resistor:
• Shunt resistor: 2mΩ
• Shunt resistor tolerance: 0.1% (maximum)
• 15A continuous current (–40°C to +85°C)
• Temperature coefficient from 0°C to +125°C: 10ppm/°C
• High accuracy:
• Gain error (shunt and amplifier): 0.3% (maximum)
• Offset current: 50mA (maximum, INA250A2-Q1)
• Four gain options:
• INA250A1-Q1: 200mV/A
• INA250A2-Q1: 500mV/A
• INA250A3-Q1: 800mV/A
• INA250A4-Q1: 2V/A