Automotive shunt-based ±500A precision current sensing reference design

This shunt-based current sensor reference design provides an accuracy of Features:

• Accuracy of 0.2% FSR, over temperature (-40°C to 125°C)
• Suitable for ±500A, high/low-side current sensing
• Compensated for temperature and non-linearity (second order temperature and linearity compensation algorithm)
• Protection against harness faults (overvoltage, reverse polarity, input/output signal protection)
• Electromagnetic interference (EMI) protection

Parts Include:
INA240                  High/Low Side, Bi-Directional Zero-Drift Current Sense Amp w/ Enhanced PWM Rejection 
PGA400-Q1          Automotive Catalog Programmable Sensor Signal Conditioner w/ Microcontroller 
TPS709-Q1           150-mA, 30-V, Ultra-Low IQ, Wide Input LDO with Reverse Current Protection for Automotive 

Learn more by downloading the reference design below