SLVSGZ1A May 2024 – July 2024 DRV8161 , DRV8162
ADVANCE INFORMATION
DRV8161 internally generates common mode voltage to enable bidirectional for current measurement. The current sense amplifier operates as bidirectional mode and the SO pin outputs an analog voltage equal to the voltage across the SP and SN pins multiplied by the gain setting (GCSA) plus the output bias voltage VVREF / 2 .
Use Equation 1 to calculate the current through the shunt resistor (CSAREF / 2 case) .