SNOU187 September 2021
Q1 is a 60-V rated N-channel MOSFET capable to support 5-A automotive ECU applications. Q1 helps support reverse battery protection up to –33 V, reverse-current blocking and also dissipate the automotive ISO7637 pulse 1 transient during VDS clamp operation. By default, the Q2 FET is not populated and is bypassed by R1 resistor. In order to evaluate power path cut-off ON/OFF and over voltage cut-off functionalities, Q2 needs to be populated and R1 removed.