SNOSDG3 December 2024 LM74681
PRODUCTION DATA
For the LM74681 to operate in reverse current protection mode, the gate driver must be enabled as described in Section 7.3.3 and the current of the external MOSFET must be flowing from the drain to the source. When the INx to OUTP voltage is typically less than VREV, reverse current protection mode is entered and the FET gates is internally connected to the source. This connection of the TGx to INx pin disables the external MOSFET. The body diode of the MOSFET blocks any reverse current from flowing from the drain to source.