SLUU182A January 2004 – March 2022 TPS5124
The overvoltage comparator circuit continually monitors the voltage at the INV pin. If VINV rises above 112% of the 0.85-V reference, the timer begins to charge C18. If the fault condition persists beyond the time tOVPL, the fault latch is set and the high-side drivers are forced OFF, while the low-side drivers are forced ON.