When using PWM dimming, FAULT is easily cleared by the PWM falling edge. Even if the fault condition remains all the time, FAULT is discontinuous. To avoid this unexpected fault report behavior, the device implements fault report holding time. Figure 7-12 shows an issue that typically occurs during PWM dimming, the FAULT is cleared unexpectedly even when the short-to-GND still exists. The TPS1H200A-Q1 device with fault-report holding function allows the right behavior as shown in Figure 7-13.

Figure 7-12 Without Fault-Report Holding

Figure 7-13 With Fault-Report Holding