SNVSB66A July 2018 – October 2021 TPS3431
The TPS3431 features three options for setting the watchdog timeout: connecting a capacitor to the CWD pin, connecting a pull-up resistor to VDD, and leaving the CWD pin unconnected. Figure 8-1 shows a schematic drawing of all three options. If this pin is connected to VDD through a 10-kΩ pullup resistor or left unconnected (high impedance), then the factory-programmed watchdog timeouts are enabled; see the Section 188.8.131.52 section. Otherwise, the watchdog timeout can be adjusted by placing a capacitor from the CWD pin to ground.