The TPS7H3xx4-SP is an integrated, 3V to 14V,
four-channel radiation-hardened power-supply supervisor with watchdog. An accurate 599.7mV ± 1% threshold
voltage and a 24µA ± 3%
hysteresis current provide programmable monitoring voltages. A global programmable delay
timer is programmed via a single resistor. Additionally, a PWRGD output is provided to
monitor the global power tree status. The device also incorporates a positive edge detection
watchdog timer to monitor an external processor for coherent execution. Faults can be
detected and mitigated by the external controller, using the SR_UVLO
input. The device is offered with push-pull and open-drain outputs types.