Microchip Spannungsüberwachung Niederspannungs-Überwachungsstromkreis mit Watchdog

The microchip microprocessor reset circuit MIC826 is a low-current, ultra-small, voltage supervisor with manual reset input, watchdog timer, and active-high and active-low push-pull outputs. The reset outputs are asserted and held when the supply voltage falls below the factory-programmed threshold voltage, when the /MR pin is pulled low, or if the watchdog times out. Reset is asserted for the reset timeout delay after the supply voltage increases above the rising threshold voltage or when manual reset input is asserted high. The microprocessor features an integrated pull-up resistor on the /MR. An active-low push-pull reset output (/RESET) and an active-high reset output (RESET) provide flexibility when interfacing with various microcontrollers, PMICs, or load switches. The watchdog input can be left unconnected for applications that do not require watchdog monitoring.

It is manual reset input
The reset timeout period 140ms (min.)
The watchdog timeout period 1,6s
Float watchdog timer input to disable watchdog timer
It is active-high and active-low push-pull outputs
Guaranteed reset output valid to VCC = 1V
Precision value is 1,8V to 5V power supply monitor