IMP1832S - IMP Inc

IMP1832S 3.3V P Power Suppl Monitor and Reset Circuit

Pin Number 8-Pin Package 1 2 3 4 5 Name PBRST TD TOL GND RESET Function Debounced manual pushbutton reset input Watchdog time delay selection. (tTD = 150ms for TD = GND, tTD = 610ms for TD = Open, and tTD =1200ms for TD = VCC) Selects 10% (TOL connected to GND) or 20% (TOL connected to VCC) trip point tolerance Ground Active HIGH reset output. RESET is ac.

Features

x Pin compatible with the Dallas Semiconductor DS1832 — Over 40% lower supply current x 3.3V supply monitor x Push-pull output x Selectable watchdog period x Debounce manual push-button reset input x Precision temperature-compensated voltage reference and comparator x Power-up, power-down and brownout detection x 250ms minimum reset time x Active LOW and HIGH reset signal x Selectable trip point tolerance: 10% or 20% x Low-cost 8-pin DIP/SO and 8-pin MicroSO packages x Wide operating temperature
  – 40°C to +85°C
  – Selectable Trip -Point Tolerance and Watchdog Period
  – Push-Button Reset
  – Push-.