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DS1836A Datasheet 3.3v/5v Micromanager

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: www.maxim-ic.com DS1836/A/B/C/D 3.3V/5V MicroManager.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

VCC VBAT NC - Power Supply Input - Battery Supply Input - No Connect VOUT GND - Power Supply Output - Ground IN - Sense Input NMI - Non-maskable Interrupt RST (*RST) - Reset Output DESCRIPTION The DS1836 MicroManager performs three vital system functions.

First, a precision temperaturecompensated reference and comparator circuit monitor the status of the voltage on VCC and when an outof-tolerance condition is detected, an internal power-fail signal is generated that forces the reset active.

If VCC continues to degrade, it switches to the battery supply when VCC drops below 3.8V (2.6V for 3.3V versions).

Key Features

  • 5V or 3.3V power-on reset.
  • True 3V operation power switch.
  • Switches to battery at 3.8V (2.6V for 3.3V versions).
  • Excellent for systems designed to operate with dual power supplies.
  • Asserts resets during power transients.
  • Maintains reset for 350ms after VCC returns to an in-tolerance condition.
  • Reduces need for discrete components.
  • Precision temperature-compensated voltage reference and voltage sensor.
  • 8-pin DIP or space saving 8-pin SO surface mount.

DS1836A Distributor