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PC Power Fail and Reset Controller

Product Details

Key Features

Simplified Block Diagram

Technical Docs

Data Sheet PC Power Fail and Reset Controller Jun 03, 2003

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Key Features

  • Power-fail detect circuitry
  • Pushbutton reset
  • Reset pulse width of either 95ms or 190ms
  • Active high and low resets
  • Accurate 5% or 10% +5-volt power supply monitoring
  • Battery switch
  • On-chip 32.768kHz crystal oscillator
  • Low battery warning
  • 5-volt operation
  • Thermal range: 0°C to +70°C

Applications/Uses

Description

The DS1632 PC Power-fail and Reset Controller contains internal circuitry to implement a 32.768kHz oscillator with the addition of only a 6pF 32.768kHz crystal. The DS1632 switches between a battery and the incoming supply, depending on which is greater, with a voltage drop of less than 0.2 volts. It provides resets for both power-up and pushbutton input with automatic resets during power transients. A precision comparator constantly monitors the main power and signals a power failure. The DS1632 also monitors battery power and signals a low-battery condition.

Power resets, low battery flags, and power-fail flags make the DS1632 a versatile system manager, with extremely low-power circuitry that conserves system resources in battery-backed applications.

Simplified Block Diagram

Technical Docs

Data Sheet PC Power Fail and Reset Controller Jun 03, 2003

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .