Power & Power Management

Overview

Description

The ISL21440 is a micropower, FGA reference, and comparator on a single chip. Drawing less than 6. 5μA supply current across the full operating temperature range, the ISL21440 operates from a single 2V to 11V supply and can also be used with split bipolar supplies. The ISL21440’s on-board reference provides a 1. 182V ±0. 5% output. It features programmable hysteresis and TTL/CMOS compatible outputs that sink and source current. Low bias currents permit high value divider resistors for typical circuit current drains of

Features

  • 6.5μA supply current across the full temperature range
  • Wide supply range: 2V to 11V
  • Precision 1.182V ±0.5% voltage reference
  • Comparator with user programmable hysteresis
  • Temperature range: -40°C to +125°C
  • 8 Ld MSOP and 8 Ld TDFN packages
  • Pin compatible upgrade to MAX921 and LTC1440

Applications

  • Low Battery Detector
  • Low Voltage Reset
  • Overvoltage Monitor
  • Window Comparator

Documentation

Design & Development

Software & Tools

Software Downloads

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Models

Support