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DS2788 Datasheet Stand-alone Fuel-gauge

Manufacturer: Maxim Integrated (now Analog Devices)

Overview: DS2788 19-4639; Rev 2; 5/09 Stand-Alone Fuel-Gauge IC with LED Display Drivers.

General Description

The DS2788 measures voltage, temperature, and current, and estimates available capacity for rechargeable lithium-ion (Li+) and Li+ polymer batteries.

Cell characteristics and application parameters used in the calculations are stored in on-chip EEPROM.

The available capacity registers report a conservative estimate of the amount of charge that can be removed given the current temperature, discharge rate, stored charge, and application parameters.

Key Features

  • Five 30mA Open-Drain Drivers for Driving LED Fuel-Gauge Display.
  • Debounced Fuel-Gauge Display Enable.
  • Internal Voltage Measurement Gain Register for Trimming External Voltage-Divider.
  • Pin for Driving FETs to Enable Voltage-Divider Only During Voltage Measurement, Conserving Power.
  • Precision Voltage, Temperature, and Current Measurement System.
  • Accurate, Temperature-Stable, Internal Time Base.
  • Absolute and Relative Capacity Estimated.

DS2788 Distributor

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