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bq27421-G1 Datasheet System-Side Impedance Track Fuel Gauge

Manufacturer: Texas Instruments

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General Description

The Texas Instruments bq27421-G1 fuel gauge is a minimally configured microcontroller peripheral that provides system-side fuel gauging for single-cell LiIon batteries.

The device requires very little user configuration and system microcontroller firmware development.

The bq27421-G1 fuel gauge uses the patented Impedance TrackTM algorithm for fuel gauging, and provides information such as remaining battery capacity (mAh), state-of-charge (%), and battery voltage (mV).

Overview

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community bq27421-G1 SLUSB85E – MAY 2013 – REVISED JANUARY 2016 bq27421-G1 System-Side Impedance Track™ Fuel Gauge With Integrated Sense.

Key Features

  • 1 Single-Cell Li-Ion Battery Fuel Gauge.
  • Resides on System Board.
  • Supports Embedded or Removable Batteries.
  • Powered Directly from Battery with Integrated LDO.
  • Low-Value Integrated Sense Resistor (7 mΩ, Typical).
  • Easy-to-Configure Fuel Gauging Based on Patented Impedance Track™ Technology.
  • Reports Remaining Capacity and State-ofCharge (SOC) with Smoothing Filter.
  • Automatically Adjusts for Battery Aging, SelfDischarge, Tempera.

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