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bq20z70 Datasheet Sbs 1.1-compliant Gas Gauge Enabled

Manufacturer: Texas Instruments

Overview: bq20z70 www.ti.com SLUS686B – NOVEMBER 2005 – REVISED JULY 2007 SBS 1.

General Description

The bq20z70 SBS-compliant gas gauge IC, incorporating patented Impedance Track™ technology, is designed for battery-pack or in-system installation.

The bq20z70 measures and maintains an accurate record of available charge in Li-ion or Li-polymer batteries using its integrated high-performance analog peripherals.

The bq20z70 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack, and reports the information to the system host controller over a serial-communication bus.

Key Features

  • Next Generation Patented Impedance Track™ Technology accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries.
  • Better than 1% Error Over Lifetime of the Battery.
  • Instant Accuracy.
  • No Learning Cycle Required.
  • Supports the Smart Battery Specification SBS V1.1.
  • Powerful 8-Bit RISC CPU With Ultra-Low Power Modes.
  • Works With the TI bq29330 Analog Front-End (AFE) Protection IC to Provide Complete Pack Electronics Solution.

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