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bq20z655 Datasheet SBS 1.1-COMPLIANT GAS GAUGE AND PROTECTION

Manufacturer: Texas Instruments

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General Description

The bq20z655 SBS-compliant gas gauge and protection IC, incorporating patented Impedance Track™ technology, is a single IC solution designed for battery-pack or in-system installation.

The bq20z655 measures and maintains an accurate record of available charge in Li-Ion or Li-Polymer batteries using its integrated high-performance analog peripherals.

The bq20z655 monitors capacity change, battery impedance, open-circuit voltage, and other critical parameters of the battery pack which reports the information to the system host controller over a serial-communication bus.

Overview

Not Recommended For New Designs bq20z655 www.ti.com SLUSAH8A – APRIL 2011 – REVISED MAY 2012 SBS 1.

Key Features

  • 1.
  • 2 Next Generation Patented Impedance Track™ Technology Accurately Measures Available Charge in Li-Ion and Li-Polymer Batteries.
  • Better Than 1% Error Over the Lifetime of the Battery.
  • Supports the Smart Battery Specification SBS V1.1.
  • Flexible Configuration for 2-Series to 4-Series Li-Ion and Li-Polymer Cells.
  • Powerful 8-Bit RISC CPU with Ultralow Power Modes.
  • Charge Enable (CE) Affects the Normal Operation on the Charge FET when the Battery.

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