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bq28550 Datasheet Single Cell Li-Ion Battery Gas Gauge and Protection

Manufacturer: Texas Instruments

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General Description

The Texas Instruments bq28550 battery gas gauge provides current and voltage protection, and secure, SHA-1/HMAC authentication for single-cell Li-Ion battery packs.

Designed for battery-pack integration, the bq28550 requires host microcontroller firmware support for implementation.

A system processor communicates with the bq28550 using one of the serial interface configurations to obtain remaining battery capacity, system run-time predictions, and other critical battery information.

Overview

bq28550 www.ti.com SLUSAJ2 – SEPTEMBER 2011 bq28550 Single Cell Li-Ion Battery Gas Gauge and Protection Check for Samples:.

Key Features

  • 1.
  • A Comprehensive Single-Cell Li-Ion Battery Manager Integrates All Essential Functions.
  • Gas Gauge.
  • Low-Side N-CH FET Protection Control.
  • JEITA/Enhanced Charging.
  • Authentication.
  • Battery Gas Gauge Information.
  • Protection Functions Include:.
  • Short-Circuit.
  • Overcurrent Charge and Discharge.
  • Overvoltage Charge (Overcharge).
  • Undervoltage (Over-Discharge).
  • Firmware Control of Discharge FET.

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