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bq29312A Datasheet Lithium-ion Or Lithium-polymer Battery Protection

Manufacturer: Texas Instruments

Overview: www.ti.com PW RTH bq29312A SLUS629A – JANUARY 2005 – REVISED AUGUST 2005 TWO-CELL, THREE-CELL, AND FOUR-CELL LITHIUM-ION OR LITHIUM-POLYMER BATTERY PROTECTION.

General Description

The bq29312A is a 2-, 3-, or 4-cell lithium-ion battery pack protection analog front end (AFE) IC that incorporates a 3.3-V, 25-mA low-dropout regulator (LDO).

The bq29312A also integrates an I2C compatible interface to extract battery parameters such as cell voltages and control output status.

Other parameters such as current protection thresholds and delays can be programmed into the bq29312A to increase the flexibility of the battery management system.

Key Features

  • 2-, 3-, or 4-Cell Series Protection Control.
  • Can Directly Interface With the bq2084 Gas Gauges.
  • Provides Individual Cell Voltages and Battery Voltage to Battery Management Host.
  • Integrated Cell Balancing Drive.
  • I2C Compatible User Interface Allows Access to Battery Information.
  • Programmable Threshold and Delay for Overload and Short Circuit During Charge and Discharge.
  • System Alert Interrupt Output.
  • Host Control Can Initiat.

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