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BQ2971 Datasheet Cost-Effective Voltage/Current Protection

Manufacturer: Texas Instruments

Download the BQ2971 datasheet PDF. This datasheet also includes the BQ2970 variant, as both parts are published together in a single manufacturer document.

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Note: The manufacturer provides a single datasheet file (BQ2970-etcTI.pdf) that lists specifications for multiple related part numbers.

General Description

The BQ2970 battery cell protection device provides an accurate monitor and trigger threshold for overcurrent protection during high discharge/charge current operation or battery overcharge conditions.

The BQ2970 device provides the protection functions for Li-ion/Li-polymer cells, and monitors across the external power FETs for protection due to high charge or discharge currents.

In addition, there is overcharge and depleted battery monitoring and protection.

Overview

BQ2970, BQ2971, BQ2972, BQ2973 SLUSBU9H – MARCH 2014 – REVISED JUNE 2021 BQ297xx Cost-Effective Voltage and Current Protection Integrated Circuit for SingleCell Li-Ion and Li-Polymer Batteries.

Key Features

  • Input voltage range pack+: VSS.
  • 0.3 V to 12 V.
  • FET drive:.
  • CHG and DSG FET drive output.
  • Voltage sensing across external FETs for overcurrent protection (OCP) is within ±5 mV (typical).
  • Fault detection.
  • Overcharge detection (OVP).
  • Over-discharge detection (UVP).
  • Charge overcurrent detection (OCC).
  • Discharge overcurrent detection (OCD).
  • Load short-circuit detection (SCP).
  • Zero voltage char.

More Datasheets from Texas Instruments

Part Number Description
BQ2970 Cost-Effective Voltage/Current Protection
BQ2972 Cost-Effective Voltage/Current Protection
BQ2973 Cost-Effective Voltage/Current Protection
bq29200 Voltage Protection
bq29209 Voltage Protection
bq29209-Q1 Voltage Protection
bq29311 3- and 4-Cell Lithium-Ion or Lithium-Polymer Battery Protection
bq29312 3- and 4-Cell Lithium-Ion or Lithium-Polymer Battery Protection
bq29312A Lithium-Ion or Lithium-Polymer Battery Protection
bq29330 Lithium-Ion or Lithium-Polymer Battery Protection