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BQ2946 Datasheet Single-Cell Protector

Manufacturer: Texas Instruments

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General Description

The BQ2946xx family of products is a secondary-level overvoltage monitor and protector for Li-Ion battery pack systems.

The cell is monitored for overvoltage condition and triggers an internal counter once the OVP threshold is exceeded;

after a fixed set delay, the out is transitioned to a high level.

Overview

BQ2946 SLUSAS0E – DECEMBER 2011 – REVISED APRIL 2021 BQ2946xx Single-Cell Protector for Li-Ion Batteries.

Key Features

  • Single-Cell Overvoltage Monitor for Secondary Protection.
  • Fixed Programmable Delay Timer.
  • Fixed Overvoltage Protection (OVP) Threshold.
  • Available Range of 3.85 V to 4.6 V.
  • Fixed OVP Delay Option: 4 s or 6.5 s.
  • High-Accuracy OVP: ± 10 mV.
  • Low Power Consumption ICC ≈ 1 µA (VCELL(ALL) <.

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