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BQ294502 Datasheet Overvoltage Protection

Manufacturer: Texas Instruments

General Description

The BQ2945xy family of products is a secondary-level voltage monitor and protector for Li-ion battery pack systems.

Each cell is monitored independently for an overvoltage condition.

Based on the configuration, an output is triggered after a fixed delay if any of the two or three cells has an overvoltage condition.

Overview

BQ294502, BQ294504, BQ294506, BQ294512, BQ294522 BQ294524, BQ294532, BQ294533, BQ294534, BQ294582, BQ294592 SLUSAJ3K – SEPTEMBER 2011 – REVISED AUGUST 2022 BQ2945xy Overvoltage Protection For 2-Series and 3-Series Cell.

Key Features

  • 2-series and 3-series cell overvoltage monitor for secondary protection.
  • Fixed programmable delay timer.
  • Fixed OVP threshold.
  • Available range from 3.85 V to 4.6 V.
  • Fixed OVP delay option: 4 s or 6.5 s.
  • High-accuracy overvoltage protection: ±10 mV.
  • Low power consumption ICC ≈ 1 µA (VCELL(ALL) <.