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BM3451 Datasheet 3/4/5 Cell Battery Protectors

Manufacturer: BYD Microelectronics

Overview: BYD Microelectronics Co., Ltd. BM3451 Series 3/4/5 Cell Battery Protectors.

Datasheet Details

Part number BM3451
Manufacturer BYD Microelectronics
File Size 803.01 KB
Description 3/4/5 Cell Battery Protectors
Datasheet BM3451-BYDMicroelectronics.pdf

General Description

The BM3451 is a professional protection IC for 3/4/5 cells rechargeable battery pack;

it is highly integrated, and generally used in power tools, electric bicycles and UPS applications.

The BM3451 works constantly to monitor each cell’s voltage, the current of charge or discharge, and the temperature of the environment to provide overcharge, over-discharge, discharge overcurrent, short circuit, charge overcurrent and over-temperature protections, etc.

Key Features

  • (1) High-accuracy voltage detection for each cell.
  • overcharge threshold 3.6V~4.6V accuracy: ±25 mV (+25℃) accuracy: ±40 mV (-40℃ to +85℃).
  • overcharge hysteresis 0.1V accuracy: ±50 mV.
  • over-discharge threshold 1.6V~3.0V accuracy: ±80 mV.
  • over-discharge hysteresis 0V / 0.2V / 0.4V accuracy: ±100 mV (2) Three grades voltage detection of discharge overcurrent.
  • discharge overcurrent 1 0.025 V ~ 0.30 V (50 mV step).
  • discharge overcurrent 2 0.2 V / 0.3V / 0.4V.

More Datasheets from BYD Microelectronics

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