Battery pack: cordless power tool

Products and reference designs

Battery pack: cordless power tool

Block diagram

Overview

Our integrated circuits and reference designs help you create battery packs and chargers for cordless power tools with highly reliable battery management solutions (BMS) for monitoring, protecting, balancing and gauging.

Design requirements:

Modern battery packs for cordless power tools often require:

  • Accurate voltage and current sensing.
  • Voltage, temperature and current protection.
  • Low standby current and ultra-low shipment power consumption.
  • Capacity indication to accurately track battery charge status and predict available runtime.

Block diagram

Find products and reference designs for your system.

Technical documentation

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Type Title Date
More literature bq769x0 I2C Sample Code With CRC 14 Apr 2020
More literature bq76925 Example Code 14 Apr 2020
Application note bq769x0 BMS Configurations for Cordless Appliances 05 Apr 2019
Application note bq769x0 BMS Configurations for Cordless Appliances 05 Apr 2019
Application note bq769x0 Family Top 10 Design Considerations (Rev. A) PDF | HTML 05 Jul 2018
Application note BQ77905 Design Considerations in High-Current Applications 05 Dec 2016
Application note Bq77905 Using Multiple FETs 15 Jul 2016
Application note 3~6 Cells Battery Management System Based On BQ76925+MSP430G2xx2 26 Aug 2014
Analog Design Journal Cell balancing buys extra run time and battery life 17 Mar 2009

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