Battery pack: vacuum cleaner/robot

Products and reference designs

Battery pack: vacuum cleaner/robot

Block diagram

Overview

Our integrated circuits and reference designs help you create high reliability and low-power consumption battery pack management solutions with protection, monitoring, cell balancing, authentication and gauging for vacuum cleaners and vacuum robots.

Design requirements

Modern battery packs for vacuum cleaners and vacuum robots often require:

  • High reliability with voltage, current and temperature protection.
  • Accurate voltage and current sensing.
  • Low standby current and ultra-low shipment power consumption.

Explore applications similar in function and design

Block diagram

Find products and reference designs for your system.

Battery pack with AFE+MCU

Pack+ Pack+ Pack- Pack- Fuse Fuse Data Data …… …… Cell-balancing MOSFETs Cell-balancingMOSFETs Protector/monitor/ cell-balancing Protector/monitor/cell-balancing Temp sensor Temp sensor Monitor/AFE Monitor/AFE Secondary protector Secondary protector Opamp Opamp Battery management control unit Battery management control unit LDO LDO ESD protection ESD protection Authentication Authentication MCU MCU DC/DC DC/DC Pre-charge/charge/discharge Pre-charge/charge/discharge LV-MOSFET LV-MOSFET

Technical documentation

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Type Title Date
Application note bq769x0 boot switch alternatives 29 Jan 2016
Analog Design Journal Cell balancing buys extra run time and battery life 17 Mar 2009
Application note Gauge Communication 12 Jan 2017
Application note bq77905 Separate Current Paths (Rev. A) 07 Jul 2016
Application note bq769x0 Family Top 10 Design Considerations (Rev. A) PDF | HTML 05 Jul 2018
Application note bq769x0 BMS Configurations for Cordless Appliances 05 Apr 2019
Application note bq769x0 BMS Configurations for Cordless Appliances 05 Apr 2019

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