A highly integrated 4 to 10-cell battery front end ideal for industrial applications requiring safety, flexible operation, and low-side protection FETs. The RAA489220 monitors cell and battery voltages, temperatures, and current; supports both an auto-scan mode and programmed scan sequence, provides internal self and system checks, can respond to fault conditions autonomously, and includes other helpful features like a fuse blow, and load and charge detection.  For applications like power tools, vacuums, garden tools the RAA489220 is perfect compromise between cost, size and function.


  • VPACK voltages: 5V to 44V
  • Hot plug tolerance
  • Built-in low-side FET drivers
  • Charger/load presence detection
  • Cell open wire and system checks
  • Autonomous detection and actions
  • HVGPIO fuse blow configurable
  • Support for wide range of current-sense resistors




  • Power Tools
  • Garden Tools
  • Vacuums
  • Mobility
  • Robotics


Type Title Date
Datasheet PDF 1.77 MB
Brochure PDF 8.73 MB
Brochure PDF 5.49 MB 日本語
Brochure PDF 5.20 MB 日本語
Manual - Development Tools PDF 722 KB
Guide PDF 615 KB
Quick Start Guide PDF 728 KB
Brochure PDF 1.11 MB
8 items

Design & Development

Sample Code

Boards & Kits

Boards & Kits


RAA48920x Multi-Cell Battery Front End Family

An overview of how the Renesas multi-cell battery front devices streamline development for high-cell count, high-voltage systems with flexible cell balancing and lower system costs. Visit renesas.com/bfe for more details.