Renesas' lithium-ion battery management solution is built around a battery management IC that offers a low-power microcontroller and high-performance analog front end (AFE) in a single package, along with an evaluation board, sample code, and other tools to support the development of safe, secure, and high-performance lithium-ion batteries.

Target applications: Notebook and laptop computers, power tools, Cordless Vacuum, Motor-assisted bike, etc.

Li-ion Battery Management Solution


Safety Control: Enable high battery pack safety with multiple fail-safe detection functions

  • Built-in self-diagnostic functions using the integrated MCU and AFE.
  • Ultra-low power storage mode
  • Over/under voltage
  • Over-current
  • Over/under temperature
  • FET control during failure
  • Fuse blow


Capacity Calculation: Continuous high accuracy battery capacity detection

  • Delta-sigma Analog to Digital converter optimized for current, voltage, and temperature measurement.
  • Adjusts remaining capacity calculation dynamically for aged and deteriorated cells.
  • Capacity calculation with built-in learning
  • Current and voltage calibration functions
  • Battery history and record keeping function


Comprehensive development environment: Starter kits with EVB, Sample Code, and User Manual for easy evaluation and faster development

  • Evaluation Board : Evaluate the device performance and operating behavior; includes E1 connector for easy on-chip debugging.
  • Sample Code : Available sample program source code for all basic battery management functions.
  • Communication with PC via I2C Bus
  • GUI I/F displays the battery parameter status such as Voltage, Current and Temperature


For Starter Kit, contact your regional sales channel members.

System Block Diagram

System Block Diagram

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