Renesas provides a comprehensive lineup of battery front-ends to cover all battery management system protection, monitoring and balancing requirements. Our battery front-end ICs meet the reliability and performance requirements of battery-powered applications including power tools, UPS systems, home appliances, and e-bikes. Our automotive-grade Li-ion BMS portfolio is designed to meet the performance requirements of next-generation hybrid electric vehicle (HEV), plug-in hybrid electric vehicle (PHEV) and electric vehicle (EV) applications.

Power & Power Management

Product Selection Table

    Processing table
    Part Number
    Cells Supported (#)
    Pack Voltage (Op)
    Cell Balancing FETs
    Integrated Current Sense/Detection
    Charge/Discharge FET Control
    Charge/Discharge FET Arrangement
    Charge/Discharge FET Location
    IS (mA)
    Sleep Mode Current (µA)
    Stand Alone Capable
    Internal ADC (bits)
    Daisy Chain
    GPI+GPIOs (#)
    Qualification Level
    Lead Count (#)
    Pkg. Type
    ISL94202
    Standalone 3 to 8 Cell Li-Ion Battery Pack Monitor    		 3 - 8 4 - 36 External (Built-in Drivers) High Side Yes Both High Side 0.348 13 State Machine 14 No 2 Standard 48 TQFN
    ISL94208
    4- to 6-Cell Li-ion Battery Management Analog Front-End    		 4 - 6 8 - 26.4 Both Low Side Yes Both Low Side 0.85 2 No None No 1 Standard 32 QFN
    ISL94212
    Multi-Cell Li-Ion Battery Manager    		 6 - 12 6 - 60 External (Built-in Drivers) None No N/A N/A 3.31 12 No 14 Yes 4 Standard 64 TQFP
    ISL94216A
    16-Cell Battery Front End    		 4 - 16 12 - 55 Both Low Side Yes Both Both 0.2, .2 10 No 16 No 6 Standard 64 QFN
    RAA489204
    Multi-Cell Daisy-Chainable Li-Ion Battery Manager    		 6 - 14 10 - 65 External (Built-in Drivers), Internal (Built-in Drivers) None No N/A N/A 5.6 19 No 14 Yes 6 Standard 64 TQFP
    RAA489206
    Multi-Cell Li-Ion Battery Manager    		 4 - 16 12 - 55 External (Built-in Drivers), Internal (Built-in Drivers) Low Side Yes Both Both 0.2 10 No 16 No 6 Standard 64 QFN
    RAA489220
    4S to 10S Li-ion Battery Manager    		 4 - 10 5 - 44 None Low Side Yes Both Low Side 0.11 3 State Machine 16 No 1 Standard 32 QFN
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    Documentation

    Title Type Date
    Industrial Power Management Brochure
    PDF5.58 MB日本語
    Brochure
    BFE Family Functional Safety Manual
    PDF615 KB
    Guide
    Industrial Battery Front End API Software Manual
    PDF465 KB
    Manual - Software
    Low-Side FET White Paper
    PDF263 KB 简体中文
    White Paper
    Putting Safety into Li-ion Battery Packs
    PDF451 KB 简体中文
    White Paper
    Battery Management System Tutorial
    PDF451 KB 简体中文
    White Paper
    Implementing Inter-Module Communications in EV Battery Systems
    PDF354 KB
    White Paper
    Optimizing Battery Accuracy for EVs and HEVs
    PDF400 KB
    White Paper
    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.

    Video List
    RAA48920x Multi-Cell Battery Front End Family
    ISL94203 3-to-8 Cell Li-ion Battery Pack Monitor Webinar
    ISL94203/02 Battery Pack Monitor Protects Li-ion Batteries
    ISL78610 Battery Pack Monitor Webinar
    Improving Li-Ion Battery Safety
    12-Cell Battery Pack Monitor Evaluation Board Overview

    News & Blog Posts

    How Daisy-Chained Battery ICs Efficiently Monitor and Protect High Voltage Batteries Blog Post Nov 11, 2021
    Renesas Unveils New Multi-Cell Battery Front End Family for High-Cell Count, High-Voltage Systems News Nov 11, 2021