Power & Power Management

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 vehicles (HEV), plug-in hybrid electric vehicles (PHEV), and electric vehicle (EV) applications.

Product Selection Table

    Processing table
    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
    Part Number
    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
    PDF 5.58 MB 日本語     		Brochure
    BFE Family Functional Safety Manual
    PDF 615 KB     		Guide
    Industrial Battery Front End API Software Manual
    PDF 465 KB     		Manual - Software
    Low-Side FET White Paper
    PDF 263 KB 简体中文     		White Paper
    Putting Safety into Li-ion Battery Packs
    PDF 451 KB 简体中文     		White Paper
    Battery Management System Tutorial
    PDF 451 KB 简体中文     		White Paper
    Implementing Inter-Module Communications in EV Battery Systems
    PDF 354 KB     		White Paper
    Optimizing Battery Accuracy for EVs and HEVs
    PDF 400 KB     		White Paper
    8 items
    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