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ISL78610

Obsolete

Multi-Cell Li-Ion Battery Manager

Alternative(s) Available
ISL78714 - Automotive Grade Multi-Cell Li-Ion Battery Manager
  • Notes:ISL78610 is not recommended for new designs.

Features

  • Up to 12-cell voltage monitors with support for Li-ion CoO2, Li-ion Mn2O4, and Li-ion FePO4 chemistries
  • Cell voltage measurement accuracy ±10mV
  • 13-bit cell voltage measurement
  • 14-bit pack voltage and temperature measurements
  • Cell voltage scan rate of 19.5μs per cell (234μs to scan 12 cells)
  • Internal and external temperature monitoring
  • Up to four external temperature inputs
  • Robust daisy chain communications system
  • Integrated system diagnostics for all key internal functions
  • Integrated watchdog shuts down device if communication is lost
  • 2Mbps SPI
  • AEC-Q100 qualified
ISL78610 Functional Diagram
ISL78610 Functional Diagram

Description

The automotive grade ISL78610 12-cell battery pack monitor can be used as a stand-alone battery monitor or as a redundant back-up device in an ASIL compliant system. It supervises up to 12 series connected cells and features cell voltage and temperature monitoring along with system diagnostics. The ISL78610 communicates to a host microcontroller with an SPI interface and to other ISL78610 devices using a robust, proprietary, two-wire daisy chain system. The ISL78610 is offered in a 64 Ld TQFP package and is specified for operation at a temperature range of -40°C to +105°C.

Part NumberStatusSamplesStockRoHSPackageLead Count (#)Carrier TypeMoisture Sensitivity Level (MSL)Pb (Lead) FreePb Free CategoryTemp. Range (°C)
ISL78610ANZObsoleteN/AOut of StockRoHS:EN
TQFP64#Tray3YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +105°C
ISL78610ANZ-TObsoleteN/AOut of StockRoHS:EN
TQFP64#Reel3YesPb-Free 100% Matte Tin Plate w/Anneal-e3-40 to +105°C
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    Recommended Documents (1)

  1. Datasheet
    ISL78610 Datasheet
    RECOMMENDED
    PDF 1.79 MB isl78610 Jun 17, 2020

    Datasheets (1)

  1. Datasheet
    ISL78610 Datasheet
    RECOMMENDED
    PDF 1.79 MB isl78610 Jun 17, 2020

    Application Notes & White Papers (6)

  1. Application Note
    AN1723: ISL78600, ISL78610 - A Case Study
    PDF 993 KB an1723 Dec 15, 2021
    AI-generated Summary: The document discusses troubleshooting voltage drops and faults in the ISL78600/ISL78610 battery management ICs, emphasizing checks on diodes, resistors, and EEPROM integrity. It explains the use of P-channel and N-channel FETs in cell balancing to optimize drive voltages and noise immunity. It addresses issues with manual balancing disabling during high current events due to power-on resets triggered by voltage glitches and suggests additional filtering. The auto balance system removes charge based on calculated State of Charge, using a balance value derived from cell voltage, resistance, and balance time. The document also covers CRC checksum usage in daisy chain mode.
  2. White Paper
    Putting Safety into Li-ion Battery Packs
    PDF 451 KB li-ion-battery-pack-safety 简体中文 Oct 28, 2020
    The power FET is an essential safety function in a battery management system (BMS). The main purpose of the power FET is to isolate the battery pack from either a load or a charger in errant conditions. This white paper discusses the detection blocks and how they apply to the state of the power FETs to ensure safe operation of lithium ion (Li-ion) battery packs.
  3. White Paper
    Implementing Inter-Module Communications in EV Battery Systems
    PDF 354 KB inter-module-communications-in-ev-battery-systems Aug 09, 2018
    Careful consideration must be given to the selection of a suitable battery management IC that is optimized for the rigors of automotive applications. Proprietary communication protocols and careful PCB layout can resolve a number of the issues introduced by the harsh environment of the EV battery and improve the performance of the system.
  4. White Paper
    Battery Management System Tutorial
    PDF 451 KB battery-management-system-tutorial 简体中文 Aug 09, 2018
    Advancements in battery technology have enabled lighter, more efficient power sources for devices ranging from portable tools to electric vehicles. This paper introduces battery management system (BMS) architecture and explains the key functional blocks involved. It guides designers in selecting the appropriate design and components to optimize battery performance and extend battery life based on application needs.
  5. White Paper
    Optimizing Battery Accuracy for EVs and HEVs
    PDF 400 KB optimizing-battery-accuracy-for-evs-and-hevs Mar 08, 2018
    Precise cell voltage measurement is vital for maximizing range, lifespan, and safety in EV, PHEV, and HEV batteries, especially with flat-discharge chemistries like lithium-iron phosphate. This paper explores design challenges in multi-cell balancing ICs and guides engineers in choosing BMS ICs that ensure long-term accuracy and meet ASIL-D compliance.
    6. View More (6)

    Product Notices (PCN, EOL, etc) (2)

  1. Product Change Notice
    PCN19003 - Product Improvement - Design Change for the listed Renesas ISL78600 and ISL78610 Products
    PDF 102 KB PCN19003 Aug 06, 2019
  2. Product Advisory
    PA18010 - Datasheet specification change for Listed Renesas ISL78600* and ISL78610* products
    PDF 411 KB PA18010 May 11, 2018

    Marketing Collateral (1)

  1. Brochure
    Analog ICs Brochure
    PDF 5.43 MB R07CL0009EJ0800 Rev.8.00 日本語 Nov 10, 2025
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    Software & Tools (1)

  1. Software & Tools - Other
    BMS Installer
    EXE 2.85 MB renesas-bms-installer Nov 17, 2017
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Support Communities

  1. ISL78610 Stand alone example

    Hi Tech Support, i am trying to get the ISL78610 working as a stand alone solution for Cell balancing. I am using the SPI interface with an STM32 uC. Reading the Serial number of the ISL78610 i get an answer from the device what shows that the SPI interface is ...

    Nov 1, 2021
  2. ISL78600 slave identify process is very slow

    ... 0; j < k; j++) { //shift left one bit carry = (tempByte & 0x80) > 0; tempByte = (unsigned char) ((tempByte & 0x7F) * 2); //see ISL78610 datasheet, Fig 11: 4-bit CRC calculation ff0 = carry ^ bit3; ff1 = bit0 ^ bit3; ff2 = bit1; ff3 = bit2; bit0 = ff0; bit1 = ff1; bit2 = ff2; bit3 ...

    Jul 16, 2024

Knowledge Base

  1. When using the ISL78600 or ISL78610, can every cell be individually balanced?

    Question: Can every cell be individually balanced?                 Answer: Yes.

  2. Do the ISL78600 or ISL78610 have an independent timer which assures power down of the device and switches off balancing after a configured time?

    Question: Is there an independent timer which assures power down of the device and switches off balancing after a configured time?   Answer: Yes, the devices enter Sleep mode after a Watchdog timeout.

  3. Do the ISL78600 or ISL78610 have independent power supply pins from HV battery, or do they use the highest/lowest voltage input pins?

    Question: Are there independent power supply pins from HV battery, or do these devices use the highest/lowest voltage input pins?       Answer: The device is powered by the Pack voltage (VBAT to VSS)

View All Results from Knowledge Base (4)
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