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ISL78600

Obsolete

Multi-Cell Li-Ion Battery Manager

NOTICE - The following device(s) are recommended alternatives:
ISL78714 - Automotive Grade Multi-Cell Li-Ion Battery Manager
ISL78600 is not recommended for new designs.

Overview

The ISL78600 Li-ion battery manager IC supervises up to 12 series-connected cells. The part provides accurate monitoring, cell balancing, and extensive system diagnostics functions. Three cell balancing modes are incorporated: Manual Balance mode, Timed Balance mode, and Auto Balance mode. The Auto Balance mode terminates balancing functions when a charge transfer value specified by the host microcontroller has been met. The ISL78600 communicates to a host microcontroller through an SPI interface and to other ISL78600 devices using a robust, proprietary, two-wire daisy chain system. The ISL78600 is offered in a 64 Ld TQFP package and is specified for operation at a temperature range of -40°C to +105°C.

ISL78600 Functional Diagram
ISL78600 Functional Diagram
  • Up to 12-cell voltage monitors with support for Li-ion CoO2, Li-ion Mn2O4, and Li-ion FePO4 chemistries
  • Board level cell voltage measurement accuracy ±1.5mV
  • 13-bit cell voltage measurement
  • Pack voltage measurement accuracy ±100mV
  • 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
  • Hardwired and communications based fault notification
  • Integrated watchdog shuts down device if communication is lost
  • 2Mbps SPI AEC-Q100 qualified

Documentation

Design & Development

Software Downloads
Type Title Date
Software & Tools - Other
BMS Installer
EXE 2.85 MB
1 item

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

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Support Communities

  1. ISL78600 slave identify process is very slow

    ISL78600 slave identification process is very slow, I am using 10 ISL with a daisy chain process. MCU is RL78/F13 series. Below is the process I am following to identify slaves and master. unsigned char BMS_TX_Buff[27][3] = {0x25,0x80,0x00, //0: Read User ...

    Jul 16, 2024
  2. ISL78600 ISL94212 daisy chain communication broke , how to ready the unbroken AFE data

    IN our application : there are 4 pcs  AFE (ISL78600/ISL94212) ,configure as  Daisy chain communication , 125KHZ bit rate . If AFE 3 or AFE 4 is broken , there is no data ready signal while Identify the chips .so all the voltage data lost . How to read the previous AFE's ...

    Aug 23, 2022

FAQs

  1. 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)

    Jan 1, 1970
  2. When using the ISL78600 or ISL78610, can every cell be individually balanced?

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

    Jan 1, 1970
  3. What is the AEC-Q100 class of the ISL78600 and ISL78610?

    Question: What is the AEC-Q100 class that is the target of these devices?   Answer: Grade 2, -40C to +105C

    Jan 1, 1970
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