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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 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
  2. 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

FAQs

  1. 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.

    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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