Scalable automotive HEV/EV 6-s to 96-s lithium ion cell supervision demonstrator reference design


Design files


This reference design is a small-sized cell supervision demonstrator design for a centralized battery management system (BMS). Its configurable capacitive isolation daisy chain solution enables monitoring and protecting cells ranging from 6-series to 96-series, which allows its use in BMS systems ranging from 24 V to 400 V . In hybrid or electric vehicles (HEV/EVs), a high voltage lithium ion battery stores the energy required for traction and housekeeping. The lithium ion cells in the battery must be monitored while charging and discharging. This design provides a solution for monitoring lithium ion cell voltages accurately and communicating the data externally via various interfaces such as CAN and bqStudio.

  • Scalable cell supervision circuits from 6s to 96s
  • Accurate leakage current estimation
  • Estimated isolation resistance
  • Accurate high-voltage measurement
  • Scalable to multiple batteries

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUE78A.PDF (1716 K)

Reference design overview and verified performance test data

TIDRXC9.PDF (4294 K)

Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRXD1.PDF (2126 K)

Detailed overview of design layout for component placement

TIDRXD3.ZIP (4707 K)

Files used for 3D models or 2D drawings of IC components

TIDCEY2.ZIP (1526 K)

Design file that contains information on physical board layer of design PCB

TIDRXD2.PDF (9954 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Arm-based microcontrollers

TMS570LS043216/32 Bit RISC Flash MCU, Arm Cortex-R4, Auto Q-100

Data sheet document-pdfAcrobat PDF open-in-new HTML
Battery monitors & balancers

BQ79606A-Q16-S automotive precision battery monitor, balancer and integrated protector with ASIL-D compliance

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TPS57160-Q1Automotive 3.5V to 60V, 1.5A Buck Converter with Eco-Mode™

Data sheet document-pdfAcrobat PDF open-in-new HTML
CAN & LIN transceivers & SBCs

TCAN1042HGV-Q1Automotive Fault Protected CAN Transceiver With Flexible Data-Rate

Data sheet document-pdfAcrobat PDF open-in-new HTML
Multi-channel ICs (PMICs)

TPS65381A-Q1Multi-rail power supply (PMIC) for microcontrollers in safety applications

Data sheet document-pdfAcrobat PDF open-in-new HTML
Transformer drivers

SN6501-Q1Automotive low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* Design guide Scalable Automotive HEV/EV 6s to 96s Li-Ion Cell Supervision Demonstrator (Rev. A) Apr. 30, 2019

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