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TIDA-010271

Stackable battery management unit reference design for energy storage systems

TIDA-010271

Design files

Overview

This is a full cell-temperature sensing and high cell voltage accuracy Lithium-ion (Li-ion), lithium iron phosphate (LiFePO4) battery pack (32s) reference design. The design monitors each cell voltage, cell temperature and protects the battery pack to secure safe use. This design uses onboard and offboard daisy-chain communication interface for a cost-effective stacked bus connection. These features make this reference design applicable for high-capacity battery pack applications.

Features
  • ±1.5-mV voltage accuracy at 25°C without calibration
  • Passive cell balancing up to 100 mA using internal MOSFET or external BJT
  • Full cell-temperature sensing with mux
  • Robust and programmable battery cell and system protection
  • Robust daisy-chain communication with data reclocking and ring architecture
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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.

PDF | HTML
TIDUF46.PDF (979 K)

Reference design overview and verified performance test data

TIDMC03.PDF (1539 K)

Detailed schematic diagram for design layout and components

TIDMC04.PDF (212 K)

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

TIDMC05.PDF (1063 K)

Detailed overview of design layout for component placement

TIDMC07.ZIP (11241 K)

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

TIDCGI3.ZIP (2217 K)

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

TIDMC06.PDF (5784 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Analog switches & muxes

TMUX11023-pA on-state leakage current, 5-V, 1:1 (SPST), 1-channel precision switch (active low)

Data sheet: PDF | HTML
Analog switches & muxes

TMUX13085-V, 8:1, 1-channel general-purpose multiplexer with 1.8-V logic control

Data sheet: PDF | HTML
Analog switches & muxes

TMUX15745-V, 2:1 (SPDT), 4-channel analog switch with powered-off protection & 1.8-V input logic

Data sheet: PDF | HTML
Battery monitors & balancers

BQ7961616-S precision battery monitor, balancer and integrated protector with stacking interface

Data sheet: PDF | HTML
Digital isolators

ISO7742Robust EMC, quad-channel, 2/2, reinforced digital isolator

Data sheet: PDF | HTML
ESD protection diodes

ESD2CAN24-Q1Automotive, dual, 3-pF, ±24-V, ±30-kV ESD protection diode for in-vehicle networks

Data sheet: PDF | HTML
ESD protection diodes

ESD4411-pF, 5.5-V, 30-KV ESD protection device in 0201 package

Data sheet: PDF | HTML
Load switches

TPS2281018-V, 3-A, 79-mΩ load switch with adj. rise time and adj. output discharge

Data sheet: PDF | HTML
Opto-emulators

ISOM8110DC input, transistor output, single-channel, opto-emulator with 100% to 155% CTR

Data sheet: PDF | HTML
TVS diodes

TSD05C5.5-V 30-A bidirectional surge protection device

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Design guide Stackable Battery Management Unit Reference Design for Energy Storage Systems PDF | HTML Oct. 12, 2023

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