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TIDA-010208

10s-16s battery pack reference design with accurate cell measurement and high-side MOSFET control

TIDA-010208

Design files

Overview

This reference design is a low standby and ship-mode current consumption and high cell voltage accuracy 10s–16s Lithium-ion (Li-ion), LiFePO4 battery pack design. It monitors each cell voltage, pack current, cell and MOSFET temperature with high accuracy and protects the Li-ion, LiFePO4 battery pack against cell overvoltage, cell undervoltage, overtemperature, charge and discharge over current and discharge short-circuit situations. It adopts high-side N-channel MOSFET architecture and has strong driving on and off capability. Through an efficient auxiliary power supply strategy, this reference design achieves 100-μA standby and 10-μA ship mode consumption, saving more energy and allowing longer shipping time and idle time. These features make this reference design highly applicable for e-bike and e-scooter battery pack applications.

Features
  • Ultra-low current consumption:
    • typical 100-μA when in standby mode
    • typical 10-μA when in shipping mode
  • High cell voltage accuracy without calibrations:
    • ±5 mV at 25°C; ±10 mV at 0°C–60°C
    • ±15 mV at –40°C to 85°C
  • Robust battery cell protection, including:
    • Primary: cell overvoltage, cell undervoltage, two levels overcurrent discharge, overcurrent charge, discharge short circuit and overtemperature
    • Secondary: cell over voltage, cell undervoltage and overtemperature
  • Other system protections, including: cell open wire and thermal host watchdog
  • Reverse charger and high voltage on PACK side
  • High-side N-channel MOSFETs and strong driving capability

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.

TIDUEY5.PDF (2725 K)

Reference design overview and verified performance test data

TIDM788.PDF (713 K)

Detailed schematic diagram for design layout and components

TIDM789.PDF (178 K)

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

TIDM790.PDF (489 K)

Detailed overview of design layout for component placement

TIDM792.ZIP (2506 K)

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

TIDCFZ2.ZIP (1634 K)

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

TIDM791.PDF (1921 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Battery protectors

BQ77216Voltage and temperature protection for 3-s to 16-s cell Li-ion batteries with internal delay timer

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

BQ769523-s to 16-s high-accuracy battery monitor and protector for Li-ion, Li-polymer and LiFePO4

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

LM5163100-V input, 0.5-A synchronous buck DC/DC converter with ultra-low IQ

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

TCAN1042HVFault Protected CAN Transceiver With Flexible Data-Rate

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

TCAN1044VFault-protected CAN FD transceiver with standby mode and 1.8-V IO support

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TLV704150-mA, 24-V, ultra-low-IQ, low-dropout voltage regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML
MSP430 microcontrollers

MSP430FR215524 MHz MCU with 32KB FRAM, 4KB SRAM, comparator, 12-bit ADC, UART/SPI/I2C, timer

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD19536KTT100-V, N channel NexFET™ power MOSFET, single D2PAK, 2.4 mOhm

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

TMP611%, 10-kΩ linear thermistor in 0402, 0603/0805 and through hole packages

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

Technical documentation

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Type Title Date
* Design guide 10s-16s Battery Pack Reference Design With Accurate Cell Measurement Jan. 11, 2021

Related design resources

Hardware development

EVALUATION BOARD
BQ77216EVM Voltage and temperature protection for 3-series to 16-series cell Li-ion batteries evaluation module

Software development

APPLICATION SOFTWARE & FRAMEWORK
BQSTUDIO Battery Management Studio (bqStudio) Software

Design tools & simulation

CALCULATION TOOL
LM5163-LM5164DESIGN-CALC LM5163 and LM5164 converter quickstart design tool

Support & training

TI E2E™ forums with technical support from TI engineers

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