TIDA-010240

Scalable multi-pack smart battery charger reference design

TIDA-010240

Design files

Overview

Lithium batteries with more than 100 watt-hours (Wh) are generally not permitted in carry-on luggage, and any exceptions to this rule lie at the discretion of airlines and require prior approval. This reference design is a smart high-efficiency charger design for dual smart battery packs of up to 100-Wh implemented as 1S–5S Lithium-ion (Li-ion) batteries in a parallel configuration.

Features
  • Provides a drop-in battery charging system for charging and communication with two smart Lithium-Ion batteries
  • Supports 1S–5S packs with charge currents of up to 16-A per battery
  • Onboard microcontroller (MCU) for charge control and upstream
  • Onboard MCU communicates with smart battery gauges to read charging information and monitor alerts
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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
TIDUEB2A.PDF (1096 K)

Reference design overview and verified performance test data

TIDMAL6.PDF (803 K)

Detailed schematic diagram for design layout and components

TIDMAL7.PDF (138 K)

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

TIDMAL8.PDF (626 K)

Detailed overview of design layout for component placement

TIDMAM0.ZIP (3580 K)

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

TIDCG82.ZIP (2311 K)

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

TIDMAL9.PDF (3114 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Battery charger ICs

BQ25731I2C 1-5 cell NVDC buck-boost battery charge controller with USB type-C PD support

Data sheet: PDF | HTML
I2C & I3C switches & multiplexers

PCA9546A4-channel 2.3- to 5.5-V I2C/SMBus switch with reset & voltage translation

Data sheet: PDF | HTML
Ideal diode/ORing controllers

LM74700-Q13.2-V to 65-V, 80-uA IQ automotive ideal diode controller

Data sheet: PDF | HTML
Ideal diode/ORing controllers

LM7480-Q13-V to 65-V, automotive ideal diode controller driving back to back NFETs

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR247516 MHz MCU with 32 KB FRAM, 6 KB SRAM, comparator, 12-bit ADC, UART/SPI/I2C, timer

Data sheet: PDF | HTML

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Software

Firmware

TIDA-010240-MSP430FR3475-FW TIDA-010240 multi battery charger reference design firmware for MSP430FR2475

With this downloadable firmware, the onboard MSP430 on the TIDA-010240 reference design allows for a standalone smart multi battery charger with no interaction from a host controller.
Download options

TIDA-010240-MSP430FR3475-FW TIDA-010240 multi battery charger reference design firmware for MSP430FR2475

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Latest version
Version: 1.0
Release date: 20 Dec 2022

Documentation

Release Infomation

Version 1.0 firmware release for Scalable Multi-Pack Smart Battery Charger

 

Features:

-Provides a drop-in battery charging system for charging and communication with two smart Lithium-Ion batteries

-Supports 1S–5S packs with charge currents of up to 16-A per battery

-Onboard microcontroller (MCU) for charge control and upstream

-Onboard MCU communicates with smart battery gauges to read charging information and monitor alerts

Technical documentation

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Type Title Date
Design guide Scalable Multi-Pack Smart Battery Charger Reference Design (Rev. A) PDF | HTML Jul. 28, 2022

Related design resources

Hardware development

EVALUATION BOARD
BQ25731EVM I2C NVDC 1 to 5 cell, 16-A, buck-boost charger controller evaluation module LM74700EVM LM74700 evaluation module LM74800EVM-CD LM74800-Q1 ideal diode controller evaluation module

Support & training

TI E2E™ forums with technical support from TI engineers

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