TIDA-00884

1 to 2s HDQ Li-Ion Battery Pack Manager Reference Design

TIDA-00884

Design files

Overview

The Texas Instruments bq78z100 device is a Battery Pack Manager that integrates gas gauging, and protection for complete autonomous operation of 1-series to 2-series cell Li-Ion and Li-Polymer battery packs. The architecture enables communication between the fuel gauging processor and an external battery charger controller through HDQ broadcast commands. This reference design eases the design process for the customer given that it is a complete pack solution which includes gauging and protection of the Li-ion battery. It includes an overvoltage IC for additional safety protection.

Features
  • Fully Integrated gauge, protector  to support  1 to 2-Series Li-Ion or Li-Polymer cells
  • 2nd Level Protector provides Over Voltage Protection
  • bqstudio Software that allows data logging for system analysis
  • Impedance Track technology
  • Integrated SHA-1 authentication

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.

TIDUBH7.PDF (130 K)

Reference design overview and verified performance test data

TIDRKH5.PDF (189 K)

Detailed schematic diagram for design layout and components

TIDRKH6.PDF (78 K)

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

TIDRKH7.PDF (199 K)

Detailed overview of design layout for component placement

TIDRKH9.ZIP (1250 K)

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

TIDCBT7.ZIP (438 K)

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

TIDRKH8.PDF (388 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Battery fuel gauges

BQ78Z100Impedance Track™ battery fuel (gas) gauge for 1-series to 2-series

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

BQ294502Overvoltage Protection Device for 2- to 3-Cell Li-Ion Batteries, with 4.35v OVP

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

CSD16412Q5A25-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 16 mOhm

Data sheet document-pdfAcrobat PDF

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Design guide TIDA-00884 Test Results Feb. 10, 2016

Related design resources

Software development

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

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos