Multi-Cell Battery Manager Unit with Integrated Charging, Gauging, Authentication and Protection


Design files


The Texas Instruments bq40z60 device is a Battery Pack Manager that integrates battery charging control output, gas gauging, and protection for completely autonomous operation of 2-series to 4-series cell Li-Ion and Li-Polymer battery packs. The architecture enables internal communication between the fuel gauging processor and battery charger controller to optimize the charging profile based on the external load conditions and power path source management during load transients and adaptor current limitations in the system. The charging current efficiency is scalable for power transfer based on the external components, such as the NFETs, inductor, and sensing resistor.


• Fully Integrated gauge, protector and charger to support  2 to 4-Series Li-Ion or Li-Polymer cells
• Integrated NVDC Battery Charger with Input Voltage Range from 2.5V to 25V
• Impedance Track Technology
• Integrated SHA-1 Authentication
• This circuit design is tested and includes orderable EVM, User's Guide, and evaluation software.

??image.gallery.download_en_US?? View video with transcript Video

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.

TIDU916.PDF (181 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRE91.PDF (135 K)

Detailed schematic diagram for design layout and components

TIDRE93.PDF (245 K)

Detailed schematic diagram for design layout and components

TIDRE92.PDF (45 K)

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

TIDRE95.ZIP (713 K)

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

TIDCA51.ZIP (295 K)

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

TIDRE94.PDF (639 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

Battery fuel gauges

BQ40Z60Complete multi-cell battery manager | battery fuel (gas) gauge

Data sheet: PDF | HTML
Battery protectors

BQ2947Lithium-ion protection for accurate cell-by-cell voltage monitoring

Data sheet: PDF | HTML

Technical documentation

No results found. Please clear your search and try again.
View all 1
Type Title Date
Test report TIDA-00553 Test Results Apr. 13, 2015

Related design resources

Hardware development

BQ40Z60EVM-578 2 Series, 3 Series, and 4 Series Li-Ion Battery Pack Manager Evaluation Module

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. ​​​​​​​​