This reference design is a high-side, N-channel MOSFET control (up to 32s) battery pack, using the stacked BQ769x2 battery monitor family. This design monitors each cell voltage, pack current, cell and MOSFET temperature and protects the battery pack for secure safe use. The high-side N-channel MOSFET architecture and optimized driving circuits provide easy switch control. This reference design achieves low stand-by and ship-mode consumption and optimizes the current gaps between two groups. This reference design is for high-cell-count, high voltage and battery-pack applications.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| Application note | Design Considerations of Stacked BQ769x2 With High-Side N-MOSFET | PDF | HTML | Feb. 09, 2023 | |
| Design guide | High-Side N-MOSFET Control (Up to 32s) Batt Pack RefDes W/ Stacked Batt Monitor | PDF | HTML | Dec. 06, 2022 | |
| Application note | BQ769x2 Calibration and OTP Programming Guide (Rev. A) | PDF | HTML | Aug. 06, 2021 | |
| Application note | DC/DC Buck Converters With Ultra-Low IQ for Industrial Battery-Pack Applications | Feb. 20, 2019 |
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