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TIDA-010247
High-accuracy battery management unit reference design for 48–1500V energy storage system
TIDA-010247
Overview
This reference design is a high-side, N-channel MOSFET control (up to 32s) battery management unit (BMU), using the stacked BQ769x2 battery monitor family. This design also integrates a CAN interface for BMU stacking high-voltage (up to 1500V) energy storage station applications. 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 48–1500V energy storage systems.
Features
- ±1.8mV lithium iron phosphate cell voltage measurement accuracy at 25°C with fixed offset adjustment
- 7μA consumption in ship mode
- Robust and programmable battery cell and system protections
- Reverse charger and high voltage on PACK side
- High-side N-channel MOSFETs and strong driving capability
- Support stacked architecture through CAN up to 1500V
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.
TIDUF20A.PDF (1502 K)
Reference design overview and verified performance test data
TIDMB58A.PDF (5158 K)
Detailed schematic diagram for design layout and components
TIDMB59A.PDF (165 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDMB60A.PDF (1202 K)
Detailed overview of design layout for component placement
TIDMB62A.ZIP (6656 K)
Files used for 3D models or 2D drawings of IC components
TIDCGC2A.ZIP (1376 K)
Design file that contains information on physical board layer of design PCB
TIDMB61A.PDF (5570 K)
PCB layer plot file used for generating PCB design layout
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Technical documentation
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| Type | Title | Date | ||
|---|---|---|---|---|
| Design guide | High-Accuracy Battery Management Unit Reference Design for 48–1500V Energy Storage System (Rev. A) | PDF | HTML | Dec. 10, 2024 | |
| Application note | Design Considerations of Stacked BQ769x2 With High-Side N-MOSFET | PDF | HTML | Feb. 09, 2023 | |
| 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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