Scalable automotive HEV/EV 6-s to 96-s lithium ion cell supervision demonstrator reference design
TIDA-01537
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Key Document
- Scalable Automotive HEV/EV 6s to 96s Li-Ion Cell Supervision Demonstrator (Rev. A)
(PDF 1716 KB)
30 Apr 2019
Description
This reference design is a small-sized cell supervision demonstrator design for a centralized battery management system (BMS). Its configurable capacitive isolation daisy chain solution enables monitoring and protecting cells ranging from 6-series to 96-series, which allows its use in BMS systems ranging from 24 V to 400 V . In hybrid or electric vehicles (HEV/EVs), a high voltage lithium ion battery stores the energy required for traction and housekeeping. The lithium ion cells in the battery must be monitored while charging and discharging. This design provides a solution for monitoring lithium ion cell voltages accurately and communicating the data externally via various interfaces such as CAN and bqStudio.
Features
- Scalable cell supervision circuits from 6s to 96s
- Accurate leakage current estimation
- Estimated isolation resistance
- Accurate high-voltage measurement
- Scalable to multiple batteries
See the Important Notice and Disclaimer covering reference designs and other TI resources.