15-channel lithium battery management module

 Lithium battery units with voltages of 48V and below are widely used in micro-hybrid vehicles and industrial energy storage. The system consists of 13 to 15 lithium battery cells. Due to the inherent characteristics of lithium batteries, this number of battery cells needs to be accurately monitored to ensure system safety and improve battery efficiency and life.
This reference design implements voltage and temperature monitoring of 15 lithium battery cells. While ensuring signal monitoring accuracy, it also provides the architecture of the main monitoring circuit and secondary monitoring circuit to achieve a higher level of system protection.
At the same time, this reference design provides a modular and scalable board-level architecture. In addition to the main monitoring circuit module, secondary monitoring circuit module, and data interface module, other modules such as active equalization circuits can be expanded to facilitate system prototype development.
The main chips used in this reference design are:
        • AD7280A 6-channel lithium battery voltage and temperature primary monitoring chip
        • AD8280 6-channel lithium battery voltage and temperature secondary monitoring chip
        • ADuM5401 Integrated chip containing 500mW power supply isolation and 4-channel data isolation
        • ADuM1201 2 Channel data isolation chip
        • ADuC7026 ARM7 architecture 32-bit microprocessor
        • AD8601 low-cost high-precision operational amplifier

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The complete information includes the following contents:
1. GUI software installation file
2. Schematic diagram and PCB file
3. Complete user manual