Lithium-ion battery pack monitor design with integrated signal and power isolation, with schematics, bill of materials, assembly drawings, data

Summary:

Circuit function and advantage

Lithium-ion (Li-Ion) battery packs contain a large number of battery cells that must be properly monitored to increase battery efficiency and extend battery life. The 6-channel AD7280A in the circuit shown in Figure 1 acts as the primary monitor, providing accurate measurement data to the Battery Management Controller (BMC).

The AD7280A has a ±3 ppm reference that provides ±1.6 mV battery voltage measurement accuracy. The ADC resolution is 12 bits and it takes only 7 μs to convert 48 cells.

Physical map of AD7280A daisy chain configuration PCB with isolation function

AD7280A Daisy Chain Configuration Circuit with Isolation

See the uploading documentation for details (click to download)

48V Charger

HuiZhou Superpower Technology Co.,Ltd. , https://www.spchargers.com

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