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)
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