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BQ76920: Top Cell Voltage Monitoring Problem

Part Number: BQ76920

Hi Team,

Would you kindly help with the issue below?

In the image below, the customer wasn't able to sense or monitor the topmost cell voltage which is shown at the VC5 pin. If this IC is used for 4S schematic & provides a total of 12 Volts Between VC0 & VC5 (With VC3 & VC4 Short) then, the VC5 is shown as 0.84 Volts not 3 Volts. And If the BQ chip connection is removed then It shows 3 Volts correctly.

Let me know if you need more information.


Regards,

Marvin