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BQ77905: OCD2 DSG output Sometimes gets oscillated before it gets locked

Part Number: BQ77905

Dear All:

I use BQ77905 Design 5 series battery protection board,the SCH is  Do OCD Test,OCD2 DSG output Sometimes gets oscillated  before it gets locked, the load was not removed,below is the Waveform ,Why the DSG output shut down before OCD2 threshold?Please give me some Suggestions.

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