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BQ25713: OTG function

Part Number: BQ25713

Hi Team, 

we follow the datasheet process to do OTG but found below issue 

Vbat=~11.2V. 

when REG0x05/04= 0x33E8( 13.288V), there is no switching and OTG output. REG21/20= 0x0000.  But we change it to 0x3138 (12.6V), then it have OTG output.  

based on datasheet, Vbat is below BATOVP, so it should works even setting 13.288V.  Please kindly help add your comments. 

 

BRs

Given