The MP9928 Datasheet EC table mentions a valley current limit but this is not described again anywhere in the datasheet. Is this simply another comparison point for the current limit that occurs when the high-side turns on and/or the low side turns off?
Hi Tim,
Thank you for utilizing the MPS Technical Forum.
Correct, the valley current limit is a comparison point for the current limit. The LS switch current is sensed while conducting across R7 or the SENSE+ and SENSE- pins and once it reaches the valley current limit. The LS switch turns off and HS switch conducts.
Regards,
Nouman
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