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Question about TON_DELAY of LTM4676A


My customer is consodering to use LTM4676A and ask some questions about TON_DELAY value.

They say that they don't change any register values, so TON_DELAY is a default value which is 0ms (0x8000).

But as their test result, it seems to be about 87ms.

At this time, the value of TON_DELAY register is 0x8000.

Please refer below pictures and let me know your opinions.

Q1)  Is the value of TON_DELAY  about 87ms at initial state?

Q2) Would you suggest how to reduce the value of TON_DELAY?

1. Test Results

a: 300.13ms

b: 387.41ms

b-a: 87.28ms