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About trouble example of UCD9246 and UCD7242

Guru 18450 points
Other Parts Discussed in Thread: UCD7242, UCD9246

Customer has problem occurred for UCD9246 and UCD7242 below.

・FLT flag is asserted for once every few month(~6 month).

 ※Overcurrent and temperature have big margin, these are no problem.

If there past case for occurs the same phenomenon, please let me know.

If there is also a solution, it is the best.

Best regards,

Satoshi

  • Never heard of this problem in the past. 

    Do you have waveform to catch the FLT signal? 

    UCD7242 OT threshold for FLT to assert is fixed at 170C by hardware (not the one you can set in GUI).

    UCD7242 OC threshold for FLT to assert is fixed at 15A by hardware (also not the one you can set in GUI).