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SM72442: Inquiries related to AIIN pin of SM72442, SM72445

Grady Lee
Genius 4185 points
Part Number: SM72442
Other Parts Discussed in Thread: SM72445,

Hello.
Please inquire about the AIIN pin of SM72442 and SM72445.
On the datasheet, AIIN pin is an input current sensing pin as shown in the screenshot below.
By the way, 3V is currently output from AIIN pin, causing malfunction.
3V output is not generated in MPPT mode, but 3V output is generated in PM mode operation.
Please provide technical support for this.
Thank you.

  • 0
    TI__Guru* 78190 points

    Hi Leo,

    Thank  you for posting.  Sorry I am confused by your question. What to you mean by "3V is currently output from AIIN input"?  It is an input pin. How could you get an output signal from that pin?  Also, can you describe your current sense amplifier?  Which is not clear what do you use.

    Thanks,

    Youhao Xi, Applications Engineering