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Author Topic: What is this IC? (757-1 2143)  (Read 571 times)

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Offline crgarciaTopic starter

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What is this IC? (757-1 2143)
« on: September 27, 2022, 02:47:28 pm »
How could I figure out what is this IC?

1601350-0

The only thing it says is:

757-1
2143

Thanks!
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Offline MarkF

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Re: What is this IC? (757-1 2143)
« Reply #1 on: September 27, 2022, 03:05:11 pm »
What is the device?

It could be a dual difference amp.
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Offline tunk

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Re: What is this IC? (757-1 2143)
« Reply #2 on: September 27, 2022, 03:06:06 pm »
What does it do?
"2143" could be a date code, and given the PCB is marked ST757,
I'd guess the original marking is removed and then remarked.
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Online coromonadalix

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Re: What is this IC? (757-1 2143)
« Reply #3 on: September 27, 2022, 04:40:33 pm »
is it an  power supply  ??
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Offline Terry Bites

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Re: What is this IC? (757-1 2143)
« Reply #4 on: September 27, 2022, 06:11:53 pm »
2143 is likely a date code. YYWW, 2021 OCtober.
Interesting that the PCB has the same base number. That can't be a coincidence.
Who makes this PSU looking thingy, what is it part of?
« Last Edit: September 27, 2022, 06:17:20 pm by Terry Bites »
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Offline srb1954

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Re: What is this IC? (757-1 2143)
« Reply #5 on: September 27, 2022, 08:18:36 pm »
It could be a customised microprocessor since the marking is the same as the PCB number.
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Online Fraser

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Re: What is this IC? (757-1 2143)
« Reply #6 on: September 27, 2022, 11:17:21 pm »
Looks to be a Radar based human presence detector. That IC carries a OEM code.

https://www.alibaba.com/product-detail/New-Inventions-Indoor-Waterproof-Small-PC_60566331046.html

It may be helpful to reverse engineer the PCB around the 757-1 IC as it could turn out to be something simple like a quad op-amp
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