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Author Topic: Help needed to identify IC  (Read 1688 times)

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Online GixyTopic starter

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Help needed to identify IC
« on: December 28, 2015, 10:52:39 am »
Hi guys,
I'm trying to re-engineer a DC motor variator. The two power MOSFET are driven by two ICs marked GY9D, with SOT23-5 packages. I can't find references of this circuit, which is probably also a MOSFET. Anyone knows that circuit?
Thanks in advance.
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Offline mikerj

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Re: Help needed to identify IC
« Reply #1 on: December 28, 2015, 11:10:37 am »
The code is not familiar, but there are many MOSFET drivers in SOT23-5 packages so it seems likely that it's one of those.  Trace out the circuit, if the SOT23 has a separate supply and ground pin, then it's going to be a driver rather than a single discrete MOSFET.
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Offline rich

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Re: Help needed to identify IC
« Reply #2 on: December 28, 2015, 03:22:21 pm »
perhaps MCP1401T-E/OT ?
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Online GixyTopic starter

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Re: Help needed to identify IC
« Reply #3 on: December 28, 2015, 03:38:24 pm »
@rich
Yes sir! That's it. Thank you.https://www.eevblog.com/forum/Smileys/default/clap.gif
@mikerj
Thank you mike, I'm going to trace out the circuit in order to remake a PCB for a little serial.
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