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#1 |
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Join Date: Apr 2019
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#2 |
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![]() There is another ic to the left of U21, looks like a similar circuit, does it have the same number? or is it different? post it's picture if it is different.
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#3 |
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#4 |
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![]() Is the top mark |BCSB, it might be a Monolithic Power Systems dc-dc step-down
for example, here is a MP1495DJ marked |ACSF Last edited by R_J; 03-20-2022 at 02:35 PM.. |
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#5 |
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![]() You are not far from the truth.
But i have not found with this top marking any mps. Top Mark : BCSB Code product : BCS B : year code |
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#6 |
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![]() If that first character is a lower case b it could be a custom silergy part.
As an example,the SY8088I (SOT23-5) has the Top Mark: bPxyz (device code: bP, x=year code, y=week code, z= lot number code |
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#7 |
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#8 |
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#9 |
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![]() Could this fit?
https://www.silergy.com/productsview/sy21154aic ![]() On the circuit : Input : 24 volts pin 5 Ground : pin 3 and 4 Last edited by seb68; 04-03-2022 at 03:09 PM.. |
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#10 | |
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![]() Quote:
Outpout : pin 6 (LX) (there is a coil in the circuit) |
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#11 | |
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Join Date: May 2022
City & State: Vilnius
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Line Voltage: 230VAC
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![]() Quote:
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#12 |
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![]() SY8303AIC I mean as the closest analogue.
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#13 |
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![]() Hello,
yes it is the same and it should work |
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#14 |
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![]() Please tell me how to identify Q3 3034_NSAt?
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#15 |
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#16 |
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![]() Q3 is in post #3 on the right side of the picture (next to the glue) It looks like a DFN8 3034 seems to be the part number,
Last edited by R_J; 05-26-2022 at 10:16 AM.. |
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#17 |
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#18 |
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![]() Thanks seb68 for the picture.
Yes. Exactly this one. Last edited by labusas; 05-30-2022 at 07:15 AM.. |
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#19 |
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![]() I would like to know what voltage this power supply generates, 3V or 5V?
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#20 |
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![]() Several supply lines from 24 volts :
5 volts 3.3 volts maybe 1.2volts and 12volts but i don't remember. |
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