2025-04-09 2:00 PM - last edited on 2025-04-09 2:17 PM by Tesla DeLorean
I am trying to identify an ST IC with marking MZ938. It is an 8-SOIC and it is used in a circuit which helps maintain charge on a 24V battery and is fed by a boost switching circuit. It also has 0621 marked on it. I assume that's the date code.
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2025-04-09 10:03 PM
The marking is 062I (with uppercase i) = TL062ID.
Regards
/Peter
2025-04-09 2:12 PM
Please attach a large, clear and in-focus picture of the IC
The MZ938 is likely a production code.
2025-04-09 2:15 PM
Probably STISO621 not sure if wide or narrow body
https://www.st.com/en/interfaces-and-transceivers/stiso621.html
2025-04-09 7:01 PM
That angle gets the printed information. Let me know if you'd like something different. Many thanks for your help.
2025-04-09 7:07 PM
I appreciate the suggestion. I will trace it out and see if this makes sense.
2025-04-09 10:03 PM
The marking is 062I (with uppercase i) = TL062ID.
Regards
/Peter
2025-04-10 7:22 AM
That makes so much sense. I'll trace more of the circuit to verify and get back to you here later today.
Many thanks.
2025-04-10 8:50 AM
Looks good. Pin 4 is ground. Pin 8 is 12 V. Pins 1 and 7 look credible as outputs. Again, many thanks for your help.
Best regards,
...Peter