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I'm trying to find out what this IC is and appreciate any help! It is located inside an EV charging cable and its main task from plugs datasheet is:

"STATIC RESISTANCE (FROM PROX. DETECTION TO GROUND) 150ohm RESISTANCE WILL INCREASE TO 480ohm WHEN LATCH IS DEPRESSED" (No more info on datasheet about this mini circuit)

Here is the reverse-engineered schematics of the small pcb in the charging plug:

Here is the reverse-engineered schematics of the small pcb in the charging plug

Scope picture of unknown IC Scope picture of unknown IC

I guessed it might have been ADM803/ADM809/ADM810 which is same package but unfortunately pinouts doesnt match.

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  • \$\begingroup\$ That's a SOT package. You can basically buy any low- to medium-power transistor in this universe in that shape. Good luck. \$\endgroup\$ – Marcus Müller Feb 27 '17 at 20:46
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Looks like the ADM810 Reset 1shot chip

ADM810 datasheet

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  • \$\begingroup\$ At the end of their question, the OP said that they don't think it's that part, because the pinout doesn't match. Are you saying they're wrong? \$\endgroup\$ – duskwuff -inactive- Feb 27 '17 at 22:36
  • \$\begingroup\$ They are correct. C4 goes across pin 3 (centre IN) and 1 ( left GND) \$\endgroup\$ – Tony Stewart Sunnyskyguy EE75 Feb 27 '17 at 23:06

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