What's this please? (Component Advice)

[squadchannel]

N4 = Nexperia BC817DPN

WV4 = Nexperia BAT54S

[ABDELAFOU]

https://smd.yooneed.one/code4e34.html#code4e3432

[Stan13]

Hi, I have a very basic espresso machine. I asked my friend who is a technician to fix it but we can't Identify what is IC1. He says the input is 220 volts. Can anybody help me identify what chip it is so I can replace it? that chip very very small. Seems like it has BACJ9 written on top. and it seems like it has 5 pins. Thank you

P.S.
someone from other forum showed me this and it looks exactly my pcb. I can't order though. https://www.cafessole.com/recambios-cecotec/1725-placa-pcb-power-espresso-20-tradizionale.html

[gamalot]

Seems like it has BACJ9 written on top. and it seems like it has 5 pins. Thank you

https://www.ame.com.tw/datasheet/6-AME8510%208520%208530_20160322_I.14.pdf

[Stan13]

thanks. do you have any other idea? a technician said the input is 220 volts, do you think he is wrong?

[fzabkar]

Seems like it has BACJ9 written on top. and it seems like it has 5 pins. Thank you

https://www.ame.com.tw/datasheet/6-AME8510%208520%208530_20160322_I.14.pdf

There is a large inductor on the other side of the PCB. To me, the IC looks something like a Power Integrations LinkSwitch "offline switcher". Also, notice that the relay coil voltage is 6V, and the MCU seems to be powered from the same supply.

Some IC makers refer to this IC as a "non-isolated buck power switch".

Lots of examples here, but none in an SOT23-5 package:

https://www.kiwiinst.com/fglzhq

[gamalot]

Sorry my bad! try this:

https://datasheet4u.com/pdf-down/A/P/8/AP8003-Chipown.pdf