[Solved] Unknown AC supply IC ASZBXA

[davorin]

Good afternoon (o;

Does somebody know what type of 8-SOIC IC this is in a WiFi power plug?
It is directly connected to a 3u3, 400V capacitor which is fed via a diode directly from the 230V AC main line...

Looks like a switcher device to get 5V directly from AC line...

Only marking I see is:  ASZBXA

[gamalot]

It's a SY50282FAC from Silergy.

https://datasheet.lcsc.com/szlcsc/Silergy-Corp-SY50282FAC_C178237.pdf

[davorin]

Excellent, thanks :-)

Not my field those high voltages, except for old vacuum tube radios...but those are easier to repair/modify (o;

[davorin]

Just in case someone is interested (o;

The IC is used in a Marmitek Power SE WiFI Plug...hop eI got the schematic right to continue swaping the WiFi module with an ESP8266 to run ESPHome (o;


https://github.com/richardklingler/marmitek/blob/main/pdf/power_se.pdf