Hi,
I'd like to modify the voltage of a spare 65W Dell power brick that I have to around 17V (instead of the nominal 19.5V unloaded).
I think that I identified the SMPS controller but it's only a partial part number on the marking. If someone could help me get the full part number and/or datasheet I could handle the rest.
The chip is a SO-8 and the marking is 103AIW on the first line and EK713 on the 2nd.
I still tried a few things without the datasheet. I found a 15 k resistor between Vout and a 2.5V pin on the IC. That looked like part of the voltage feedback divider so I replaced it with a pot. That didn't work. I also tried the same thing with a 75k resistor that I found between Vout and a ~2.25V pin. Didn't work either.
Thanks for any pointers!
I'd like to modify the voltage of a spare 65W Dell power brick that I have to around 17V (instead of the nominal 19.5V unloaded).
I think that I identified the SMPS controller but it's only a partial part number on the marking. If someone could help me get the full part number and/or datasheet I could handle the rest.
The chip is a SO-8 and the marking is 103AIW on the first line and EK713 on the 2nd.
I still tried a few things without the datasheet. I found a 15 k resistor between Vout and a 2.5V pin on the IC. That looked like part of the voltage feedback divider so I replaced it with a pot. That didn't work. I also tried the same thing with a 75k resistor that I found between Vout and a ~2.25V pin. Didn't work either.
Thanks for any pointers!
Comment