Hi electronic folks
Does anybody know if this controller is programmable or not ?
I have replaced this controller on a MSI MAG B560 TOMAHAWK board, as it had a short on VCCS pin (pin 41). I have ordered a few new on Aliexpress, they seem to be original, however they do not start to work. When I move same chip from a second working board to the one I have replaced the RAA229001, the VRM starts normally to work. It seems that the chip is OK, as it generates on the VCCS pin nearly same voltage as a chip on a second working board i have (VCCS probably it's some internal reference voltage, as only component connected to this pin is a 10uF cap).
Now either the chips I bought on Aliexpress are fake, or they need to be programmed somehow. There is only a RAA220001 driver datasheet available (inside is a diagram with RAA229001) but there is nothing about programming of the RAA229001 there. However i found some references on some pages with programmers, that they are compatible with the RAA229001, eg:
https://www.elnec.com/en/device/Rene...BQFN48-6x6%5D/
The device has an SM Bus interface, so maybe this is used for programming ?
If anyone has a more deep knowledge about this topic, I'd appreciate to share it. Also how to program this annoying controller would be nice to know.
Below a screenshot from the schematics part of the a.m. board with the VRM part. Maybe this will help others, as the Renesas datasheet is shit as it does not contain pin number information (have no idea why they do not disclose this information).
Does anybody know if this controller is programmable or not ?
I have replaced this controller on a MSI MAG B560 TOMAHAWK board, as it had a short on VCCS pin (pin 41). I have ordered a few new on Aliexpress, they seem to be original, however they do not start to work. When I move same chip from a second working board to the one I have replaced the RAA229001, the VRM starts normally to work. It seems that the chip is OK, as it generates on the VCCS pin nearly same voltage as a chip on a second working board i have (VCCS probably it's some internal reference voltage, as only component connected to this pin is a 10uF cap).
Now either the chips I bought on Aliexpress are fake, or they need to be programmed somehow. There is only a RAA220001 driver datasheet available (inside is a diagram with RAA229001) but there is nothing about programming of the RAA229001 there. However i found some references on some pages with programmers, that they are compatible with the RAA229001, eg:
https://www.elnec.com/en/device/Rene...BQFN48-6x6%5D/
The device has an SM Bus interface, so maybe this is used for programming ?
If anyone has a more deep knowledge about this topic, I'd appreciate to share it. Also how to program this annoying controller would be nice to know.
Below a screenshot from the schematics part of the a.m. board with the VRM part. Maybe this will help others, as the Renesas datasheet is shit as it does not contain pin number information (have no idea why they do not disclose this information).
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