Skip to main content

PSUs 101: A Detailed Look Into Power Supplies

Monitoring Integrated Circuits

The table below includes all popular monitoring integrated circuits (ICs) used in the secondary side of modern PSUs. These ICs handle all protections that we described earlier.

Model+12V Channels PGOVPUVPSCPOCPOPPOTP
GR8313-YYYYNNN
HY510N-YYY(5/3.3V)YNNN
UTC S35152YYYYYNN
PS1131YYY(5/3.3V)YNNN
PS113A1YYY(5/3.3V)YNNN
PS222S2YYYYYNN
PS2232YYYYYNY
PS2362YYYYYNN
PS2386YYYYYNN
PS231S3YYYYYNN
PS232F4YYYYYNN
PS232S4YYYYYNN
WT7502-YYY(5/3.3V)Y(5/3.3V)NNN
WT75051YYYYYNN
WT75073YYYYYNY
WT75184NNNYYNN
WT7518D2NNNYYNN
WT75201YNYYYNN
WT75252YNYYYNN
WT75272 (+1 OVD)YYYYYNN

As you can see from the table above, one of the most important protections (the OTP or Over-Temperature Protection) is only supported by two monitoring ICs, the SITI PS223 and the Weltrend WT7507. However, there are other ways to implement this protection and trigger one of the other protections in a monitoring IC, in order to shut down the PSU.