2024-10-08 03:52 AM
I am looking for some overview on my custom STM32H747 PCB design - mainly that my schematic for the power supply and VCAP etc. are correct
The board is to be powered by SMPS.
All comments welcome!
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2024-10-08 08:51 AM - edited 2024-10-08 08:54 AM
Hello @Iris-DM ,
This is the part of Schematics for SMPS config (in blue) from STM32H747 DISCO schematics :
So, double check with your schematics.
From RM0399:
From DS12930:
Hope it helps.
2024-10-08 04:06 AM
Hello @Iris-DM
Let me recommand you to take a look at the AN4938. Also, you can refer to the design of the STM32H747I-DISCO. They should be helpful.
Best Regards.
STTwo-32
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2024-10-08 04:06 AM
Have you reviewed Application note AN4938, Getting started with STM32H74xI/G and STM32H75xI/G MCU hardware development:
2024-10-08 08:51 AM - edited 2024-10-08 08:54 AM
Hello @Iris-DM ,
This is the part of Schematics for SMPS config (in blue) from STM32H747 DISCO schematics :
So, double check with your schematics.
From RM0399:
From DS12930:
Hope it helps.
2024-10-08 09:20 AM
C47 and C45 should change, normally parallel two decoupling capacitors, one for low frequence, one for high frequence, so should like C41,C39, C47 can change to 100 nF, C45 increase to 10 uF if you want.
2024-10-23 06:37 AM
Hello @Iris-DM ,
Could you please give a status on this thread?