HD3SS3212: confirm schematic

Lawrence He

Genius 3155 points

Part Number: HD3SS3212

Hi, Support Team

We will use HD3SS3212, schematic as below chart. have any concern?

schematic:

if any suggestion, Please advsie me.

Thanks,

Best regards,

Lawrence

over 2 years ago

0 Shane Hauser over 2 years ago

TI__Mastermind 35515 points

Hi Lawrence,

From what is shown, the schematic looks ok. I recommend adding a 10uF de-coupling capacitor on the VCC rail near your power supply if you don't already have one.

I cant tell what ESD device you're using. I recommend using a device with a clamp voltage around 3V if possible. A device we typically reference is the PUSB3FR4.

Best,

Shane

0 Lawrence He over 2 years ago in reply to Shane Hauser

Genius 3155 points

Hi, Shane

we have added 33uF and 100nF cap to REG_3V3(3V3 source), please refer the picture below.

if any suggestion, Please advise me.

Thanks,

Best regards,

Lawrence

0 Shane Hauser over 2 years ago in reply to Lawrence He

TI__Mastermind 35515 points

Hi Lawrence,

That looks good for the power source. If the ESD is ok, then I don't have any more suggestions for what is shown.

Your schematic image doesn't show how you control the SEL pin. Make sure this is controlled by a CC or PD controller.

Best,

Shane

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HD3SS3212: confirm schematic