Re: IR38063 .9V and .95V operation

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drudolf
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Thanks for the information. It's very useful, especially the programming guide. One more question: I cannot tell from the datasheet what are the required/max voltage levels for the PM Bus (SDA, SCL) pins? From the block diagram it show 1.8V from the internal LDO going to the SMB Interface block but then in the application part of the document it says: "PowIRCenter USB-to-I2C dongles have their SCL and SDA lines internally pulled up to 3.3V." which implies that it is 3.3V or at least 3.3V tolerant. Maybe I missed it but I don't see anywhere this is defined in the DC specs.

Thanks!
Dan

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Nishanth
Moderator
Moderator
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100 solutions authored 10 likes given 100 replies posted

Hello Dan,

Thank you for contributing to the Infineon community.

Refer to the screenshot of the pin description of the IR38063 datasheet below:

Nishanth_0-1666960603025.png

SDA, SDL pin should be pulled up to 3.3V -5V with 1K-5K resistor.

Please feel free to reach out to us if you need further clarification on this topic. 

Regards,

Nishanth

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Nishanth
Moderator
Moderator
Moderator
100 solutions authored 10 likes given 100 replies posted

Hello Dan,

Thank you for contributing to the Infineon community.

Refer to the screenshot of the pin description of the IR38063 datasheet below:

Nishanth_0-1666960603025.png

SDA, SDL pin should be pulled up to 3.3V -5V with 1K-5K resistor.

Please feel free to reach out to us if you need further clarification on this topic. 

Regards,

Nishanth

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