LMH1219: Time until SMBus becomes available after power-on

Hayato Akuzawa

Part Number: LMH1219
Other Parts Discussed in Thread: LMH1208, LMH1218, LMH0397, LMH0303

Hi,

How many milliseconds after power-on is SMBus available ?

It cannot be found in the LMH1219 datasheet.

Best regards,

0 J 7 months ago

Hi Akuzawa-san,

SMBus should be available as soon as the device is fully powered. Are you seeing any unexpected behavior?

Best,

+1 Hayato Akuzawa 7 months ago

Hi J-san,

To prevent unexpected behavior, I want to know the numerical value for how long the device controlling LMH1219 should wait for communication.

The following tPOR values are listed in the datasheets of other devices I use, for reference.

LMH1208: 50ms

LMH1218: 20ms

LMH0397: 50ms

LMH0303: 500ms

Best reards,

0 J 7 months ago in reply to Hayato Akuzawa

Hi Akuzawa-san,

I suggest to follow LMH1218's value (20ms).

Best,
J

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