DS92LX1621, DS92LX1622 VDDn and VDDIO power up sequence

F.N

Other Parts Discussed in Thread: DS92LX1622, DS92LX1621

Hi team,

This customer wants to know DS92LX1621/DS92LX1622 VDDn and VDDIO power up sequence.

There's no description of VDDn and VDDIO power up sequence in the datasheet page.34
"POWER UP REQUIREMENTS AND PDB PIN" section. So, I think that the sequence is free.

Is this correct? Please let me know.

Best regards,
Fumio Nakano

over 8 years ago

0 Michael Lu (Santa Clara) over 8 years ago

TI__Mastermind 29655 points

Hi Nakano-san,

There is no specific power up sequence for the VDD supplies. The only requirement is PDB must be after VDD (VDDn and VDDIO) power supplies have settled to the recommended operating voltages. This is typically implemented by using a capacitor to GND on the PDB pin.

Thanks,

Michael

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DS92LX1621, DS92LX1622 VDDn and VDDIO power up sequence