LSF0102: High z

Shay Mor

Part Number: LSF0102

Hi,

LSF0102:

If one of the input voltage A or A and B is down and the EN pin is pull up, is the I/Os are in high Z state?

0 Dylan Hubbard over 5 years ago

Hey Shay,

Are you referring to the supply pins being "down"?

0 Shay Mor over 5 years ago in reply to Dylan Hubbard

yes

0 Clemens Ladisch over 5 years ago in reply to Shay Mor

Guru 317480 points

The LSF has no power-down mode. As long as a current can flow into Vref_B and out of Vref_A (which can happen if Vref_A = 0), it might work.

The only way to disconnect the A and B side I/Os is to pull the EN pin low. (In most circuits, EN = Vref_B.)

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