PCA9306: EN pin with 3.3V logic when VREF2 is connected to 5.5V?

Bob Young

Prodigy 60 points

Part Number: PCA9306

Hi,

Is it OK to drive the EN pin with 3.3V logic when VREF2 is connected to 5.5V?

Bob

over 8 years ago

0 fhoude over 8 years ago

TI__Mastermind 23406 points

Hello Bob,

Can you give me a diagram as to how you are proposing to connect the PCA9306. You must connect Vref pin and EN pin together. It can't be separated. The datasheet shows the advised connections.

0 Bob Young over 8 years ago in reply to fhoude

Prodigy 60 points

Proposed circuit based on 8.4 Device Functional Modes truth table.

Interface

Interface forum

PCA9306: EN pin with 3.3V logic when VREF2 is connected to 5.5V?