PCA9306-Q1: Vref1 1.8V Vref2 3.7V Compadibility

David Shumate

Genius 9745 points

Part Number: PCA9306-Q1
Other Parts Discussed in Thread: PCA9306

Hi Team,

Can you confirm that the PCA9306 is compatible using a VREF1 of 1.8V and a VREF2 of 3.7V?

I'm assuming yes, based on the statement here:

But the following made me second guess:

Best,

David

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 324800 points

All voltages between the minimum and maximum are supported. The list on p. 1 contains just common examples.

+1 Jack Guan over 3 years ago

TI__Guru 57311 points

Hey David,

Yes you are correct- the device can be used in the configuration (VREF1- 1.8V and VREF2- 3.7V). Voltage translation will be performed as long as VREF1 is at least 1.2V, and VREF2 is at least 0.6V greater than VREF1. The second screenshot you referenced are just some of the common translation nodes.

Regards,

Jack

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PCA9306-Q1: Vref1 1.8V Vref2 3.7V Compadibility