Can't find right I2C level converter for our application

Benjamin Lonske

Other Parts Discussed in Thread: PCA9306, TCA9617A

We need an I2C level converter where VREF1 is from 2.1V-3.7V and VREF2 is 1.8V. The PCA9306 is an obvious choice, but it requires there to be a least a 0.7V difference between the two Vcc's. Any suggestions?

over 12 years ago

0 Brian Berner over 12 years ago

TI__Mastermind 30310 points

Ben,

The closest fit for your application would be the TCA9617A.

The voltage range on the B-side of this device is 2.2 V< VCCB< 5.5 V

If you could guarantee that your B-side voltage will not drop below 2.2 V, then this product will work.

-Brian

0 Benjamin Lonske over 12 years ago in reply to Brian Berner

Prodigy 75 points

You're right, that would work. Thanks.

Since posting, I also discovered that the MAX14595 will work for our application.

Ben

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Can't find right I2C level converter for our application