PCA9306: one question about the bias power of PCA9606

Oliver Ou

Part Number: PCA9306

Hi,

For layout issue, customer wants to use different power source for VREF2( EN) and Rpu, the configuration is shown in below.

can this connection work well? or VREF2 must use the same voltage with the pull up resistor?

Thanks.

over 7 years ago

0 BOBBY over 7 years ago

TI__Guru 73541 points

Hey Oliver,

If the voltages on Vref2 and pull up on side 2 are the same then it will still work. Issues may occur if side 2 pull up voltage is less than Vref1 though.

Thanks,

-Bobby

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PCA9306: one question about the bias power of PCA9606