PCA9509 voltage range

[romanbuerkle]

Hello guys,

This IC hast two supply voltage inputs VCCA (VCCB - 1) and VCCB.

For example: VCCB 3V3 and according to the datasheet 2V3 for VCCA as a maximum.

Question:

Is it possible to use a 2V5 supply voltage for VCCA(supply voltage range)?

[TomasVaverka]

Hello Roman,

Unfortunately not, VCC(A) max is VCC(B) - 1.0V = 3.3V -1.0V = 2.3V (max).

Best regards,

Tomas