AnsweredAssumed Answered

PCA9509 voltage range

Question asked by Roman Buerkle on Sep 22, 2016
Latest reply on Sep 29, 2016 by Tomas Vaverka

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.


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