Other Parts Discussed in Thread: TXS0102
Hi - I'm planning to use LSF0102 in one of our designs to level translate the I2C signals from 3.3V domain to 1.8V domain. The I2C from a Microcontroller is connected B side is 3.3V. The I2c to the peripheral is connected to A side is powered off 1.8V. The 3.3V is always applied to the system (it is battery powered) however the 1.8V may be switched off. Does the LSF0102 have Voltage Isolation and the outputs tri-stated if the 1.8V rail is not powered but 3.3V receives Power? Please Note - the EN is permanently connected to 3.3v to B side as per the Usage Guidelines - so the Level translator is always enabled.
thanks
regards, R