TCA39416: spec check

Hi Gareth,

We have TCA39306 I3C passive level translator. 

TCA39416 is an I3C level translator with rise/fall time accelerator circuitry.

Both devices are not I3C buffers. TCA39416 provides some boosting circuitry for heavier cap loads, but is not a buffer. 

We currently don't have the means to support an I3C buffer at this time. 

Regards,

Tyler

The LSF0002 contains those two MOSFETs.

The TCA39306 has a third MOSFET so that the gate voltage (EN) can be biased somewhat higher than the lower supply.

It has a third MOSFET between VREF1 and VREF2. (See the LSF application report.)

You can use either device, or discrete MOSFETs, as long as the pull-up resistors are sized correctly for the desired speed.

Hi Gareth,

I agree with Clemens here. 

LSF0002 is a simplified version of the LSF0102 or TCA39306. 

The LSF0102 and TCA39306 have 3 passFET's in the device. 1 between SDA's, 1 between SCL's, and 1 between VREFs. The reference FET is to help setup the gate voltage of the passFET's connecting the I2C channels for faster turn ON speeds. 

The discrete way can be used. Just depends on the application. Sometimes there is space restraints, LSF0002 is a very small device. Discrete implementation may take up more space. Might depend on cost here as well. 

Regards,

Tyler