TXB0108: Current consumption calculation

Hello Clemens,

May i know what is CLN in equation 9 in the above attached link , If i connect this to load (FPGA) then the input capacitance of Load(FPGA) right.

Also if it is translator which voltage i should consider for VCC in eq 9 , is it VCCA or VCCB.

Regards,
Prasanna G

Yes, C_Ln is the load capacitance of the n-th output.

Move the V_CC² factor into the summands (like in equation 8), then you can use the two different values.

Hi, Clemens

Then as per eq8 , VCCA i should include in PT and VCCB should be substituted in PL (if a is input and b is output), Is it right or any other terminology.

Regards,
Prasanna G

Yes, use the VCC of the signal being switched.

Hello Clemens,

Thanks for the information,

Here it is a bidirectional translator, then how i should consider, like which is max that one(A to B /Bto A) right.

Regards,
Prasanna G

That depends in which direction the signal actually goes.