TXB0304: Input Driver Requirements

Atsushi Yoshimoto

Part Number: TXB0304

Hi Team,

You mention at least 3mA in the input driver requirements, but under what conditions do you expect the current to be found?
Could it be that the current value at VCC/2 is at least 3mA?

Best regards
Atsushi

over 3 years ago

0 Clemens Ladisch over 3 years ago

Guru 244360 points

In theory, the current needed is 3.6 V / 2 / 1 kΩ = 1.8 mA. But in practice, the switching threshold might not be at V_CC / 2, and the resistors have loose tolerances, and there is a certain safety factor.

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TXB0304: Input Driver Requirements