THVD1424: What is the resistance value of the internal pull-ups and pull-downs

JSR

Part Number: THVD1424

Tool/software:

Hello, I'm not finding in the datasheet what is the resistance values of the internal pull-ups and pull-downs on RD, DE, D, TERM_xx, SLR, H/F. What's the minimum resistance value of these pull-ups and pull-downs?

1 month ago

0 Clemens Ladisch 1 month ago

Guru 317370 points

This can be derived from the input leakage current specifications. 5.5 V / 5 µA = 1.1 MΩ.

0 BOBBY 1 month ago

TI__Guru 73971 points

Clemens is correct, you can use the input leakage max/min and Vcc to calculate the minimum resistances. I believe the actual design values are around 2M ohms but since these resistors are not laser trimmed, there can be a large tolerance of 30%. There is a bit of margin built into the leakage specs so 1.1M ohm is quite pessimistic and likely larger than that in real life.

-Bobby

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THVD1424: What is the resistance value of the internal pull-ups and pull-downs