SN65HVS882: Why do we need 1.2k resistor in series?

Harsh b

Intellectual 390 points

Part Number: SN65HVS882

why do we need to use the 1.2K resistors in series with input?

what type of resistor do we need to use?

my IP level is 24V

over 3 years ago

0 Rami Mooti1 over 3 years ago

TI__Mastermind 23373 points

Harsh,

This is discussed in detail within the datasheet:

You're using R1 to adjust the trip point for the ON condition.

As for the resistor you'd want, one that can handle 1/4 Watts is recommended.

Hope this helps,
Rami

Interface

Interface forum

SN65HVS882: Why do we need 1.2k resistor in series?