ZHCSIW6L October 2000 – October 2018 LM4040-N , LM4040-N-Q1
PRODUCTION DATA.
Using an LM4040-4.1, select an appropriate RS to sufficiently power the device. Set the target IR for 1 mA. With an input voltage of 5 V, the resistor can be calculated:
The closest available resistance of 909 Ω is used here, which in turn yields an IR of 994 μA.