BCR431U Low Voltage Drop LED Driver ICFunctional description3Functional descriptionLED current configuration The LED current is configured by the external resistor Rset at pin RS. The current flowing into pin LED is proportional to the current flowing out of pin RS by a ratio of about 760:1. Therefore, the LED current depends on the value of Rset. Figure 3Relation between ILED and Rset Datasheet 4 1.0 2020-03-03 Document Outline Features Advantages with respect to discrete solutions Potential Applications Description Table of contents 1 Application circuit 2 Pin configuration 3 Functional description 4 Electrical characteristics and parameters 5 Package dimensions 6 References Revision history Disclaimer