How is the output structure of ERRN pin of LITIX BASIC+ devices?
The ERRN pin is implemented as an open drain output with an internal current limitation.
A pull up resistor has to be placed externally to ensure the desired functionality. To ensure functionality at least 10kOhm are recommended. A typical used value for RERRN is 22kOhm as used in our EMC test report.
Have a look in the Basic+ Appnote "Diagnosis and fault management" available on the Infineon webpage for further details: https://www.infineon.com/cms/en/product/power/lighting-ics/litix-automotive-led-driver-ic/litix-basi...