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LED Driver ICs Forum Discussions

User20588
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First question asked
Level 1
Would you please clarify the type of ERRN pin whether it is open drain switch or it is current source?
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j_oehmen
Moderator
Moderator 10 replies posted 5 replies posted 10 questions asked
Moderator
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...

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j_oehmen
Moderator
Moderator 10 replies posted 5 replies posted 10 questions asked
Moderator
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...
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