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LED Driver ICs Forum Discussions

GregD
Level 1
Level 1
First question asked Welcome!

regarding the BCR420UE6327HTSA1 - the datasheet indicates Rext is determined by refering to a graph. 

That graph only covers output currents up to 100mA, but the device is capable of up to 250mA.  
How can the Rext values be determined for output currents over 100mA?
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Sodum
Moderator
Moderator
Moderator
10 likes received 5 likes given 25 solutions authored

Hello @GregD ,

Thank You for posting your query on Infineon Community.

The maximum output current rating of "BCR 420U E6327" is 200mA. 

Please find the below image from datasheet that has Rext in X-axis vs Iout on Y-axis. This plot cover the typical operating range of the device.

Sodum_0-1672372058258.png

Please find the below link for the datasheet of the device,

https://www.infineon.com/dgdl/Infineon-BCR420U-BCR421U-DataSheet-v02_02-EN.pdf?fileId=5546d4626102d3...

Feel free to contact us for any further queries.

Regards,

Premsagar S

 

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Sodum
Moderator
Moderator
Moderator
10 likes received 5 likes given 25 solutions authored

Hello @GregD ,

Thank You for posting your query on Infineon Community.

The maximum output current rating of "BCR 420U E6327" is 200mA. 

Please find the below image from datasheet that has Rext in X-axis vs Iout on Y-axis. This plot cover the typical operating range of the device.

Sodum_0-1672372058258.png

Please find the below link for the datasheet of the device,

https://www.infineon.com/dgdl/Infineon-BCR420U-BCR421U-DataSheet-v02_02-EN.pdf?fileId=5546d4626102d3...

Feel free to contact us for any further queries.

Regards,

Premsagar S

 

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