LM3423-Q1: for 60W LED module

Sam Ting

Part Number: LM3423-Q1
Other Parts Discussed in Thread: TPS92691, TPS92692

Tool/software:

Hi team,

My customer is looking for a high power LED driver solution. The specs are 24V input and 60W output (40V/1.5A). The main concern is the operating ambient temperature up to 90C.
Is LM3423-Q1 suitable for this application? or do we have more suitable solutions? Thanks!

Regards,
Sam Ting

3 months ago

+1 Daniel Louis 3 months ago

TI__Expert 5670 points

Hi Sam,

Most automotive grade parts will have similar maximum temperature ratings. We have many ICs that can accommodate the input/ output specifications you are requesting. However, proper thermal management is left up to the customer. We have a few devices which can be operated in multiple phases which can help distribute the current, but will increase cost due to redundant component selection.

I don't know the details of your customers design so I will suggest a few parts.

TPS92691,
TPS92692,
TPS92682

Please let me know how I can further assist you. I am also happy to set up a meeting.

Best,
Daniel

0 Sam Ting 3 months ago in reply to Daniel Louis

TI__Expert 3550 points

Hi Daniel,

My customer was also studying TPS92691 for the application, I will discuss the detail design with you offline. Thanks!

Regards,
Sam Ting

+1 Daniel Louis 3 months ago in reply to Sam Ting

TI__Expert 5670 points

Hi Sam, I am starting to work on this now and it will likely take me a few days to complete.

Best,
Daniel

+1 Daniel Louis 3 months ago in reply to Daniel Louis

TI__Expert 5670 points

I modified the BOM for the TPS92691-752EVM according to the specifications provided and sent it to Sam

0 Sam Ting 3 months ago in reply to Daniel Louis

TI__Expert 3550 points

Daniel,

Thanks for your great support!

Regards,
Sam Ting

Power management

Power management forum

LM3423-Q1: for 60W LED module