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CSD18543Q3A: the temperature is too high

Part Number: CSD18543Q3A
Other Parts Discussed in Thread: CSD18540Q5B, CSD18531Q5A, CSD18533Q5A

Dear Engineers,

We have selected the TI components CSD18543Q3A design a 50W LED worklamp driver PCBA. We found the temperature is too higher, arrived 82°C;You known this lamp have a battery. The battery can not work in this spec-- 82°C. Could you please provide support during our designing. You will be appreciated for your support.
We are looking for forward form you! 

Thanks!
Best Regards

  • Jenny,
    Could you send the schematic over? Or describe how the FET is being used in the application? If it is low frequency and just acting as a load switch, it is possible that you just need to use a lower resistance FET.


    In order of highest to lowest resistance, you could try the following: CSD18533Q5A, CSD18531Q5A, CSD18540Q5B