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DCP021205: Temperature Management ( Heatsink )

Jonel Pericon
Prodigy 50 points
Part Number: DCP021205

Tool/software:

I am using three DCP021205U modules to provide a 2A load current with a 5V output and a 12V input voltage. Currently, I am experiencing high temperatures, which may be due to load balancing issues. I would like to ask if using an IC heatsink could help dissipate the heat effectively.

  • 0
    TI__Mastermind 32885 points

    The lead frame serves as an efficient heatsink and you can see some of the things we recommend for IIB (integrated isolated bias) DC/DC modules. Use of 2 ounce copper on top/bottom and then connect top/bottom (even internal PCB copper layers if available) through thermal via arrays. This is what we do for isolated regulated modules with integrated transformer and you can see UCC14141 data sheet, section 9.5  and the EVM User Guide, section 6 as good examples.

    I would start with convection cooling using PCB copper and thermal vias first and then maybe consider an extruded heatsink if additional thermal mitigation is needed.

    Steve