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TIDA-00120: Do I need an external Heat Sink?

Adam H
Prodigy 60 points
Part Number: TIDA-00120

Hello,

I recently made a PCB from the TIDA-00120 schematic and I was wondering if I need an external heat sink for this charge controller. I will connect an 100 watt 18 volt solar panel to a 12 volt battery which will supply 5.5 amps of current to the load. Thanks.

  • 0
    TI__Guru 71526 points

    Adam,

     If you used the same layout as the TIDA design, and are operating within the constraints of the design, then there would be no reason to add a heatsink.  And are you asking to add the heatsink to a specific component, or for the entire board? 

    I have asked the TIDA-00120 designer to comment on this, look for his reply here.

    ~Leonard 

  • 0 in reply to LeonardEllis
    TI__Expert 3860 points

    Leonard,

    You are right. The original design did not use any heatsink. However, it is important to maintain the layout and use 2 oz. Copper for board fabrication. The board was tested up to 20A with a 12V battery.

    Salil