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TPS7A4501-SP: Using PCB thermal calculator

Part Number: TPS7A4501-SP

Hi, I just found PCB thermal calculator. In which we need to enter the device number, the parameter theta-jc-bottom is automatically updated. Then we need to enter the power dissipation and the system reference or ambient temperature. It gives a graph of temperature vs PCB copper coverage area. I am not able to understand this PCB copper coverage area. Can some please explain how to use and work with PCB copper coverage area ?

  • Hi,

    Copper coverage refers to the area of the copper available on the PCB for heat to spread into underneath the IC - basically, if your PCB has more copper to sink heat into it helps keep temperatures down. It looks like there is a document on that page that describes the definitions a bit more and explains important factors and design considerations.