About the specs of HMC948 and HMC532

Hi all,

Please let me know the following data of HMC948LP3E and HMC532LP4E.

<Need Information>
  - theta-JA
  - theta-JC

Best Regards,

Hiro

Parents
  • +1
    •  Analog Employees 
    on Nov 22, 2019 2:45 PM 11 months ago

    Hi Hiro, 

    For legacy HMC products like these, theta-JA was not derived. It's pretty useless (my opinion) as this is not the primary thermal path and generally derived using a JEDEC board that is not representative of the actual application. The JEDEC board will not match the recommended board thickness, material, footprint, etc. - only somewhat useful for comparing thermals to the same product that a competitor may offer in the same package. 

    Theta-JC = Thermal Resistance (junction to ground paddle) on the HMC532.

    Best Regards, 

    Marty 

Reply
  • +1
    •  Analog Employees 
    on Nov 22, 2019 2:45 PM 11 months ago

    Hi Hiro, 

    For legacy HMC products like these, theta-JA was not derived. It's pretty useless (my opinion) as this is not the primary thermal path and generally derived using a JEDEC board that is not representative of the actual application. The JEDEC board will not match the recommended board thickness, material, footprint, etc. - only somewhat useful for comparing thermals to the same product that a competitor may offer in the same package. 

    Theta-JC = Thermal Resistance (junction to ground paddle) on the HMC532.

    Best Regards, 

    Marty 

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