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TPSM8D6B24: Would like to measure Tj(Junction temperature)

Part Number: TPSM8D6B24

Hi team,

My customer would like to measure Tj(Junction temperature) of this device. Could you please answe below questions? 

1. Can the value of temp which can be obtained from PMbus be leveraged as Tj?

2. If there are any ways to easily measure Tj of this device, could you please let me know?

Best regards,

Shunsuke Yamamoto

  • Hello Yama, 

    yes, the value you obtain thru PMBUS is Die temperature which is junction. 

    The other way to measure junction is to measure top case temperature and based on power dissipation, you can calculate the junction form it using the Junction-to-top  parameter below