Question about Max. Power consumption and  Ψjt of AD8159

Hello,

My customer asks maximum power consumption and Ψjt of AD8159.

Please refer below questions and let me know your answers ASAP.

1) About maximum power consumption of AD8159

In a datasheet of AD8159, there are two kinds of power dissipations.

One is 1.16W which is calculated from current specification in datasheet and the other is 4.26W from absolute maximum ratings (Table.2).

Would you let me know which is the maimum power consumption of AD8159 at normal state?

(Their application is a GPON line card and they are using AD8159 for muxing 2.5Gbps signals.)

 

2) About Ψjt of AD8159

 

In a datasheet of AD8159, I can confirm the value of Φjc.

But for  confirming more precise junction temperature, I need  the value of Ψjt .

 

Would you let me know the Ψjt value of AD8159?

 

 

If you have any questions, please let me know.

 

Regards,

Se-woong

 

 

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  • 0
    •  Analog Employees 
    on Sep 21, 2015 7:25 PM

    Hi Se-Woong,

    I believe we answered your question through direct mail, but for thoroughness I will also post the answer to the ezone post.

    We do not have the ΨJT value available, but we do have the Juntion-to-case (Theta-JC) value listed on the datasheet which should be a close equivalent. The Theta-JC value for the AD8159 is 13 C/W.

    Regards,

    Jarrod

Reply
  • 0
    •  Analog Employees 
    on Sep 21, 2015 7:25 PM

    Hi Se-Woong,

    I believe we answered your question through direct mail, but for thoroughness I will also post the answer to the ezone post.

    We do not have the ΨJT value available, but we do have the Juntion-to-case (Theta-JC) value listed on the datasheet which should be a close equivalent. The Theta-JC value for the AD8159 is 13 C/W.

    Regards,

    Jarrod

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