Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

Nor Flash Forum Discussions

Sade_4357781
Level 1
Level 1

What is the Rating of the TJ Max

Formula

Tj=TA+(Theta JA+PD)

Tj=85C+(36C/W+.62W)

Tj=121.62C?

0 Likes
1 Solution
AS_36
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 250 replies posted

Hi Salvador,

Thank you for contacting Cypress.

You can calculate the maximum operating junction temperature for our devices using the below formula :

Tj = (Theta Ja * P) + Ta

Tj : Junction temperature

Theta Ja : Junction to ambient thermal resistance

P : Power consumption of the device (Operating Voltage * Operating Current)

Ta : Ambient temperature

Please note that the Theta Ja value for S25FL128SAGBHI300 is 38 °C/W.

You can refer to the following application note for more details : https://www.cypress.com/file/210756/download

Please let us know if you have any further queries.

Regards,

Apurva

View solution in original post

0 Likes
2 Replies
AS_36
Moderator
Moderator
Moderator
500 replies posted 250 solutions authored 250 replies posted

Hi Salvador,

Thank you for contacting Cypress.

You can calculate the maximum operating junction temperature for our devices using the below formula :

Tj = (Theta Ja * P) + Ta

Tj : Junction temperature

Theta Ja : Junction to ambient thermal resistance

P : Power consumption of the device (Operating Voltage * Operating Current)

Ta : Ambient temperature

Please note that the Theta Ja value for S25FL128SAGBHI300 is 38 °C/W.

You can refer to the following application note for more details : https://www.cypress.com/file/210756/download

Please let us know if you have any further queries.

Regards,

Apurva

0 Likes
Sade_4357781
Level 1
Level 1

Thank you.

I was also wondering if you have any data on the Maximum Junction temperature the device can support?(not operating Tj)

0 Likes