TPS62260-Q1: Themal Information

Hi Chris-san,

Thank you for your reply.

Please let me ask an additional question.

The value of RθJA indicated in datasheet differs between Automotive device and catalog device.

・The value of RθJA of TPS6226x-Q1 

・・The value of RθJA of TPS6226x　(catalog)

Why is this difference?

Can I refer to the catalog device for the full thermal table?

If I can not refer to it,could you tell me know the thermal infomation of TPS6226x-Q1?

Best Regards,

Yuto Sakai

This is a small difference which results in a very small temperature rise difference due to the low power of the device. Are there thermal concerns in your application? What is the ambient temperature and output power?

Hi Chris-san,

Thank you for your reply.
I don't know the ambient temperature and output power.
I will ask the customer to ask the ambient temperature and output power.

But our customer would like to the devise's themal Information.
Do you have the information?
If yes, Could you tell me that?

Best Regards,
Yuto Sakai

No, we do not have the full thermal table for this device.

Hi Chris-san,

According to Rev.D of the data sheet, the RθJA of the catalog product is 76 ° C / W, which is consistent with RθJA of the Q1 product.

■TPS62260　Catalog datasheet(Rev.D) page 3 "DISSIPATION RATINGS"

As a result, we believe that the thermal information of Q1 product can be referred to the thermal information of catalog product.

Is it OK?

Best Regards,

Yuto Sakai

Yes, this is what I noted in my first reply.

Hi Chris-san,

Please tell me the reason why RθJA changed.
Is something inside the device changed?

Best Regards,
Yuto Sakai