TPS2596: Should Power pad connect GND?

Takuya Terada

Expert 5115 points

Part Number: TPS2596

Hi team,

My customer use flow soldering.

so connecting thermal pad to GND is difficult.

is it okay to leave thermal pad open, if they dont care about thermal dissipation?

best regards,

Takuya

over 5 years ago

0 Praveen GD over 5 years ago

TI__Guru 57737 points

Hi Takuya,

It is okay to leave the thermal PAD not connected. As you understand, the downside would be that the RQJA of the IC will increase and cause the IC to reach thermal Shutdown faster in case of fault conditions.

When the thermal PAD of TPS2596 is not soldered, you can expect the RQJA to be similar to that of TPS25921 as shown below,

0 Takuya Terada over 5 years ago in reply to Praveen GD

TI__Expert 5115 points

Hi Praveen,

thank you very much!

best regards,

Takuya

Power management

Power management forum

TPS2596: Should Power pad connect GND?