TPS7B4253-Q1: Thermal resistance for given copper area

Mahendra Patel1

Expert 3560 points

Part Number: TPS7B4253-Q1

Hello Team,

One of my customer would like to know what is the RθJA for TPS7B4253-Q1 part at 300mm2, 600mm2 and footprint only.

Regards,

Mahendra

over 7 years ago

0 Jason Song over 7 years ago

TI__Mastermind 23361 points

Hi Mahendra,

Please allow some time for us to get you the result.

Regards,
Jason Song

0 Jason Song over 7 years ago in reply to Jason Song

TI__Mastermind 23361 points

Hi Mahendra,

I tried to use WEBENCH to get estimate with 300mm2 copper only on the top layer with footprint only, the RθJA from simulator is 82C/W. When the copper size has increased to 600mm2, the θJA from simulator is 49C/W.

Regards,
Jason Song

Power management

Power management forum

TPS7B4253-Q1: Thermal resistance for given copper area