TPS61194: estimate the power dissipation and efficiency

user3894159

Part Number: TPS61194

In my design of TPS61194, Vin =14V, f=397KHz, use 4 strings of LED(7 LED for each string, Vf=3V), and the total current is 274mA, please help me to estimate the Power dispisition and effiency. thanks!

over 5 years ago

0 Yuting Shao over 5 years ago

TI__Genius 13001 points

Hi,

For your requirement, we have no accurate data .Pls. apply for TPS61194EVM on ti.com and have a test.

BR,

Robin

0 user3894159 over 5 years ago in reply to Yuting Shao

Prodigy 210 points

why can't have accurate data? what other information do you need? we have no TPS61194EVM, and our customer want to know the result .

0 Yuting Shao over 5 years ago in reply to user3894159

TI__Genius 13001 points

Hi,

Pls. provide the inductor value and input and output cap.

0 user3894159 over 5 years ago in reply to Yuting Shao

Prodigy 210 points

please refer to the pic below, thanks!

0 Yuting Shao over 5 years ago in reply to user3894159

TI__Genius 13001 points

Hi,

OK, pls. wait for further test result.

BR,

Robin

0 user3894159 over 5 years ago in reply to Yuting Shao

Prodigy 210 points

hi Yuting:

have you get the test result?thanks!

0 Yuting Shao over 5 years ago in reply to user3894159

TI__Genius 13001 points

Hi,

I have apply for the EVM and I will help you test once I got the EVM.

BR,

Robin

0 user3894159 over 4 years ago in reply to Yuting Shao

Prodigy 210 points

Hi Yuting:

Have you got the EVM and test the power dissipation and efficiency？

can the dissipation and efficiency result be calculated through the data i gave you？

I remember there is formula that can calculate dissipation and efficiency of DCDC.

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TPS61194: estimate the power dissipation and efficiency