TPS61170: Power dissipation of the IC

Albin Vinu30

Part Number: TPS61170

Hi,

I like to compute the power dissipation of TPS61170 to ensure the temperature rise . (MOSFET and current sense resistors are embedded into the device).

Could you please provide the formula and required data to compute. Iam using this device for boost converter.

Thanks,

Albin

over 5 years ago

0 Helen chen over 5 years ago

TI__Mastermind 40080 points

Albin,

We didn't have the formula. But we can make a rough estimate for you. What is your Vin, Vo and Io?

0 Albin Vinu30 over 5 years ago in reply to Helen chen

Prodigy 210 points

Hi Helen,

Below are the data. However, is it possible to give relation or variation with respect to output current ? Because, Vin and Vo will remain same but, there will be a change in Io in future.

Vin : Min=6V; Typ=6.5V; Max=7V

Vo : Min=11V; Typ=12V; Max=13V

Io : 150mA Max

Thanks for the quick response.

Regards,

Albin

0 Helen chen over 5 years ago in reply to Albin Vinu30

TI__Mastermind 40080 points

Will give the result to you soon. Please wait in patience.

0 Helen chen over 5 years ago in reply to Helen chen

TI__Mastermind 40080 points

Dear Sir,

when Io=0.15A, the IC loss is around 60mW, when Io=0.2A, the IC loss is around 80mW; when Io=0.3A, the IC loss is around 120mW.

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TPS61170: Power dissipation of the IC