What is the best system to find the power loss of the gate driver?

Devon King

Other Parts Discussed in Thread: LM5141-Q1

I am trying to design a heat sink system for this gate driver. To do this I am trying to find the average power loss across the device. The data sheet does not display a minimal or maximum excepted loss of power. I see there are two efficiency curves on the data sheet, but I do not know which one to choose. How can I estimate the power loss?

over 4 years ago

0 Frank De Stasi over 4 years ago

TI__Guru 72915 points

Hello

If you can tell me what device you are referring to and what your

application requirements are, I will be happy to help you

with your questions.

Thanks

0 Devon King over 4 years ago in reply to Frank De Stasi

Prodigy 30 points

I'm a using a LM1514-Q1 Synchronous dual buck controller for a Four Phase Interleaved MRSCC Buck converter with a 48V to 12V at 1.5KW output.

0 Wei Zhang over 4 years ago in reply to Devon King

TI__Intellectual 2061 points

Hello Devon, Can you please help confirm the part number? We will connect you to the right experts.

0 Devon King1 over 4 years ago in reply to Wei Zhang

Prodigy 10 points

Where can I find the part number for the device. I do not have a physical one and I am using it in Pspice. The device is LM5141-Q1 is the most information I have.

0 Devon King over 4 years ago in reply to Wei Zhang

Prodigy 30 points

I cannot find where to find the part number on the device. I was told to use this device as part of a team project. The information I have is that it is the LM5141-Q device.

0 Frank De Stasi over 4 years ago in reply to Devon King

TI__Guru 72915 points

Hello

Let me try and find a device that would fit your requirements.

I will get back to you as soon as possible.

Thanks

0 Frank De Stasi over 4 years ago in reply to Frank De Stasi

TI__Guru 72915 points

Hello

The closest thing I can find is shown in the link here.

If you still have questions about calculating power dissipation in a gate driver, let me know and I will

try to help with that.

Thanks

www.ti.com/.../PMP22396

0 Frank De Stasi over 4 years ago in reply to Frank De Stasi

TI__Guru 72915 points

Hello

I will close this post due to inactivity.

You may re-open if you have more questions.

Thanks

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What is the best system to find the power loss of the gate driver?