LMG1210: Parallel operation allowed?

JSR

Prodigy 20 points

Part Number: LMG1210
Other Parts Discussed in Thread: LMG2610

Hello, can multiple LMG1210s be ganged in parallel for higher current?

4 months ago

0 Jeremiah Vo 4 months ago

TI__Intellectual 1030 points

Hi Jeff,

Thanks for reaching out.

We would not recommend driving gate drivers in parallel. This is due to the possibility of an output mismatch on the combined gate drive signal.

Is there a requirement in which a singular gate driver would not work such as needing quicker rise and fall times?

Thanks,

Jeremiah

0 JSR 4 months ago

Prodigy 20 points

I'm sorry, I pasted the wrong part number in there. It should be LMG2610. Does the question make more sense now?

0 John Gomez 4 months ago in reply to JSR

TI__Intellectual 2725 points

Hi JSR,

Could you please provide more information about your application such as power level, topology, input voltage, and output voltage?

Thanks.

0 Kyle Wolf 4 months ago in reply to JSR

TI__Expert 5235 points

Hi Jeff,

Is this being used in hard switching or soft switching?

Best,

Kyle Wolf

0 JSR 4 months ago

Prodigy 20 points

Hard switching boost converter, 12V 30A input, 120V 3A ouput.

0 John Gomez 4 months ago in reply to JSR

TI__Intellectual 2725 points

Hi Jeff,

As outlined in Section 8.3.1 of the LMG2610 datasheet, the LMG2610 GaN power FETs are intended to be turned on in either zero-voltage switching (ZVS) or discontinuous-conduction mode (DCM) switching conditions. Regarding device compatibility, if the buck converter can be operated in a manner to abide by the conditions listed above, it would be suitable for the application. Otherwise, this device, currently cannot support hard-switching applications.

Best Regards,

John

0 JSR 4 months ago in reply to John Gomez

Prodigy 20 points

That's very clear, thanks for your help!

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LMG1210: Parallel operation allowed?