LMG1025-Q1: Operating 2–3 ICs in parallel to drive a single GaN FET

Jinho Gwon

Prodigy 70 points

Part Number: LMG1025-Q1

Tool/software:

Hello TI Team,

Is it possible to operate 2~3 LMG1025-Q1 in parallel to drive a single GaN FET?

The purpose is to increase the driving strength while maintaining minimal propagation delay, similar to the LMG1025-Q1.

I am curious about the potential side effects that might occur.

Best Regards

2 months ago

0 Walter Zollinger 2 months ago

TI__Genius 9790 points

Hello,

We do not recommend connecting the gate drivers in parallel. There could be a design risk because each gate driver IC can have slight variations in timing specs, and those timing variations can overlap if multiple gate driver outputs are paralleled.

Best,

Walter

0 Jinho Gwon 2 months ago in reply to Walter Zollinger

Prodigy 70 points

Thank you for your kind advice.

Power management

Power management forum

LMG1025-Q1: Operating 2–3 ICs in parallel to drive a single GaN FET