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LMG1025-Q1: Gate Resistance Values suggestion

Part Number: LMG1025-Q1

Hi team,

Our customer would like to know what Gate Resistance Value is needed in their application for LMG1025QDEETQ1.
Here's the information we got from the customer:

The customer is using GanFET driver “LMG1025QDEETQ1” to drive the GanFET “GS61004B-MR”

As per datasheet information, it is recommended to use at least a 2-Ω resistor at each OUTH and OUTL to avoid voltage over stress due to inductive ringing.

For customer application, suggest the minimum and maximum gate resistance value.

Drive pulse characteristics :

Rise time/Fall time = ~1nsec.

Pulse-ON time(Max) = 20nsec

Pulse repetition time = 1msec

Pulse shape = square pulse

Parasitic components of GanFET “GS61004B-MR” :

Lds (drain to source inductance in ON state) = 1.3nH

Ls (source inductance) = 450pH

Lg_loop (gate loop inductance) = 1.2nH

Internal gate resistance = 0.9 Ohm


Please let me know if you have any questions for the customer.

Thanks,

Jonathan