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Part Number: TIDA-00915
We are trying to use LMG3140 in designing an inverter.....we understand now that this power switch does not require FWD …...our question is during the 3rd quadrant operation or when the inverter is in braking mode....do we need to give that LMG3410 any control signal or should we leave it switched off?
If we give it a control signal....does this mean that LMG3140 is a bi-directional switch?
LMG3410 is not a bi-directional switch. Similar to a diode, it can conduct from source to drain. However, the voltage drop for reverse current would be a little higher than a diode. As long as you keep the dead time or 3rd quadrant conduction time short, it should be okay. Also to reduce loss, you can also turn it on for synchronous rectification.
Thanks and regards,
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