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Hi all,
Please tell me about the 1EDF5673.
I have two questions.
1.Does 1EDF5673 have the circuit function which is similar to the active miller clamp circuit?
If not, please let me know the reason the function isn’t needed.
2.Is it correct that VGS is about t3(=20ns) shorter than PWM at first pulse?
The first pulse is the light blue part below.
Best regards,
MS
Solved! Go to Solution.
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Hi,
1.Active miller clamp can prevent Return ON, in this case Coupling capacitor provides the negative voltage which will avoid Return ON during normal operation.
This driver is having special safe condition, if it detects that there is no PWM sent for more than 32us it brings the vgs down to -VDD. This operation will help to prevent the parasitic turn on .
2.Time delay t3 is intentionally given to discharge the capacitor Cgs.
Regards,
Vignesh kumar
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Hi,
1.Active miller clamp can prevent Return ON, in this case Coupling capacitor provides the negative voltage which will avoid Return ON during normal operation.
This driver is having special safe condition, if it detects that there is no PWM sent for more than 32us it brings the vgs down to -VDD. This operation will help to prevent the parasitic turn on .
2.Time delay t3 is intentionally given to discharge the capacitor Cgs.
Regards,
Vignesh kumar