I think the first case is the same as the second.Sounds about right for that kind of power. Note that it will not survive the stall current for more than say a minute.
What strikes me is that the NTD20P06 claims 65W dissipation when mounted on a 1 in square pad, with 25°C ambient. Either their definition of ambient temperature is completely different from mine, or they are straight out lying.
On the other hand the IRLR024N has a much more reasonable claim of similar 45W, but when the drain pad of the transistor is held at 25°C, which is a way more believable figure.
Do you see that there is no way to directly turn OFF the P-Channel MOSFETs with a 5V signal (if the top of the H-bridge is at 12 V).Thanks. Do you suggest that I use gate bleeder resistors with all four MOSFETs?
Yes, they are logic level, but that logic-level voltage is measured from gate-to-source (Vgs), not gate-to-ground.Thanks for the reply. Why will the transistors be on at the same time if I apply a logic level (5V) ?
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by Luke James
by Luke James
by Steve Arar