Hi All
I'm looking to use a p-channel MOSFET as a logic level switch. I'm working between 0 and 5V, and want the FET to switch on (i.e. saturated) at 0V and to switch off at a positive voltage less than 5V.
I've been playing with different spice models (e.g. IRLML6302, BSS84, etc.) but whilst they all have positive gate threshold voltages Vgs, I'm still operating in the linear region at 0V (i.e. Vgs is the 'turn off' voltage, not the 'turn on' voltage). I want the FET to be saturated at 0V.
Does anyone know of any logic level p-channel MOSFETs that can do this? Or, perhaps, I'm missing something and can obtain the desired result using an N-channel MOSFET?
Thanx!
I'm looking to use a p-channel MOSFET as a logic level switch. I'm working between 0 and 5V, and want the FET to switch on (i.e. saturated) at 0V and to switch off at a positive voltage less than 5V.
I've been playing with different spice models (e.g. IRLML6302, BSS84, etc.) but whilst they all have positive gate threshold voltages Vgs, I'm still operating in the linear region at 0V (i.e. Vgs is the 'turn off' voltage, not the 'turn on' voltage). I want the FET to be saturated at 0V.
Does anyone know of any logic level p-channel MOSFETs that can do this? Or, perhaps, I'm missing something and can obtain the desired result using an N-channel MOSFET?
Thanx!