Hello,
I currently have a circuit that is the following setup.
Sinking Pulse + Pullup Resistor -> 74HC04 (hex inverter) -> IRF630N
There is no resistor on the gate.
This circuit has been working for me and the and the fets are switching about 3 amps each.
The 74HC04 sources and sinks current.
Couple issues I think I may have;
No resistor on the gate.
Gate threshold voltage is stated 2 min 4 max and I am driving it at 5v.
VGS(th) Gate Threshold Voltage 2.0 4.0 V VDS = VGS, ID = 250μA
Gate voltage is.
VGS Gate-to-Source Voltage ±20 V
Datasheets:
http://www.irf.com/product-info/datasheets/data/irf630n.pdf
http://www.nxp.com/documents/data_sheet/74HC_HCT04.pdf
The fets are driving lighting loads (High power LED @ 12v)
Thank you for your time,
Derek L
I currently have a circuit that is the following setup.
Sinking Pulse + Pullup Resistor -> 74HC04 (hex inverter) -> IRF630N
There is no resistor on the gate.
This circuit has been working for me and the and the fets are switching about 3 amps each.
The 74HC04 sources and sinks current.
Couple issues I think I may have;
No resistor on the gate.
Gate threshold voltage is stated 2 min 4 max and I am driving it at 5v.
VGS(th) Gate Threshold Voltage 2.0 4.0 V VDS = VGS, ID = 250μA
Gate voltage is.
VGS Gate-to-Source Voltage ±20 V
Datasheets:
http://www.irf.com/product-info/datasheets/data/irf630n.pdf
http://www.nxp.com/documents/data_sheet/74HC_HCT04.pdf
The fets are driving lighting loads (High power LED @ 12v)
Thank you for your time,
Derek L