I think i have found a good current source for my TLC5940 cube,
Manufacturer Part No: IRF3205
Specification
Mosfet Type N-channel
Current Rating 110A
Rds (On) 8m?
Voltage Rated 55V
They are under $1 each, and seem to be a good n-channel source. I need about 1amp max.
Im still uncertain about sinking on the shift register cube. I had originally built it with 2 shift registers to sink, but I think I will need lot more than 2 shift registers for that.
I've ordered some of these p-channel mosfets, we will see if they will work.
Manufacturer Part No: IRF9540
Description
MOSFET
Transistor Type:MOSFET
Transistor Polarity:P Channel
Drain Source Voltage, Vds:-100V
Continuous Drain Current, Id:-23A
On Resistance, Rds(on):117mohm
Rds(on) Test Voltage, Vgs:-10V
Im still interested in other options, ULN ?
For what im doing, I only need 1amp max, are there other parts that might be more suitable? These mosfets seem way bigger than I need. I think I could also do the same thing with a pair of ULN2803s, but I think that would be less energy efficient, and probably a worser way to do it if its running on batteries.
What are some good ways to source/sink