No increase in current when using multiple outputs | Cypress Semiconductor
No increase in current when using multiple outputs
Hi, I am trying to drive an N-Channel MOSFET (SI2302ADS-TIhttp://www.mouser.com/ProductDetail/Vishay-Siliconi/SI2302ADS-T1-E3/?qs=jcx%252b0HVgj2b5KfVm3X6q9lulTMzrSQ1bbldi99EzJiE%3d)
I have a PSoC 3 hooked up in the following way:
Powered via USB, set to 5V outputs (I know that this is not recommened as the 5V is unreliable here But I get about 4.8V)
P1, P1, P2, and P2 are my four digital outputs.
I read that:
"iØ “it is possible to increase drive power by connecting multiple GPIO pins. In this case, the levels written to these pins must be the same. Use low value series resistors on each pin so that proper current sharing between the pins takes place.” (http://www.cypress.com/?id=4&rID=28549)
So I have put 100 Ohm resistors after my output.
The problem I am haivng is that I cannot drive the MOSFET with any number of pins.
I am almost positive that it is a problem with me not being able to drive the MOSFET completely but I'm not sure what more I can do.