Hi,
I'm in the process of designing the power part for my PWM Led Driver.
PWM, MCU basically the digital part is done. I am trying to make around 16 Channels of high current PWM output.
Each channel will be driving around 100 pieces of 5V 0.15W single color LED that I got. I think 200Hz should be more than enough for dimming effect. So the mosfet output will be 200Hz/5V/4A(to be safe)
I'm very new to analog design and having a hard time deciding which MOSFET. My PWM is rated at 7V/20mA, of course I can change my PWM generator IC to suit the MOSFET's part if needed.
I have read many articles on how to choose a suitable MOSFET but still can't conclude anything yet. And also, do I need a MOSFET driver? I am confused here.
When I need a MOSFET driver and when I don't?
When a datasheet says a MOSFET can handle 100V. Does that mean it can handle 5V as well? Or I need to get a 5V Mosfet?
I'm in the process of designing the power part for my PWM Led Driver.
PWM, MCU basically the digital part is done. I am trying to make around 16 Channels of high current PWM output.
Each channel will be driving around 100 pieces of 5V 0.15W single color LED that I got. I think 200Hz should be more than enough for dimming effect. So the mosfet output will be 200Hz/5V/4A(to be safe)
I'm very new to analog design and having a hard time deciding which MOSFET. My PWM is rated at 7V/20mA, of course I can change my PWM generator IC to suit the MOSFET's part if needed.
I have read many articles on how to choose a suitable MOSFET but still can't conclude anything yet. And also, do I need a MOSFET driver? I am confused here.
When I need a MOSFET driver and when I don't?
When a datasheet says a MOSFET can handle 100V. Does that mean it can handle 5V as well? Or I need to get a 5V Mosfet?