I have to build a dimmable 9 Watts LED lamp circuit using ESP8266 PWM. I will use 9 no of 1 watt 6 volts led in series. The max voltage will be 54 volts and max current will be 166 mA . Now, which MOSFET should I use to control the voltage? I am trying to find a MOSFET in smaller package like SOT-23 with Vds of atleast 65-70V and drain current of nearly 500 mA so that MOSFET can operate without heating issues.
This is the solution I have decided to use. But I am having hard time to find the MOSFET with above required specification. So, I want to know if this is the right method to dim the lamp or is there any other approach for this.
If this method is right than let me know how should I find a right MOSFET?
This is the solution I have decided to use. But I am having hard time to find the MOSFET with above required specification. So, I want to know if this is the right method to dim the lamp or is there any other approach for this.
If this method is right than let me know how should I find a right MOSFET?