Newbie level 6
Above is my design for buck converter. As i test my buck converter by supply 12V to pin 2 (IN) of IR2104 driver from dc power supply and 5v to pin 3 (SD), the mosfet is turn on. However, when i connect my buck converter to the microcontroller which supply average PWM value of 5V 50kHz 50% duty cycle to pin 2 while SD pin remain 5v, the mosfet is fail to turn off. Is there any voltage minimum value for pin 2 (IN) in order to turn on the mosfet?