In my project I am using mosfet 2n7002 and it4140 device to turn on 24v buzzer.
Connections are as shown in the below diagram. But the problem is when I connect to power supply without giving any input to the gate pin of mosfet, I am getting output from the it4140 device.
Mosfet source pin is connected to gnd, drain pin is connected to PIN number 1 that is input to it4140, it4140 pins 4 and 2 are connected to 24v, it4140 pin 3 is connected to positive part of buzzer and mosfet gate pin is connected to arduino.
After I connect to power supply without giving any input to gate drain and source pins are connected each other if I remove power after few seconds it will disconnect.
Can someone please help me.
Thank you in advance
mosfet and it4140.pdf (45.9 KB)