Hello,
I need to control a high current load, for that I am using a microcontroller, the MOSFET Driver MIC5018 and the MOSFET HUF75344P3.
Right now, I am just making small tests and I am using resistors and a LED to test the circuit, I have attached the schematic.
My problem is that the LED doesn’t turn off, I need to add a pull-down resistor bigger than 200kOhms on the gate, if it’s lower it will keep the LED always off. Another problem is that when I use a 200k ohms resistor, the VGS will lower too much to 2.7 Volts. If I use the multimeter as resistor (10 Mohms), the VGS will be 7.8V, I think that's enough to obtain a current of 10A in the future.
Shouldn't the driver MIC5018 be able to handle this? Shouldn't it be able to pull-down the gate?
Thank you in advance
I need to control a high current load, for that I am using a microcontroller, the MOSFET Driver MIC5018 and the MOSFET HUF75344P3.
Right now, I am just making small tests and I am using resistors and a LED to test the circuit, I have attached the schematic.
My problem is that the LED doesn’t turn off, I need to add a pull-down resistor bigger than 200kOhms on the gate, if it’s lower it will keep the LED always off. Another problem is that when I use a 200k ohms resistor, the VGS will lower too much to 2.7 Volts. If I use the multimeter as resistor (10 Mohms), the VGS will be 7.8V, I think that's enough to obtain a current of 10A in the future.
Shouldn't the driver MIC5018 be able to handle this? Shouldn't it be able to pull-down the gate?
Thank you in advance
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