I have been trying to make a pulse generator using Arduino Uno Rev 3 to drive MOSFET driver, which then drive MOSFET, by using TTL signal from Arduino. (5V in as Vcc and about 4.8 V in as TTL signal)
I am currently using Arduino Uno Rev 3 to supply voltage to MOSFET driver, IXDN614PI, which is connected to a MOSFET.
R2 and R3 are shunt resistors to prevent any damages from reverse flow of voltage when MOSFET and MOSFET driver is switching on and off.
A CMOS gate also draws much less current from a driving gate output than a TTL gate because MOSFETs are voltage-controlled, not current-controlled, devices. This means that one gate can drive many more CMOS inputs than TTL inputs. The measure of how many gate inputs a single gate output can drive is called fanout. 120 V MOSFET are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for 120 V MOSFET. MIC4101YM TR 100V HalfBridge MOSFET Driver 2A SOURCE/SINK CURRENT TTL INPUT (Lead Free). MIC4102BM PPCN120002; Replace with MIC4102YM. Improve this question. Follow edited Mar 25 '20 at 23:15. 23.9k 29 29 gold badges 112 112 silver badges 220 220 bronze badges.
However, when I run the Arduino, it starts off fine showing good square TTL signals, however as time passes, the driver no longer generate enough voltage to drive the MOSFET or even shows some signs of damages on signal output to the MOSFET.
Ttl Mosfet Models
And when I even removed the MOSFET and try to see pulse generation from MOSFET driver by oscilloscope, then it has same problem.
MOSFET driver runs for up to 30 minutes then dies down.
It no longer shows pulse at all or shows some damaging pulse, not a square, but a deformed square.
I have attached the schematic of connection that I have made for driving MOSFET driver.
Ttl Mosfet Videos
May I get some suggestions on how to generate constant TTL signal from MOSFET driver?