# Driving a TC4428 using PC817

I want to drive a mosfet using a mosfet-driver (TC4428). The frequency of turning on-off of mosfet is 5-10 Hz (yes Hz) and duty cycle is 10-20%. I use PC817 as below to make isolation:

As you see, if FLASH1 STROBE be 4.8 volts, voltage of collector will be 0.18 volt. FLASH1 STROBE comes from a ATMEGA16 port. Is there any problem with this design? I mean 0.18 volt on collector and 4.8 volt on FLASH1 STROBE.

• What is the PC817's Vcc? 5v? What is the TC4428's Vcc? 12v? – rdtsc Sep 20 at 18:58
• There is no Vcc pin for PC817. The Vdd for TC4428 is 9 volts. – Babak.Abad Sep 20 at 19:34