here image shows my micro controller based project.
I need to drive large display so I have used uln2803 Ic.
also I need to multi plexing.
So I have used common anode to multiplex , but there I can't use relay.
I selected BC327 but I understood that I can't turn off it using 5v micro controller output because emmiter in 12V.
I need mosfet somthing really same as relay. when I give 5V it should turn on or off and for 0V it should do the inverse (on or off).
it's maximum current should be about 500mA because display needs 250mA when it fully lit.
any one can help me.
please suggest me a mosfet.
if there is IC which has 4 switches like I mentioned also very good because I need 4 mosfets.
thank you
I need to drive large display so I have used uln2803 Ic.
also I need to multi plexing.
So I have used common anode to multiplex , but there I can't use relay.
I selected BC327 but I understood that I can't turn off it using 5v micro controller output because emmiter in 12V.
I need mosfet somthing really same as relay. when I give 5V it should turn on or off and for 0V it should do the inverse (on or off).
it's maximum current should be about 500mA because display needs 250mA when it fully lit.
any one can help me.
please suggest me a mosfet.
if there is IC which has 4 switches like I mentioned also very good because I need 4 mosfets.
thank you