Hi all,
First let me just say that I am a novice, I try to muddle my way along but sometimes I need advice, so here I am.
I have two DC-DC power supplies one 3.3v 100mA and the other 3.8v 3A all from a car / truck supply (+12 - +24v) whilst my design appears to work sometimes the MCU locks and I think this is due to the load dump / spike problem.
Can anyone take a look at my attached schematics and advise on adding a protection doide to help things or anything else nice and simple.
Thx all
P.S. Please don't just say "zener diode" can you give me a SMT part number as I get a little more than confused when I type "zener diode" in google or even RS.
First let me just say that I am a novice, I try to muddle my way along but sometimes I need advice, so here I am.
I have two DC-DC power supplies one 3.3v 100mA and the other 3.8v 3A all from a car / truck supply (+12 - +24v) whilst my design appears to work sometimes the MCU locks and I think this is due to the load dump / spike problem.
Can anyone take a look at my attached schematics and advise on adding a protection doide to help things or anything else nice and simple.
Thx all
P.S. Please don't just say "zener diode" can you give me a SMT part number as I get a little more than confused when I type "zener diode" in google or even RS.