eem2am
Banned
hello,
Boost converter
12V in,
28V out,
Power out = 10W
freq = 500KHz,
Mosfet NOT heatsinked
No room for heatsink...on either mosfet or boost diode.
TOTAL PCB area = 65mm by 15mm each side (for whole circuit)
. (its a double sided PCB)
The area of copper available for being the heatsink for the mosfet is just 5mm by 5mm!.....the same for the boost diode!.
I have done calculations and have found that this is ABSOLUTELY NOWHERE near enough copper area for cooling.
Please does any reader have any "got out of jail" storys with overheating a mosfet and getting away with it?
Boost converter
12V in,
28V out,
Power out = 10W
freq = 500KHz,
Mosfet NOT heatsinked
No room for heatsink...on either mosfet or boost diode.
TOTAL PCB area = 65mm by 15mm each side (for whole circuit)
. (its a double sided PCB)
The area of copper available for being the heatsink for the mosfet is just 5mm by 5mm!.....the same for the boost diode!.
I have done calculations and have found that this is ABSOLUTELY NOWHERE near enough copper area for cooling.
Please does any reader have any "got out of jail" storys with overheating a mosfet and getting away with it?