i am looking for a heatsink. I am new to this henc i am not sure on how to calculate.
Input supply ( from solar cells) : 15.6v, 1.33A ( max)
ouput of the regulator is 12.85V.
Power dissipation: ( 15.6-12.85)* load current ( approx 1.3) = 3.575w
Everytime i run the lm350 it gets very hot. I had tested on the dc supply , the regulator switch to its thermal protection by limiting the current.
jc- junction to case, cs- case to heatsink, sa- heatsink to ambient
the junction temperature must not exceed 125 degrees.
can i neglect Rcs?
T(junction)- T(ambient) = Power loss ( Rjc + Rcs + Rsa)
125- ( how do i determine?) = 3.575( 3+ Rsa)
Rsa is to determine he minimum thermal resistance of the heatsink?.
Input supply ( from solar cells) : 15.6v, 1.33A ( max)
ouput of the regulator is 12.85V.
Power dissipation: ( 15.6-12.85)* load current ( approx 1.3) = 3.575w
Everytime i run the lm350 it gets very hot. I had tested on the dc supply , the regulator switch to its thermal protection by limiting the current.
jc- junction to case, cs- case to heatsink, sa- heatsink to ambient
the junction temperature must not exceed 125 degrees.
can i neglect Rcs?
T(junction)- T(ambient) = Power loss ( Rjc + Rcs + Rsa)
125- ( how do i determine?) = 3.575( 3+ Rsa)
Rsa is to determine he minimum thermal resistance of the heatsink?.