Datasheet


    
SLIS061C − JULY 1998 − REVISED APRIL 2005
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
THERMAL INFORMATION
R
θJA
− Normalized Junction-to-Ambient Thermal Resistance − °C/W
D PACKAGE
†
NORMALIZED JUNCTION-TO-AMBIENT THERMAL RESISTANCE
vs
PULSE DURATION
DC Conditions
d = 0.5
d = 0.2
d = 0.1
d = 0.02
d = 0.05
d = 0.01
t
w
− Pulse Duration − s
t
w
t
c
I
D
0
Single Pulse
†
Device mounted on FR4 printed-circuit board with no heat sink
NOTES: Z
θA
(t) = r(t) R
θJA
t
w
= pulse duration
t
c
= cycle time
d = duty cycle = t
w
/t
c
0.0001
0.0001
0.001
0.01
0.1
1
10
0.001 0.01 0.1 1 10
Figure 12