Diodes DMP4025SFG - Manual (Page 3)

POWERDI is a registered trademark of Diodes Incorporated.
DMP4025SFG
Document Number: DS36107 Rev: 2 - 2
3 of 8
www.diodes.com
April 2013
© Diodes Incorporated
ADVAN
CE I
N
F
O
RM
ATI
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N
A Product Line of
Diodes Incorporated
DMP4025SFG
Thermal Characteristics
t1, PULSE DURATION TIME (sec)
Figure 1 Single Pulse Maximum Power Dissipation
0.0001 0.01 0.1 1 10 100 1,000 0.001
0
10
20
30
40
50
60
70
80
90
100
P
,
P
EA
K
T
R
A
N
SI
E
N
T
P
O
IW
E
R
(W
)
(P
K
)
Single Pulse
R
= 136 C/W
R = r * R
T - T = P * R




JA
JA(t) (t) JA
J A JA(t)

0.0001 0.001 0.01 0.1 1 10 100 1,000
t1, PULSE DURATION TIMES (sec)
Figure 2 Transient Thermal Resistance
0.001
0.01
0.1
r(t
),
T
R
ANS
IEN
T
T
H
E
R
MA
L
R
ESI
S
TAN
C
E
1
R (t) = r(t) * R
R = 136°C/W
Duty Cycle, D = t1/ t2
 

JA JA
JA
D = 0.7
D = 0.9
D = 0.5
D = 0.3
D = 0.1
D = 0.05
D = 0.02
D = 0.01
D = 0.005
Single Pulse