Diodes DMP4025LSS - Manual (Page 3)

DMP4025LSD
Document Number: DS35936 Rev: 1 - 2
3 of 8
www.diodes.com
June 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
DMP4025LSS
ADVAN
CE I
N
F
O
RM
ATI
O
N Thermal Characteristics
t1, PULSE DURATION TIME (sec)
Fig. 1 Single Pulse Maximum Power Dissipation
0.001 0.01 0.1 1 10 100 1,000
0
10
20
30
40
50
60
70
80
90
100
P
,
P
EAK
T
R
ANSI
EN
T
P
O
IWE
R
(W
)
(PK)
Single Pulse
R
= 82 C/W
R = r * R
T - T = P * R
θ
θ
θ
θ
JA
JA(t) (t) JA
J A JA(t)
°
0.00001 0.0001 0.001 0.01 0.1 1 10 100 1,000
t1, PULSE DURATION TIMES (sec)
Fig. 2 Transient Thermal Resistance
R (t) = r(t) * R
R = 83°C/W
Duty Cycle, D = t1/ t2
θ θ
θ
JA JA
JA
0.001
0.01
0.1
r(
t),
T
R
A
N
SI
EN
T
T
H
E
R
MA
L
R
ES
IS
T
AN
C
E
1
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