Owner's manual

DMP4025LSD
Document Number: DS35936 Rev: 1 - 2
3 of 8
www.diodes.com
June 2012
© Diodes Incorporated
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Diodes Incorporated
DMP4025LSS
ADVANCE INFORMATION
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
ANSIEN
T
P
O
IWE
R
(W)
(PK)
Single Pulse
R = 82C/W
R = r * R
T - T = P * R
θ
θθ
θ
JA
JA(t) (t) JA
JA 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
θθ
θ
JA JA
JA
0.001
0.01
0.1
r(t),
T
R
ANSIEN
T
T
H
E
R
MAL
R
ESIS
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