Diodes SBR1045CTLQ - Manual (Page 4)

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SBR1045CTLQ
Document number: DS36094 Rev. 1 - 2
4 of 6
www.diodes.com
October 2012
© Diodes Incorporated
SBR1045CTLQ
NEW PROD
UC
T
100
200
300
400
500
600
700
800
900
0.00001 0.0001 0.001 0.01 0.1 1
P
, P
E
AK
T
R
A
N
SI
E
N
T
P
O
IW
E
R
(W
)
(P
K
)
1,000
0
t1, PULSE DURATION TIME (sec)
Figure 9 Single Pulse Maximum Power Dissipation
Single Pulse
R
= 59 C/W
R = r * R
T - T = P * R
θ
θ
θ
θ
JA
JA(t)
(t) JA
J A JA(t)
°
0.001 0.01 0.1 1 10 100 1,000 10,000
t1, PULSE DURATION TIMES (sec)
Figure 10 Transient Thermal Resistance
R (t) = r(t) * R
R = 59°C/W
Duty Cycle, D = t1/ t2
θ θ
θ
JA JA
JA
0.001
r(
t),
T
R
ANSI
EN
T
T
H
E
R
MA
L
R
ES
IS
TAN
C
E
0.01
0.1
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