Diodes DMP2540UCB9 - Manual (Page 5)

DMP2540UCB9
Document number: DS35611 Rev. 4 - 2
5 of 6
www.diodes.com
June 2012
© Diodes Incorporated
DMP2540UCB9
NEW PROD
UC
T
ADVAN
CE I
N
F
O
RM
ATI
O
N
0.00001 0.0001 0.001 0.01 0.1 1 10 100 1,000
t1, PULSE DURATION TIMES (sec)
Fig. 13 Transient Thermal Resistance
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
R (t) = r(t) * R θ θ JA JA
R = 70°C/W
Duty Cycle, D = t1/ t2
θJA
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
Package Outline Dimensions
Suggested Pad Layout
U-WLB1515-9
Dim Min Max Typ
A - 0.62 -
A2 - 0.36 0.36
A3 0.020 0.030 0.025
b 0.27 0.37 0.32
D 1.47 1.51 1.49
E 1.47 1.51 1.49
e - - 0.50
All Dimensions in mm
Dimensions
Value
(in mm)
C 0.50
C1 1.00
C2 1.00
D 0.25
D
E
PIN ID
e
e
6X-Ø b
e
A2
A
SEATING PLANE
A3
e
C
C1
C
D
C2