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Document Number: 74283
S11-0209-Rev. C, 14-Feb-11
Vishay Siliconix
Si4472DY
TYPICAL CHARACTERISTICS (25 °C, unless otherwise noted)
Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon
Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and
reliability data, see www.vishay.com/ppg?74283
.
Normalized Thermal Transient Impedance, Junction-to-Ambient
10
-3
10
-2
10
-1
100
Square Wave Pulse Duration (s)
10
1000
1
0.1
0.01
tneisnarT evitceffE dezilamroN
ecnadepmI lamrehT
1
10
-4
1. Duty Cycle, D =
2. Per Unit Base = R
thJA
= 65 °C/W
3. T
JM
- T
A
= P
DM
Z
thJA
(t)
t
1
t
2
4. Surface Mounted
Notes:
t
1
P
DM
t
2
0.2
0.1
0.05
0.02
Single Pulse
Duty Cycle = 0.5
Normalized Thermal Transient Impedance, Junction-to-Foot
10
-3
10
1
0.1
0.01
Square Wave Pulse Duration (s)
tneisnar
T
ev
i
t
cef
fE
d
e
zi
l
am
r
oN
ecnadepmI
l
amrehT
-4
10
0.2
0.05
Single Pulse
Duty Cycle = 0.5
0.02
10
-2
10
-1
1