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IRF7811W Datasheet(PDF) 4 Page - International Rectifier

Part No. IRF7811W
Description  Power MOSFET for DC-DC Converters
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Maker  IRF [International Rectifier]
Homepage  http://www.irf.com
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IRF7811W
4
www.irf.com
Figure 7. Maximum Effective Transient Thermal Impedance, Junction-to-Ambient
0.1
1
10
100
0.00001
0.0001
0.001
0.01
0.1
1
10
Notes:
1. Duty factor D =
t / t
2. Peak T = P
x Z
+ T
1
2
J
DM
thJA
A
P
t
t
DM
1
2
t , Rectangular Pulse Duration (sec)
1
0.01
0.02
0.05
0.10
0.20
D = 0.50
SINGLE PULSE
(THERMAL RESPONSE)
Fig 6. Typical Source-Drain Diode
Forward Voltage
0.1
1
10
100
0.4
0.6
0.8
1.0
1.2
V
,Source-to-Drain Voltage (V)
SD
V
= 0 V
GS
T = 25 C
J
°
T = 150 C
J
°
Fig 5. Typical Transfer Characteristics
0.1
1
10
100
2.5
3.0
3.5
4.0
4.5
5.0
V
= 15V
20µs PULSE WIDTH
DS
V
, Gate-to-Source Voltage (V)
GS
T = 25 C
J
°
T = 150 C
J
°




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