www.vishay.com Document Number: 91052
4 S11-1048-Rev. C, 30-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
IRF740AS, SiHF740AS, IRF740AL, SiHF740AL
Vishay Siliconix
Fig. 5 - Typical Capacitance vs. Drain-to-Source Voltage
Fig. 6 - Typical Gate Charge vs. Gate-to-Source Voltage
Fig. 7 - Typical Source-Drain Diode Forward Voltage
Fig. 8 - Maximum Safe Operating Area
1
10
10 10
2
C, Capacitance (pF)
V
DS
,
Drain-to-Source Voltage (V)
C
iss
C
rss
C
oss
V
GS
= 0 V, f = 1 MHz
C
iss
= C
gs
+ C
gd
, C
ds
Shorted
C
rss
= C
gd
C
oss
= C
ds
+ C
gd
91052_05
10
5
10
2
10
3
10
4
1
10
3
Q
G
, Total Gate Charge (nC)
V
GS
, Gate-to-Source Voltage (V)
20
16
12
8
0
4
04020 3010
V
DS
= 80 V
V
DS
= 200 V
For test circuit
see figure 13
V
DS
= 320 V
91052_06
I
D
= 10 A
10 µs
100 µs
1 ms
10 ms
Operation in this area limited
by R
DS(on)
V
DS
, Drain-to-Source Voltage (V)
I
D
, Drain Current (A)
T
C
= 25 °C
T
J
= 150 °C
Single Pulse
10
2
1
10
10
10
2
10
3
91052_08
Document Number: 91052 www.vishay.com
S11-1048-Rev. C, 30-May-11 5
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
IRF740AS, SiHF740AS, IRF740AL, SiHF740AL
Vishay Siliconix
Fig. 9 - Maximum Drain Current vs. Case Temperature
Fig. 10a - Switching Time Test Circuit
Fig. 10b - Switching Time Waveforms
Fig. 11 - Maximum Effective Transient Thermal Impedance, Junction-to-Case
Fig. 12a - Unclamped Inductive Test Circuit Fig. 12b - Unclamped Inductive Waveforms
I
D
, Drain Current (A)
T
C
, Case Temperature (°C)
0.0
2.0
4.0
6.0
8.0
10.0
25 1501251007550
91052_09
Pulse width 1 µs
Duty factor 0.1 %
R
D
V
GS
R
g
D.U.T.
10 V
+
-
V
DS
V
DD
V
DS
90 %
10 %
V
GS
t
d(on)
t
r
t
d(off)
t
f
10
1
0.1
10
-2
10
-5
10
-4
10
-3
10
-2
0.1 1 10
P
DM
t
1
t
2
t
1
, Rectangular Pulse Duration (s)
Thermal Response (Z
thJC
)
Notes:
1. Duty Factor, D = t
1
/t
2
2. Peak T
j
= P
DM
x Z
thJC
+ T
C
Single Pulse
(Thermal Response)
D = 0.50
0.20
0.05
0.02
0.01
91052_11
0.10
10
-3
A
R
g
I
AS
0.01 Ω
t
p
D.U.T
L
V
DS
+
-
V
DD
Driver
15 V
20 V
I
AS
V
DS
t
p
www.vishay.com Document Number: 91052
6 S11-1048-Rev. C, 30-May-11
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
IRF740AS, SiHF740AS, IRF740AL, SiHF740AL
Vishay Siliconix
Fig. 12c - Maximum Avalanche Energy vs. Drain Current
Fig. 13a - Basic Gate Charge Waveform
Fig. 12d - Typlical Drain-to-Source Voltage
vs. Avalanche Current
Fig. 13b - Gate Charge Test Circuit
1400
0
400
600
800
1000
1200
25 150
125
10075
50
Starting T
J
, Junction Temperature (°C)
E
AS
, Single Pulse Avalanche Energy (mJ)
Bottom
To p
I
D
4.5 A
6.3 A
10 A
91052_12c
200
Q
GS
Q
GD
Q
G
V
G
Charge
V
GS
560
480
520
540
1.0 6.0
5.0
4.03.0
2.0
I
AV
, Avalanche Current (A)
V
DSav
, Avalanche Voltage (V)
580
9.0
8.0
7.0
91052_12d
500
10.0
D.U.T.
3 mA
V
GS
V
DS
I
G
I
D
0.3 µF
0.2 µF
50 kΩ
12 V
Current regulator
Current sampling resistors
Same type as D.U.T.
+
-

IRF740AS

Mfr. #:
Manufacturer:
Vishay / Siliconix
Description:
MOSFET RECOMMENDED ALT 844-IRF740ASPBF
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union