irlr9343 International Rectifier Corp., irlr9343 Datasheet - Page 6

• Manufacturer Part Number: irlr9343
• Description: -55v Single P-channel Hexfet Power Mosfet In A I-pak Package
• Manufacturer: International Rectifier Corp.

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6
Fig 19a. Gate Charge Test Circuit

‚
+
-
I
AS
R
-20V
G
D.U.T
V DS
GS
1K
t p
I AS
ƒ
Fig 16.
D.U.T
+
-
•
•
•
•
t p
0.01 Ω
L
SD
DUT
•
•
•
DRIVER
L
V
(BR)DSS
-
„
G
HEXFET
15V
+
V DD
VCC
A
®
+
Power MOSFETs
-
Re-Applied
Voltage
Reverse
Recovery
Current
Driver Gate Drive
D.U.T. I
D.U.T. V
Inductor Curent
P.W.
SD
DS
V
10%
90%
V
Waveform
GS
DS
Waveform
Fig 19b Gate Charge Waveform
Vgs(th)
Qgs1 Qgs2
Vds
Ripple ≤ 5%
Body Diode
for P-Channel
Period
Body Diode Forward
t
d(on)
Diode Recovery
Current
≤ 0.1 %
≤ 1
Qgd
dv/dt
Forward Drop
t
r
di/dt
D =
Qgodr
Period
P.W.
t
d(off)
V
V
I
SD
GS
DD
+
-
Vgs
=10V
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f
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