Rainbow Electronics IRLTS2242TRPBF - Manual (Page 6)

IRLTS2242PbF
6 www.irf.com
Fig 17a. Gate Charge Test Circuit Fig 17b. Gate Charge Waveform
Fig 18b. Unclamped Inductive Waveforms
Fig 18a. Unclamped Inductive Test Circuit
Fig 19b. Switching Time Waveforms
Fig 19a. Switching Time Test Circuit
Vds
Vgs
Id
Vgs(th)
Qgs1 Qgs2 Qgd Qgodr
1K
VCC
DUT
0
L
S 20K S
R G
IAS
0.01 tp
D.U.T
L
VDS
VDD
DRIVER
A
15V
-20V -V
GS
V
DS
-V
GS
Pulse Width µs
Duty Factor 
R
D
V
GS
V
DD
R
G
D.U.T.
+
-
tp
V (BR)DSS
I
AS
V
DS
90%
10%
V
GS
t d(on) t r t d(off) t f