IRLMS1503PbF-1
RD
VDS
Q
G
10V
VGS
D.U.T.
Q
Q
GD
GS
RG
+ VDD
-
V
G
10V
Pulse Width ≤ 1 µs
Duty Factor ≤ 0.1 %
Charge
Fig 9a. Basic Gate Charge Waveform
Fig 10a. Switching Time Test Circuit
Current Regulator
Same Type as D.U.T.
V
DS
50KΩ
90%
.2μF
12V
.3μF
+
V
DS
D.U.T.
-
10%
V
GS
V
GS
t
t
r
t
t
f
3mA
d(on)
d(off)
I
I
D
G
Current Sampling Resistors
Fig 9b. Gate Charge Test Circuit
Fig 10b. Switching Time Waveforms
100
D = 0.50
0.20
0.10
0.05
10
0.02
0.01
P
2
DM
1
t
1
SINGLE PULSE
(THERMAL RESPONSE)
t
2
Notes:
1. Duty factor D =
t / t
1
2. Peak T =P
J
x Z
+ T
thJA A
DM
0.1
0.00001
0.0001
0.001
0.01
0.1
1
10
100
t , Rectangular Pulse Duration (sec)
1
Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Ambient
5
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June 30, 2014
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