BUZ21
Typical Performance Curves Unless Otherwise Specified (Continued)
102
PULSE DURATION = 80µs
15
ID = 21A
101
TJ = 150oC
10
100
TJ = 25oC
5
VDS = 20V
VDS = 80V
10-10
0.5
1.0
1.5
2.0
2.5
3.0
VSD, SOURCE TO DRAIN VOLTAGE (V)
FIGURE 12. SOURCE TO DRAIN DIODE VOLTAGE
Test Circuits and Waveforms
VARY tP TO OBTAIN
REQUIRED PEAK IAS
RG
VGS
tP
0V
VDS
L
DUT
+
VDD
-
IAS
0.01Ω
FIGURE 14. UNCLAMPED ENERGY TEST CIRCUIT
RL
+
RG
VDD
-
DUT
VGS
FIGURE 16. SWITCHING TIME TEST CIRCUIT
0
0
10
20
30
40
50
Qg(TOT), TOTAL GATE CHARGE (nC)
FIGURE 13. GATE TO SOURCE VOLTAGE vs GATE CHARGE
tP
IAS
BVDSS
VDS
VDD
0
tAV
FIGURE 15. UNCLAMPED ENERGY WAVEFORMS
VDS
tON
td(ON)
tr
90%
tOFF
td(OFF)
tf
90%
10%
0
VGS
10%
0
50%
PULSE WIDTH
10%
90%
50%
FIGURE 17. RESISTIVE SWITCHING WAVEFORMS
5