MJE13009 Просмотр технического описания (PDF) - ON Semiconductor
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MJE13009 Datasheet PDF : 10 Pages
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MJE13009
Table 3. Typical Inductive Switching Performance
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ IC
TC
tsv
trv
tfi
tti
tc
AMP
_C
ns
ns
ns
ns
ns
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 3
25
770
100
150
200
240
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 100
1000
230
160
200
320
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 5
25
630
72
26
10
100
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 100
820
100
55
30
180
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 8
25
720
55
27
100
920
70
50
2
77
8
120
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 12
25
640
20
17
2
41
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ 100
800
32
24
4
54
NOTE: All Data recorded In the Inductive Switching Circuit In Table 1.
SWITCHING TIME NOTES
In resistive switching circuits, rise, fall, and storage times
have been defined and apply to both current and voltage
waveforms since they are in phase. However, for inductive
loads which are common to SWITCHMODE power
supplies and hammer drivers, current and voltage
waveforms are not in phase. Therefore, separate
measurements must be made on each waveform to
determine the total switching time. For this reason, the
following new terms have been defined.
tsv = Voltage Storage Time, 90% IB1 to 10% VCEM
trv = Voltage Rise Time, 10−90% VCEM
tfi = Current Fall Time, 90−10% ICM
tti = Current Tail, 10−2% ICM
tc = Crossover Time, 10% VCEM to 10% ICM
An enlarged portion of the turn−off waveforms is shown
in Figure 13 to aid in the visual identity of these terms.
For the designer, there is minimal switching loss during
storage time and the predominant switching power losses
occur during the crossover interval and can be obtained
using the standard equation from AN222/D:
PSWT = 1/2 VCCIC(tc) f
Typical inductive switching waveforms are shown in
Figure 14. In general, trv + tfi ] tc. However, at lower test
currents this relationship may not be valid.
As is common with most switching transistors, resistive
switching is specified at 25_C and has become a benchmark
for designers. However, for designers of high frequency
converter circuits, the user oriented specifications which
make this a “SWITCHMODE” transistor are the inductive
switching speeds (tc and tsv) which are guaranteed at 100_C.
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