MJ10023 ON Semiconductor, MJ10023 Datasheet - Page 5

• Manufacturer Part Number: MJ10023
• Manufacturer: ON Semiconductor

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.
t sv = Voltage Storage Time, 90% I B1 to 10% V CEM
t rv = Voltage Rise Time, 10 – 90% V CEM
t fi = Current Fall Time, 90 – 10% I CM
t ti = Current Tail, 10 – 2% I CM
t c = Crossover Time, 10% V CEM to 10% I CM
Motorola Bipolar Power Transistor Device Data
In resistive switching circuits, rise, fall, and storage times
An enlarged portion of the inductive switching waveform is
0.05
0.02
2.0
1.0
0.5
0.2
0.1
0.05
0.01
0.4
1.0
0.5
0.2
0.1
0.1
Figure 10. Typical Turn–On Switching Times
V CC = 250 V
I C /I B1 = 20
T J = 25 C
1.0
D = 0.5
I C , COLLECTOR CURRENT (AMPS)
0.2
0.1
2.0
t r
SINGLE PULSE
1.0
5.0
10
SWITCHING TIMES NOTE
RESISTIVE SWITCHING
20
t d
Figure 12. Thermal Response
10
40
t, TIME (ms)
shown in Figure 7 to aid on the visual identity of these terms.
storage time and the predominant switching power losses
occur during the crossover interval and can be obtained us-
ing the standard equation from AN–222A:
In general, t rv + t fi
relationship may not be valid.
switching is specified at 25 _ C and has become a benchmark
for designers. However, for designers of high frequency con-
verter circuits, the user orinented specifications which make
this a “SWITCHMODE” transistor are the inductive switching
speeds (t c and t sv ) which are guaranteed at 100 _ C.
R θJC (t) = r(t) R θJC
R θJC = 0.7 C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t 1
T J(pk) – T C = P (pk) R θJC (t)
For the designer, there is minimal switching loss during
As is common with most switching transistors, resistive
0.05
0.02
2.0
1.0
0.5
0.2
0.1
0.4
Figure 11. Typical Turn–Off Switching Times
100
V CC = 250 V
I C /I B1 = 20
V BE(off) = 5 V
1.0
P SWT = 1/2 V CC I C (t c )f
I C , COLLECTOR CURRENT (AMPS)
`
t c . However, at lower test currents this
2.0
P (pk)
DUTY CYCLE, D = t 1/t2
1000
5.0
t 1
t 2
10
t s
MJ10023
20
t f
10000
5
40