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MJ10005 View Datasheet(PDF) - ON Semiconductor

Part Name
Description
Manufacturer
MJ10005 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
MJ10005
VCEO(sus)
1
20
0
2
PW Varied to Attain
IC = 250 mA
Table 1. Test Conditions for Dynamic Performance
VCEX(sus) AND INDUCTIVE SWITCHING
INDUCTIVE TEST CIRCUIT
TUT
1
INPUT
SEE ABOVE FOR
DETAILED CONDITIONS
2
1N4937
OR
EQUIVALENT
Vclamp
RS =
0.1
Rcoil
Lcoil
VCC
Lcoil = 10 mH, VCC = 10 V
Rcoil = 0.7
Vclamp = VCEO(sus)
Lcoil = 180 µH
Rcoil = 0.05
VCC = 20 V
Vclamp = Rated VCEX Value
RESISTIVE SWITCHING
VCC = 250 V
RL = 25
Pulse Width = 50 µs
INDUCTIVE TEST CIRCUIT
OUTPUT WAVEFORMS
TUT
1
INPUT
SEE ABOVE FOR
DETAILED CONDITIONS
2
1N4937
OR
EQUIVALENT
Vclamp
RS =
0.1
Rcoil
Lcoil
VCC
IC
IC(pk)
t1
VCE
VCE or
Vclamp
TIME
tf UNCLAMPED [ t2
tf CLAMPED
t
tf
t
t2
t1 Adjusted to
Obtain IC
Lcoil (ICpk)
t1
VCC
Lcoil (ICpk)
t2 VClamp
Test Equipment
Scope — Tektronix
475 or Equivalent
RESISTIVE TEST CIRCUIT
TUT
1
RL
2
VCC
IC
90% Vclamp
90% IC Vclamp
tsv
trv
tfi
tti
Vclamp
90% IB1
IB
tc
10%
10%
Vclamp
IC
2%
IC
TIME
Figure 7. Inductive Switching Measurements
SWITCHING TIMES NOTE
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% Vclamp
trv = Voltage Rise Time, 10–90% Vclamp
tfi = Current Fall Time, 90–10% IC
tti = Current Tail, 10–2% IC
tc = Crossover Time, 10% Vclamp to 10% IC
An enlarged portion of the turn–off waveforms is shown
in Figure 7 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 AN–222.
PSWT = l/2 VCC IC (tc) f
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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