MJ10015 데이터 시트보기 (PDF) - ON Semiconductor
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MJ10015
ON Semiconductor
MJ10015 Datasheet PDF : 8 Pages
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VCEO(sus)
20 Ω
1
5V
0
2
PW Varied to Attain
IC = 100 mA
MJ10015 MJ10016
Table 1. Test Conditions for Dynamic Performance
VCEX AND INDUCTIVE SWITCHING
INDUCTIVE TEST CIRCUIT
TUT
1
INPUT
SEE ABOVE FOR
DETAILED CONDITIONS
2
1N4937
OR
EQUIVALENT
Vclamp
RS =
0.1 Ω
Rcoil
Lcoil
VCC
Lcoil = 10 mH, VCC = 10 V
Rcoil = 0.7 Ω
Vclamp = VCEO(sus)
INDUCTIVE TEST CIRCUIT
TUT
1
INPUT
SEE ABOVE FOR
DETAILED CONDITIONS
2
1N4937
OR
EQUIVALENT
Vclamp
RS =
0.1 Ω
Rcoil
Lcoil
VCC
Lcoil = 180 µH
Rcoil = 0.05 Ω
VCC = 20 V
OUTPUT WAVEFORMS
IC(pk)
t1
tf
tf Clamped
t
VCE or
Vclamp
t
TIME
t2
t1 Adjusted to
Obtain IC
Lcoil (ICpk)
t1 ≈
VCC
Lcoil (ICpk)
t2 ≈ VClamp
Test Equipment
Scope — Tektronix
475 or Equivalent
RESISTIVE SWITCHING
TURN–ON TIME
1
2
IB1
IB1 adjusted to
obtain the forced
hFE desired
TURN–OFF TIME
Use inductive switching
driver as the input to
the resistive test circuit.
VCC = 250 V
RL = 12.5 Ω
Pulse Width = 25 µs
RESISTIVE TEST CIRCUIT
TUT
1
RL
2
VCC
*Adjust –V such that VBE(off) = 5 V except as required for RBSOA (Figure 8).
IC pk
Vclamp
90% Vclamp 90% IC
IC
tsv
trv
tfi
tti
VCE
IB
90% IB1
tc
10% Vclamp
10%
IC pk 2% IC
TIME
Figure 6. 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, 10ā–ā90% Vclamp
tfi = Current Fall Time, 90ā–ā10% IC
tti = Current Tail, 10ā–ā2% IC
tc = Crossover Time, 10% Vclamp to 10% IC
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 = 1/2 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 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.
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