MJE5740 データシートの表示（PDF） - Motorola => Freescale
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MJE5740 Datasheet PDF : 6 Pages
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MJE5740 MJE5741 MJE5742
Table 1. Test Conditions for Dynamic Performance
REVERSE BIAS SAFE OPERATING AREA AND INDUCTIVE SWITCHING
RESISTIVE
SWITCHING
PW
DUTY CYCLE ≤ 10% 68
tr, tf ≤ 10 ns
+5 V
0.001 µF
1N4933 33
MJE210
33 1N4933
2N2222
1k
RB
1k
IB
+5 V
VCC
L
IC
1N4933
NOTE:
0.02 µF 270
PW and VCC Adjusted for Desired IC
RB Adjusted for Desired IB1
1k
2N2905
47 100
1/2 W
T.U.T.
MJE200
– VBE(off)
MR826*
Vclamp
*SELECTED FOR ≥ 1 kV
5.1 k
VCE
51
COIL DATA:
FERROXCUBE CORE #6656
FULL BOBBIN (~16 TURNS) #16
GAP FOR 200 µH/20 A
Lcoil = 200 µH
OUTPUT WAVEFORMS
IC
IC(pk)
t1
tf CLAMPED
t
tf
VCE
VCE OR
Vclamp
t
TIME
t2
t1 ADJUSTED TO
OBTAIN IC
t1 ≈
Lcoil (ICpk)
VCC
t2 ≈
Lcoil (ICpk)
Vclamp
VCC = 30 V
VCE(pk) = 250 Vdc
IC(pk) = 6 A
TEST EQUIPMENT
SCOPE–TEKTRONICS
475 OR EQUIVALENT
+VCC
RC
TUT
RB
SCOPE
D1
–4 V
VCC = 250 V
D1 = 1N5820 OR EQUIV.
+10 V
25 µs
0
– 9.2 V
tr, tf < 10 ns
DUTY CYCLE = 1%
RB AND RC ADJUSTED
FOR DESIRED IB AND IC
1.8
1.6
hFE = 20
1.4
1.2
1
– 55°C
0.8
+ 25°C
0.6
+150°C
0.4
0.2
0.1
0.2
0.5
1
2
5
10
IC, COLLECTOR CURRENT (AMPS)
Figure 5. Inductive Switching Measurements
Motorola Bipolar Power Transistor Device Data
3
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