BU522B Просмотр технического описания (PDF) - Motorola => Freescale
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BU522B Datasheet PDF : 4 Pages
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BU522B
6
VBAT = +16 V
t1
70 ms
47 A
~ 0.6 A
5
INDUCTIVE
LOAD
300 µH
4
VOLTAGE PROBE
(VCER(sus))
IC = 3 A
CURRENT PROBE (IC)
3
1N4148
T.U.T.
670 A
2
INPUT
BC337
270 Ω
0V
1
t1 to be selected that IC reaches 3 Adc before switch–off
Case temperature of the power transistor TC = 25°C
0
BU522B
0
100
200
300
400
500
VCER(sus), COLLECTOR–EMITTER VOLTAGE (VOLTS)
Figure 2. Sustaining Voltage Test VCER(sus)
Test conditions of the Collector–Base Clamping Circuit:
VBAT = +16 V
47 A
0.6 A
INDUCTIVE
LOAD
3 mH
t2
70 ms
INPUT
670 A
1N4148 VZ
BC337
T.U.T.
270 Ω
IC = 3 A
CURRENT
PROBE (IC)
VOLTAGE PROBE
(VCER(sus))
1.1 A
0.10 µF
300 V
0V
Clamping device characteristics:
VZ = 400 V ± 1% at IZ = 20 mA
Clamping duration is around 40 µsec
t2 to be selected that IL reaches
5 Adc before switch–off
Case temperature of the power
transistor: TC = 25°C.
Figure 3. S.O.A. Test
Motorola Bipolar Power Transistor Device Data
3
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