BU522B Motorola Inc, BU522B Datasheet - Page 3

• Manufacturer Part Number: BU522B
• Description: 7 AMPERES DARLINGTON POWER TRANSISTORS NPN SILICON 450 VOLTS 75 WATTS
• Manufacturer: Motorola Inc

Motorola Bipolar Power Transistor Device Data
t 1 to be selected that I C reaches 3 Adc before switch–off
Case temperature of the power transistor T C = 25 C
INPUT
INPUT
70 ms
70 ms
t 1
t 2
670 A
670 A
Test conditions of the Collector–Base Clamping Circuit:
BC337
BC337
47 A
47 A
1N4148
1N4148
V Z
270
270
T.U.T.
T.U.T.
INDUCTIVE
INDUCTIVE
LOAD
LOAD
I C = 3 A
I C = 3 A
Figure 2. Sustaining Voltage Test V CER(sus)
0.6 A
~ 0.6 A
3 mH
300 H
CURRENT
PROBE (I C )
VOLTAGE PROBE
(V CER(sus) )
CURRENT PROBE (I C )
Figure 3. S.O.A. Test
V BAT = +16 V
0 V
1.1 A
0.10 F
300 V
0 V
V BAT = +16 V
VOLTAGE PROBE
(V CER(sus) )
6
5
4
3
2
1
0
0
Clamping device characteristics:
V Z = 400 V
Clamping duration is around 40 sec
t 2 to be selected that I L reaches
5 Adc before switch–off
Case temperature of the power
transistor: T C = 25 C.
V CER(sus) , COLLECTOR–EMITTER VOLTAGE (VOLTS)
100
1% at I Z = 20 mA
200
BU522B
300
400
BU522B
3
500