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| BU931_1 Datasheet, PDF (4/13 Pages) STMicroelectronics – High voltage ignition coil driver NPN power Darlington transistors | |||
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Electrical characteristics
2
Electrical characteristics
BU931, BU931P, BU931T
Tcase = 25 °C; unless otherwise specified.
Table 4. Electrical characteristics
Symbol
Parameter
Test conditions
Min. Typ. Max. Unit
ICES
Collector cut-off current
(VBE = 0)
VCE = 500 V
VCE = 500 V TC = 125 °C
ICEO
Collector cut-off current
(IB = 0)
VCE = 450 V
VCE = 450 V TC = 125 °C
IEBO
Emitter cut-off current
(IC = 0)
VEB = 5 V
VCEO(sus)(1)
Collector-emitter
sustaining voltage (IB = 0)
IC = 100 mA
Vclamp = 400 V
see Figure 14
L = 10 mH
400
100 µA
0.5 mA
100 µA
0.5 mA
20 mA
V
VCE(sat) (1)
Collector-emitter
saturation voltage
VBE(sat) (1)
Base-emitter saturation
voltage
hFE (1)
VF
DC current gain
Diode forward voltage
Functional test
IC = 7 A
IC = 8 A
IC = 10 A
IB = 70 mA
IB = 100 mA
IB = 250 mA
IC = 7 A
IC = 8 A
IC = 10 A
IB = 70 mA
IB = 100 mA
IB = 250 mA
IC = 5 A
VCE = 10 V 300
IF = 10 A
VCC = 24 V L = 7 mH
Vclamp = 400 V
8
see Figure 11
1.6 V
1.8 V
1.8 V
2.2 V
2.4 V
2.5 V
2.5 V
A
Inductive Load
ts
Storage time
tf
Fall time
IC = 7 A Vclamp = 300 V
IB = 70 mA L = 7 mH
15
µs
VBE = 0
RBE = 47 â¦
0.5
µs
VCC = 12 V see Figure 13
1. Pulse test: pulse duration ⤠300 µs, duty cycle ⤠2 %
4/13
Doc ID 1004 Rev 4
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