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| BU941_08 Datasheet, PDF (4/12 Pages) STMicroelectronics – High voltage ignition coil driver NPN power Darlington transistors | |||
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Electrical characteristics
2
Electrical characteristics
BU941, BU941P
(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 = 10 mA
Vclamp = 400 V
see Figure 12
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 = 8 A
IC = 10 A
IC = 12 A
IB = 100 mA
IB = 250 mA
IB = 300 mA
IC = 8 A
IC = 10 A
IC = 12 A
IB = 100 mA
IB = 250 mA
IB = 300 mA
IC = 5 A
VCE = 10 V 300
IF = 10 A
VCC = 24 V
Vclamp = 400 V
see Figure 9
L = 7 mH
10
1.6 V
1.8 V
2
V
2.2 V
2.5 V
2.7 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¦
VCC = 12 V see Figure 11
0.5
µs
1. Pulsed duration = 300 µs, duty cycle â¤1.5%
4/12
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