BU491 Datasheet, PDF (2/2 Pages) New Jersey Semi-Conductor Products, Inc. – HIGH VOLTAGE IGNITION COIL DRIVER NPN POWER DARLINGTON

BU941 / BU941P/ BUB941PFI
THERMAL DATA
Rthj-case ^{Thermal Resistance Junction-case Max}
TO-3
0.97
TO-218
0.97
ISOWATT218
2.3
°C/W
ELECTRICAL CHARACTERISTICS (Tcase = 25 °C unless otherwise specified)
Symbol
Parameter
Test Conditions
ICES Collector Cut-off
Current (VBE = 0)
VCE = 500 V
VcE = 500V
Tj = 125°C
ICEO ^{Collector Cut-off}
Current (IB = 0)
VCE = 450 V
VCE = 450 V
TJ = 1 25 °C
IEBO ^{Emitter Cut-off Current VEB = 5 V}
(lc = 0)
VcEO(sus)* ^{Collector-Emitter}
Sustaining Voltage
(IB = 0)
Ic = 100 mA
Vciamp = 400 V
(See FIG.4)
L = 10 mH
VcE(sat)* ^{Collector-Emitter}
Saturation Voltage
IC = 8 A
Ic = 10 A
lc = 12 A
IB= 100mA
IB = 250 mA
IB = 300 mA
VBE(sat)* ^Base-Emitter
Saturation Voltage
lc = 8 A
lc = 10 A
Ic = 12 A
IB= 100mA
IB = 250 mA
IB = 300 mA
hFE* ^{DC Current Gain}
lc = 5 A
VCE = 1 0 V
VF
Diode Forward Voltage IF = 10A
Functional Test
(see fig. 1)
Vcc = 24 V
L = 7 mH
Vciamp = 400 V
INDUCTIVE LOAD
ts
Storage Time
tf
Fall Time
Vcc = 12V
VBE = 0
L = 7 mH
(see fig. 3)
IB = 70 mA
* Pulsed: Pulse duration = 300 us, duty cycle 1.5 %
Vciamp = 300V
RBE = 47 O
lc = 7 A
Min. Typ.
400
300
10
15
0.5
Max.
100
0.5
100
0.5
20
1.6
1.8
2
2.2
2.5
2.7
2.5
Unit
uA
mA
UA
mA
mA
V
V
V
V
V
V
V
V
A
us
us
Safe Operating Area
IC(A)
DC Current Gain
10'
* l-or single non
repeliliva pulse
10"
10