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BU941

P1-P3P4-P6P7-P8
BU941/BU941P
BU941PFI
HIGH VOLTAGE IGNITION COIL DRIVER
NPN POWER DARLINGTON
■ NPN DARLINGTON
■ INTEGRATED ANTIPARALLEL
COLLECTOR-EMITTER DIODE
■ VERY RUGGED BIPOLAR TECHNOLOGY
■ HIGH OPERATING JUNCTION
TEMPERATURE
■ WIDE RANGE OF PACKAGES
APPLICATIONS
■ HIGH RUGGEDNESS ELECTRONIC
IGNITIONS
INTERNAL SCHEMATIC DIAGRAM
December 1999
for TO-3
Emitter: pin 2
Base: pin1
Collector: tab
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
BU941 BU941P BUB941PFI
V
CES
Collector-Emitter Voltage (V
BE
= 0) 500 V
V
CEO
Collector-Emitter Voltage (I
B
= 0) 400 V
V
EBO
Emitter-Base Voltage (I
C
= 0) 5 V
I
C
Collector Current 15 A
I
CM
Collector Peak Current 30 A
I
B
Base Current 1 A
I
BM
Base Peak Current 5 A
P
tot
Total Dissipation at T
c
= 25
o
C 180 155 65 W
T
stg
Storage Temperature -65 to 200 -65 to 175 -65 to 175
o
C
T
j
Max. Operating Junction Temperature 200 175 175
o
C
1
2
3
TO-218 ISOWATT218
1
2
3
1
2
TO-3
®
1/8
THERMAL DATA
TO-3 TO-218 ISOWATT218
R
thj-case
Thermal Resistance Junction-case Max 0.97 0.97 2.3
o
C/W
ELECTRICAL CHARACTERISTICS (T
case
= 25
o
C unless otherwise specified)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
I
CES
Collector Cut-off
Current (V
BE
= 0)
V
CE
= 500 V
V
CE
= 500 V T
j
= 125
o
C
100
0.5
µA
mA
I
CEO
Collector Cut-off
Current (I
B
= 0)
V
CE
= 450 V
V
CE
= 450 V T
j
= 125
o
C
100
0.5
µA
mA
I
EBO
Emitter Cut-off Current
(I
C
= 0)
V
EB
= 5 V 20 mA
V
CEO(sus)
∗ Collector-Emitter
Sustaining Voltage
(I
B
= 0)
I
C
= 100 mA L = 10 mH
V
Clamp
= 400 V
(See FIG.4)
400 V
V
CE(sat)
∗ Collector-Emitter
Saturation Voltage
I
C
= 8 A I
B
= 100 mA
I
C
= 10 A I
B
= 250 mA
I
C
= 12 A I
B
= 300 mA
1.6
1.8
2
V
V
V
V
BE(sat)
∗ Base-Emitter
Saturation Voltage
I
C
= 8 A I
B
= 100 mA
I
C
= 10 A I
B
= 250 mA
I
C
= 12 A I
B
= 300 mA
2.2
2.5
2.7
V
V
V
h
FE
∗ DC Current Gain I
C
= 5 A V
CE
= 10 V 300
V
F
Diode Forward Voltage I
F
= 10 A 2.5 V
Functional Test
(see fig. 1)
V
CC
= 24 V V
Clamp
= 400 V
L = 7 mH
10 A
t
s
t
f
INDUCTIVE LOAD
Storage Time
Fall Time
(see fig. 3)
V
CC
= 12 V V
Clamp
= 300 V
V
BE
= 0 R
BE
= 47 Ω
L = 7 mH I
C
= 7 A
I
B
= 70 mA
15
0.5
µs
µs
∗ Pulsed: Pulse duration = 300 µs, duty cycle 1.5 %
Safe Operating Area DC Current Gain
BU941 / BU941P / BUB941PFI
2/8
DC Current Gain
Collector-emitter Saturation Voltage
Switching Time Inductive Load (see fig.3)
Collector-emitter Saturation Voltage
Base-emitter Saturation Voltage
BU941 / BU941P / BUB941PFI
3/8
P1-P3P4-P6P7-P8

BU941

Mfr. #:
Buy BU941
Manufacturer:
STMicroelectronics
Description:
Darlington Transistors NPN Power Darlington
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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