BU931T
HIGH VOLTAGE IGNITION COIL DRIVER
NPN POWER DARLINGTON TRANSISTOR
s
VERY RUGGED BIPOLAR TECHNOLOGY
s
HIGH OPERATING JUNCTION
TEMPERATURE
APPLICATIONS
s
HIGH RUGGEDNESS ELECTRONIC
IGNITIONS
October 2003
1
2
3
TO-220
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V
CES
Collector-Emitter Voltage (V
BE
= 0)
500
V
V
CEO
Emitter-Base Voltage (I
B
= 0)
400
V
V
EBO
Emitter-Base Voltage (I
C
= 0)
5
V
I
C
Collector Current
10
A
I
CM
Collector Peak Current
15
A
I
B
Base Current
1
A
I
BM
Base Peak Current
5
A
P
tot
Total Dissipation at T
c
= 25
o
C
125
W
T
stg
Storage Temperature
-65 to 175
o
C
T
j
Max. Operating Junction Temperature
175
o
C
INTERNAL SCHEMATIC DIAGRAM
1/6
THERMAL DATA
R
thj-case
Thermal Resistance Junction-case Max
1.2
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
C
= 125
o
C
100
0.5
A
mA
I
CEO
Collector Cut-off
Current (I
B
= 0)
V
CE
= 450 V
V
CE
= 450 V T
C
= 125
o
C
100
0.5
A
mA
I
EBO
Emitter Cut-off Current
(I
C
= 0)
V
EB
= 5 V
20
mA
V
CEO(SUS)
Collector-Emitter
Saturation Voltage
(I
B
= 0)
I
C
= 100 mA L = 10 mH I
B
= 0
V
CLAMP
= 400 V (see fig.4)
400
V
V
CE(sat)
Collector-Emitter
Saturation Voltage
I
C
= 7 A I
B
= 70 mA
I
C
= 8 A I
B
= 100 mA
1.6
1.8
V
V
V
BE(sat)
Base-Emitter
Saturation Voltage
I
C
= 7 A I
B
= 70 mA
I
C
= 8 A I
B
= 100 mA
2.2
2.4
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
V
CC
= 24 V V
cla mp
= 400 V L= 7 mH
(see fig. 1)
8
A
t
s
t
f
INDUCTIVE LOAD
Storage Time
Fall Time
V
CC
= 12 V V
cla mp
= 300 V L= 7 mH
I
C
= 7 A I
B
= 70 mA
V
BE
= 0 R
BE
= 47
(see fig. 3)
15
0.5
s
s
Pulsed: Pulse duration = 300
s, duty cycle 1.5 %
Safe Operating Area
DC Current Gain
BU931T
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Base Emitter Saturation Voltage
Switching Time Inductive Load
Collector Emitter Saturation Voltage
Base Emitter Saturation Voltage
Collector Emitter Saturation Voltage
Collector Emitter Saturation Voltage
BU931T
3/6
FIGURE 1: Functional Test Circuit
FIGURE 2: Functional Test Waveforms
FIGURE 3: Switching Time Test Circuit
FIGURE 4: Sustaining Voltage Test Circuit
BU931T
4/6
DIM.
mm
inch
MIN.
TYP.
MAX.
MIN.
TYP.
MAX.
A
4.40
4.60
0.173
0.181
C
1.23
1.32
0.048
0.052
D
2.40
2.72
0.094
0.107
E
0.49
0.70
0.019
0.027
F
0.61
0.88
0.024
0.034
F1
1.14
1.70
0.044
0.067
F2
1.14
1.70
0.044
0.067
G
4.95
5.15
0.194
0.202
G1
2.40
2.70
0.094
0.106
H2
10.00
10.40
0.394
0.409
L2
16.40
0.645
L4
13.00
14.00
0.511
0.551
L5
2.65
2.95
0.104
0.116
L6
15.25
15.75
0.600
0.620
L7
6.20
6.60
0.244
0.260
L9
3.50
3.93
0.137
0.154
M
2.60
0.102
DIA.
3.75
3.85
0.147
0.151
P011CI
TO-220 MECHANICAL DATA
BU931T
5/6
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