BU931T
BUB931T
HIGH VOLTAGE IGNITION COIL DRIVER
NPN POWER DARLINGTONS
s
VERY RUGGED BIPOLAR TECHNOLOGY
s
HIGH OPERATING JUNCTION
TEMPERATURE
s
WIDE RANGE OF PACKAGES
s
SURFACE-MOUNTING D2PAK (TO-263)
POWER PACKAGE IN TUBE (NO SUFFIX)
OR IN TAPE & REEL (SUFFIX "T4")
APPLICATIONS
s
HIGH RUGGEDNESS ELECTRONIC
IGNITIONS
INTERNAL SCHEMATIC DIAGRAM
January 1999
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Val ue
Uni t
V
CES
Collect or-Emitter Voltage (V
BE
= 0)
500
V
V
CEO
Collect or-Emitter Voltage (I
B
= 0)
400
V
V
EBO
Emitter-Base Voltage (I
C
= 0)
5
V
I
C
Collect or Current
10
A
I
CM
Collect or Peak Current
15
A
I
B
Base Current
1
A
I
BM
Base Peak Current
5
A
P
t ot
Tot al Dissipation at T
c
= 25
o
C
125
W
T
stg
Storage T emperat ure
-65 to 175
o
C
T
j
Max. O perating Junction Temperature
175
o
C
1
3
TO-220
D2PAK
TO-263
1
2
3
1/7
THERMAL DATA
R
t hj-ca se
Thermal Resistance Junction-case
Max
1. 2
o
C/W
ELECTRICAL CHARACTERISTICS (T
case
= 25
o
C unless otherwise specified)
Symb ol
Parameter
Test Cond ition s
Mi n.
Typ .
Max.
Un it
I
CES
Collector Cut -of f
Current (V
BE
= 0)
V
CE
= 500 V
V
CE
= 500 V
T
j
= 125
o
C
100
0.5
A
mA
I
CEO
Collector Cut -of f
Current (I
B
= 0)
V
CE
= 450 V
V
CE
= 450 V
T
j
= 125
o
C
100
0.5
A
mA
I
EBO
Emitt er Cut -of f Current
(I
C
= 0)
V
EB
= 5 V
20
mA
V
CEO( SUS)
Collector-Emit ter
Saturation Voltage
I
C
= 100 mA
L = 10 mH
I
B
= 0
V
c la mp
= RATED V
CEO
(See fig. 4)
400
V
V
CE(sat )
Collector-Emit ter
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(s at)
Base-Emitt er
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
F E
DC Current Gain
I
C
= 5 A
V
CE
= 10 V
300
V
F
Diode F orward Voltage
I
F
= 10 A
2.5
V
Funct ional T est
(see fig. 1)
V
CC
= 24 V V
c la mp
= 400 V L= 7 mH
8
A
t
s
t
f
INDUCTIVE LO AD
St orage Time
Fall Time
(see fig. 3)
V
CC
= 12 V V
c la mp
= 300 V L= 7 mH
I
C
= 7 A I
B
= 70 mA
V
BE
= 0
R
BE
= 47
15
0.5
s
s
Pulsed: Pulse duration = 300
s, duty cycle 1.5 %
Safe Operating Area
DC Current Gain
BU931T / BUB931T
2/7
Collector Emitter Saturation Voltage
Collector Emitter Saturation Voltage
Base Emitter Saturation Voltage
Collector Emitter Saturation Voltage
Base Emitter Saturation Voltage
Switching Time Inductive Load
BU931T / BUB931T
3/7
FIGURE 1: Functional Test Circuit
FIGURE 2: Functional Test Waveforms
FIGURE 3: Switching Time Test Circuit
FIGURE 4: Sustaining Voltage Test Circuit
BU931T / BUB931T
4/7
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
0.051
D
2.40
2.72
0.094
0.107
D1
1.27
0.050
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
0.203
G1
2.4
2.7
0.094
0.106
H2
10.0
10.40
0.393
0.409
L2
16.4
0.645
L4
13.0
14.0
0.511
0.551
L5
2.65
2.95
0.104
0.116
L6
15.25
15.75
0.600
0.620
L7
6.2
6.6
0.244
0.260
L9
3.5
3.93
0.137
0.154
DIA.
3.75
3.85
0.147
0.151
P011C
TO-220 MECHANICAL DATA
BU931T / BUB931T
5/7
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