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BU931
HIGH VOLTAGE IGNITION COIL DRIVER
■ VERYRUGGED BIPOLARTECHNOLOGY
■ HIGH OPERATINGJUNCTION
TEMPERATURE
■ WIDERANGE OF PACKAGES
APPLICATIONS
■ HIGH RUGGEDNESSELECTRONIC
IGNITIONS
BU931P
NPN POWER DARLINGTON
1
2
TO-3 TO-218
3
2
1
INTERNAL SCHEMATIC DIAGRAM
for TO-3
Emitter: pin 2
Base: pin1
Collector: tab
ABSOLUTE MAXIMUM RATINGS
Symb o l Parameter Val u e Uni t
BU931 BU931P
V
V
V
I
I
P
T
Collector-Emitter Voltage (VBE= 0) 500 V
CES
Collector-Emitter Voltage (IB= 0) 400 V
CEO
Emitter-Base Voltage ( IC=0) 5 V
EBO
Collect or Current 15 A
I
C
Collect or Peak Current 30 A
CM
Base Current 1 A
I
B
Base Peak Curr ent 5 A
BM
Tot al Dissipa t ion at Tc=25oC175135W
tot
Sto rage T emperature -65 t o 200 -65 t o 175
stg
Max. O per ating Junction Tem perat ure 200 175
T
j
o
C
o
C
September 1999
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BU931 / BU931P
THERMAL DATA
R
thj-case
Thermal Resistance Junction-case Max 1 1.1
TO-3 TO-218
o
C/W
ELECTRICAL CHARACTERISTICS (T
=25oC unlessotherwise specified)
case
Symbol Parameter Test Condition s Min. Typ. Max. Unit
I
CES
I
CEO
I
EBO
V
CEO(sus)
V
CE(sat)
V
BE(sat)
h
FE
V
t
∗
Pulsed: Pulse duration = 300 µs, duty cycle 1.5 %
Collector Cut -off
Current (V
BE
=0)
Collector Cut -off
Current (I
B
=0)
Emit ter Cut-off Current
=0)
(I
C
∗ Collector-Emitter
Sust aining Volt ag e
=0)
(I
B
∗ Collector-Emitter
Saturation Voltage
∗ Base-Emitt er
Saturation Voltage
=500V
V
CE
V
=500V Tj= 125oC
CE
V
=450V
CE
=450V Tj= 125oC
V
CE
V
=5V 20 mA
EB
I
= 100 mA L = 10 mH
C
V
= 400 V
Clamp
400 V
(See Fig. 4)
IC=7A IB=70mA
=8A IB=100mA
I
C
=10A IB= 250 m A
I
C
IC=7A IB=70mA
I
=8A IB=100mA
C
=10A IB= 250 m A
I
C
∗ DC Current Gain IC=5A VCE= 1 0 V 300
Diode F or war d V oltage IF=10A 2.5 V
F
Func tional Tes t
(see f ig. 1)
INDUCTIV E LO AD
St orage Time
s
t
Fall Time
f
(see f ig. 3)
V
=24V V
CC
clamp
L=7mH
VCC=12V V
clamp
L=7mH
=7A IB=70mA
I
C
=0 RBE=47Ω
V
BE
= 400 V
= 300 V
8A
15
0.5
100
0.5
100
0.5
1.6
1.8
1.8
2.2
2.4
2.5
µA
mA
µA
mA
V
V
V
V
V
V
µs
µs
Safe OperatingArea DC Current Gain
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BU931 / BU931P
CollectorEmitter SaturationVoltage
CollectorEmitter SaturationVoltage
Collector EmitterSaturation Voltage
BaseEmitter SaturationVoltage
Base Emitter SaturationVoltage
SwitchingTime InductiveLoad
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