SGS Thomson Microelectronics BU941P, BU941 Datasheet
BU941/BU941P
HIGH VOLTAGE IGNITION COIL DRIVER
■ NPNDARLINGTON
■ INTEGRATED ANTIPARALLEL
COLLECTOR-EMITTER DIODE
■ VERYRUGGED BIPOLARTECHNOLOGY
■ HIGH OPERATINGJUNCTION
TEMPERATURE
■ WIDERANGE OF PACKAGES
APPLICATIONS
■ HIGH RUGGEDNESS ELECTRONIC
IGNITIONS
BU941PFI
NPN POWER DARLINGTON
TO-3
1
2
3
2
TO-218 ISOWATT218
1
3
2
1
INTERNAL SCHEMATIC DIAGRAM
for TO-3
Emitter: pin 2
Base: pin1
Collector: tab
ABSOLUTE MAXIMUM RATINGS
Symb o l Para meter Val u e Uni t
BU941 BU941 P BUB941P F I
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
Collector Cur r en t 15 A
I
C
Collector Peak Curre nt 30 A
CM
Base Curre nt 1 A
I
B
Base Peak Current 5 A
BM
Tot al Dissipat ion at Tc=25oC 180 155 65 W
tot
Sto rage Temperature -65 to 200 -65 to 175 -65 to 175
stg
Max. Oper at in g Junct ion Temperature 200 175 175
T
j
o
C
o
C
December 1999
1/8
BU941 / BU941P/ BUB941PFI
THERMAL DATA
R
thj-case
Thermal Resistance Junction-case Max 0.97 0.97 2.3
TO-3 TO-218 ISOWATT218
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)
Collec t or Cut-off
Current (V
BE
=0)
Collec t or Cut-off
Current (I
B
=0)
Emitt er Cut-of f Curren t
=0)
(I
C
∗ Collec t or- Emitter
Sust aining Voltage
=0)
(I
B
V
∗ Collec t or -Emitter
CE(sat)
Saturation Voltage
V
∗ Base-Emi tter
BE(sat )
Saturation Voltage
h
∗ DC Cur rent Gain IC=5A VCE= 10 V 300
FE
V
Diode F orw a rd Voltag e IF=10A 2.5 V
F
Func tiona l Tes t
(see fig. 1)
INDUCTI VE LOAD
t
s
t
f
Storage Time
Fall Time
(see fig. 3)
∗
Pulsed: Pulse duration = 300 µs, duty cycle 1.5 %
V
=500V
CE
=500V Tj=125oC
V
CE
=450V
V
CE
V
=450V Tj=125oC
CE
V
=5V 20 mA
EB
I
=100mA L=10mH
C
=400V
V
Clamp
400 V
100
0.5
100
0.5
(See FIG. 4)
IC=8A IB=100mA
=10A IB=250mA
I
C
=12A IB=300mA
I
C
IC=8A IB=100mA
=10A IB=250mA
I
C
=12A IB=300mA
I
C
V
=24V V
CC
Clamp
=400V
10 A
1.6
1.8
2
2.2
2.5
2.7
L=7mH
VCC=12V V
=0 RBE=47Ω
V
BE
L=7mH I
=70mA
I
B
Clamp
=7A
C
=300V
15
0.5
µA
mA
µA
mA
V
V
V
V
V
V
µs
µs
Safe Operating Area DC Current Gain
2/8
BU941 / BU941P / BUB941PFI
DCCurrent Gain
Collector-emitterSaturation Voltage
Collector-emitterSaturationVoltage
Base-emitterSaturation Voltage
SwitchingTime InductiveLoad (see fig.3)
3/8
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