®
BU941ZT/BU941ZTFP
BUB941ZT
HIGH VOLTAGE IGNITION COIL DRIVER
NPN POWER DARLINGTON
s
s
s
s
s
VERY RUGGED BIPOLAR TECHNOLOGY
BUILT IN CLAMPING ZENER
HIGH OPERATING JUNCTION
TEMPERATURE
WIDE RANGE OF PACKAGES
SURFACE-MOUNTING D2PAK (TO-263)
POWER PACKAGE IN TUBE (NO SUFFIX)
OR IN TAPE & REEL (SUFFIX "T4")
TO-220
3
1
2
1
2
3
TO-220FP
APPLICATIONS
s
HIGH RUGGEDNESS ELECTRONIC
IGNITIONS
1
3
D2PAK
TO-263
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CEO
V
EBO
I
C
I
CM
I
B
I
BM
P
tot
T
stg
T
j
Parameter
Collector-Emitter Voltage (I
B
= 0)
Emitter-Base Voltage (I
C
= 0)
Collector Current
Collector Peak Current
Base Current
Base Peak Current
BU941ZT
Total Dissipation at T
c
= 25 C
Storage Temperature
Max. Operating Junction Temperature
o
Value
350
5
15
30
1
5
BU941ZTFP
55
-65 to 175
175
BUB941ZT
150
-65 to 175
175
150
-65 to 175
175
Unit
V
V
A
A
A
A
W
o
o
C
C
January 1999
1/8
BU941ZT / BU941ZTFP / BUB941ZT
THERMAL DATA
TO-220
D2PAK
R
thj-case
Thermal Resistance Junction-case
Max
1
TO-220FP
2.7
o
C/W
ELECTRICAL CHARACTERISTICS
(T
case
= 25
o
C unless otherwise specified)
Symbol
I
CEO
I
EBO
V
CL
∗
V
CE(sat)
∗
V
BE(sat)
∗
h
FE
∗
V
F
Parameter
Collector Cut-off
Current (I
B
= 0)
Emitter Cut-off Current
(I
C
= 0)
Clamping Voltage
Collector-Emitter
Saturation Voltage
Base-Emitter
Saturation Voltage
DC Current Gain
Test Conditions
V
CE
= 300 V
V
CE
= 300 V
V
EB
= 5 V
I
C
= 100 mA
I
C
= 8 A
I
C
= 10 A
I
C
= 8 A
I
C
= 10 A
I
C
= 5 A
I
B
= 100 mA
I
B
= 250 mA
I
B
= 100 mA
I
B
= 250 mA
V
CE
= 10 V
300
2.5
10
V
A
350
T
j
= 125 C
o
Min.
Typ.
Max.
100
0.5
20
500
1.8
1.8
2.2
2.5
Unit
µA
mA
mA
V
V
V
V
V
Diode Forward Voltage I
F
= 10 A
Functional Test
(see fig. 1)
V
CC
= 24 V L= 7 mH
V
CC
= 12 V L= 7 mH V
clamp
= 300V
I
C
= 7 A
I
B
= 70 mA
R
BE
= 47
Ω
V
BE
= 0
t
s
t
f
INDUCTIVE LOAD
Storage Time
Fall Time
(see fig. 3)
15
0.5
µs
µs
∗
Pulsed: Pulse duration = 300
µs,
duty cycle 1.5 %
Safe Operating Area
DC Current Gain
2/8
BU941ZT / BU941ZTFP / BUB941ZT
DC Current Gain
Collector-emitter Saturation Voltage
Collector-emitter Saturation Voltage
Base-emitter Saturation Voltage
Base-emitter Saturation Voltage
Collector-emitter Saturation Voltage
3/8
BU941ZT / BU941ZTFP / BUB941ZT
FIGURE 1:
Functional Test Circuit
FIGURE 2:
Functional Test Waveforms
FIGURE 3:
Switching Time Test Circuit
4/8
BU941ZT / BU941ZTFP / BUB941ZT
TO-220 MECHANICAL DATA
DIM.
MIN.
A
C
D
D1
E
F
F1
F2
G
G1
H2
L2
L4
L5
L6
L7
L9
DIA.
13.0
2.65
15.25
6.2
3.5
3.75
0.49
0.61
1.14
1.14
4.95
2.4
10.0
16.4
14.0
2.95
15.75
6.6
3.93
3.85
0.511
0.104
0.600
0.244
0.137
0.147
4.40
1.23
2.40
1.27
0.70
0.88
1.70
1.70
5.15
2.7
10.40
0.019
0.024
0.044
0.044
0.194
0.094
0.393
0.645
0.551
0.116
0.620
0.260
0.154
0.151
mm
TYP.
MAX.
4.60
1.32
2.72
MIN.
0.173
0.048
0.094
0.050
0.027
0.034
0.067
0.067
0.203
0.106
0.409
inch
TYP.
MAX.
0.181
0.051
0.107
P011C
5/8
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