®
BU941ZT/BU941ZTFP
BUB941ZT
HIGH VOLTAGE IGNITION COIL DRIVER
NPN POWER DARLINGTON
■
■
■
■
■
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")
APPLICATIONS
■
HIGH RUGGEDNESS ELECTRONIC
IGNITIONS
TO-220
1
2
3
1
D2PAK
TO-263
3
TO-220FP
1
2
3
INTERNAL SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CEO
V
EBO
I
C
I
CM
I
B
I
BM
Parameter
Collector-Emitter Voltage (I
B
= 0)
Emitter-Base Voltage (I
C
= 0)
Collector Current
Collector Peak Current
Base Current
Base Peak Current
P tot
T stg
T j
January 1999
Total Dissipation at T c
= 25 o
C
Storage Temperature
Max. Operating Junction Temperature
BU941ZT
150
-65 to 175
175
Value
350
5
15
30
1
5
BU941ZTFP BUB941ZT
55 150
-65 to 175
175
-65 to 175
175
Unit
A
A
V
V
A
A
W o
C o
C
1/8
BU941ZT / BU941ZTFP / BUB941ZT
THERMAL DATA
TO-220
D2PAK
1
TO-220FP
R thj-case
Thermal Resistance Junction-case Max
ELECTRICAL CHARACTERISTICS (T case
= 25 o
C unless otherwise specified)
Min.
Symbol Parameter Test Conditions
I
CEO
Collector Cut-off
Current (I
B
= 0)
V
CE
= 300 V
V
CE
= 300 V T j
= 125 o
C
I
EBO
Emitter Cut-off Current
(I
C
= 0)
V
CL
∗
Clamping Voltage
V
CE(sat)
∗
Collector-Emitter
Saturation Voltage
V
BE(sat)
∗
Base-Emitter
Saturation Voltage h
FE
∗
V
F
DC Current Gain
I
I
I
I
I
V
C
C
C
EB
= 5 V
= 100 mA
= 8 A I
C
= 10 A I
= 8 A I
C
= 10 A I
B
B
B
B
= 100 mA
= 250 mA
= 100 mA
= 250 mA
I
C
= 5 A V
CE
= 10 V
Diode Forward Voltage I
F
= 10 A
Functional Test
(see fig. 1)
V
CC
= 24 V L= 7 mH
INDUCTIVE LOAD V
CC
= 12 V L= 7 mH V clamp
= 300V t t s f
Storage Time
Fall Time
I
V
C
= 7 A I
BE
= 0 R
B
= 70 mA
BE
= 47
Ω
(see fig. 3)
∗
Pulsed: Pulse duration = 300
µ s, duty cycle 1.5 %
350
300
10
Typ.
15
0.5
2.7
500
1.8
1.8
2.2
2.5
2.5
o
C/W
Max.
100
0.5
20
Unit
µ
A mA mA
V
A
µ s
µ s
V
V
V
V
V
Safe Operating Area DC Current Gain
2/8
DC Current Gain
BU941ZT / BU941ZTFP / BUB941ZT
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
DIM.
G
G1
H2
L2
L4
L5
L6
L7
L9
DIA.
E
F
F1
F2
A
C
D
D1
BU941ZT / BU941ZTFP / BUB941ZT
TO-220 MECHANICAL DATA
MIN.
4.40
mm
TYP.
MAX.
4.60
MIN.
0.173
inch
TYP.
MAX.
0.181
1.23
1.32
0.048
0.051
2.40
2.72
1.27
0.094
0.107
0.050
0.49
0.61
1.14
1.14
0.70
0.88
1.70
1.70
0.019
0.024
0.044
0.044
0.027
0.034
0.067
0.067
4.95
2.4
5.15
2.7
0.194
0.094
0.203
0.106
10.0
10.40
0.393
0.409
16.4
13.0
0.645
14.0
0.511
0.551
2.65
15.25
6.2
3.5
3.75
2.95
15.75
6.6
3.93
3.85
0.104
0.600
0.244
0.137
0.147
0.116
0.620
0.260
0.154
0.151
P011C
5/8
DIM.
H
L2
L3
F1
F2
G
G1
D
E
F
A
B
L4
L6
L7
Ø
BU941ZT / BU941ZTFP / BUB941ZT
1.15
1.15
4.95
2.4
10
MIN.
4.4
2.5
2.5
0.45
0.75
28.6
9.8
15.9
9
3
TO-220FP MECHANICAL DATA
mm
TYP.
16
1.7
1.7
5.2
2.7
10.4
MAX.
4.6
2.7
2.75
0.7
1
30.6
10.6
16.4
9.3
3.2
MIN.
0.173
0.098
0.098
0.017
0.030
0.045
0.045
0.195
0.094
0.393
1.126
0.385
0.626
0.354
0.118
inch
TYP.
0.630
MAX.
0.181
0.106
0.108
0.027
0.039
0.067
0.067
0.204
0.106
0.409
1.204
0.417
0.645
0.366
0.126
¯
L6
L7
L3
L2 L4
1 2 3
6/8
DIM.
A
A1
G
L
D
E
L2
L3
B
B2
C
C2
BU941ZT / BU941ZTFP / BUB941ZT
MIN.
4.4
2.49
8.95
10
4.88
15
1.27
1.4
0.7
1.14
0.45
1.21
TO-263 (D
2
PAK) MECHANICAL DATA
mm
TYP.
MAX.
4.6
2.69
9.35
10.4
5.28
15.85
1.4
1.75
0.93
1.7
0.6
1.36
MIN.
0.173
0.098
0.027
0.044
0.017
0.047
0.352
0.393
0.192
0.590
0.050
0.055
inch
TYP.
MAX.
0.181
0.106
0.036
0.067
0.023
0.053
0.368
0.409
0.208
0.624
0.055
0.068
D
A
E
C2 DET AIL "A"
C
A1
B2 B
DET AIL "A"
G
L2 L
L3
P011P6/E
7/8
BU941ZT / BU941ZTFP / BUB941ZT
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
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© 1998 STMicroelectronics – Printed in Italy – All Rights Reserved
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