BUL128D-B
HIGH VOLTAGE FAST-SWITCHING
NPN POWER TRANSISTOR
n n n n
STMicroelectronics PREFERRED SALES
TYPE
NPN TRANSISTOR
HIGH VOLTAGE CAPABILITY
LOW SPREAD OF DYNAMIC PARAMETERS n
MINIMUM LOT-TO-LOT SPREAD FOR
RELIABLE OPERATION n
VERY HIGH SWITCHING SPEED n
INTEGRATED ANTIPARALLEL
COLLECTOR- EMITTER DIODE
APPLICATIONS n n
ELECTRONIC BALLAST FOR
FLUORESCENT LIGHTING
FLYBACK AND FORWARD SINGLE
TRANSISTOR LOW POWER CONVERTERS
DESCRIPTION
The device is manufactured using high voltage
Multi Epitaxial Planar technology for high switching speeds and medium voltage capability.
It uses a Cellular Emitter structure with planar edge termination to enhance switching speeds while maintaining the wide RBSOA.
The device is designed for use in lighting applications and low cost switch-mode power supplies.
Table 1: Order Codes
Part Number
BUL128D-B
Marking
BUL128D-B
Figure 1: Package
Package
TO-220
TO-220
1
2
3
Figure 2: Internal Schematic Diagram
Packaging
Tube
Table 2: Absolute Maximum Ratings
Symbol
V
CES
V
CEO
V
EBO
I
C
I
CM
I
B
I
BM
February 2005
Parameter
Collector-Emitter Voltage (V
BE
= 0)
Collector-Emitter Voltage (I
B
= 0)
Emitter-Base Voltage
(I
C
= 0, I
B
= 2 A, t p
< 10 µs, T
J
= 150 o
C)
Collector Current
Collector Peak Current (t p
< 5ms)
Base Current
Base Peak Current (t p
< 5ms)
Value
700
400
V
(BR)EBO
2
4
4
8
Rev. 2
Unit
V
V
V
A
A
A
A
1/8
BUL128D-B
Symbol
P tot
T stg
T
J
Parameter
Total Dissipation at T
C
= 25 o C
Storage Temperature
Max. Operating Junction Temperature
Value
70
-65 to 150
150
Table 3: Thermal Data
R thj-case
Thermal Resistance Junction-Case Max
R thj-amb
Thermal Resistance Junction-Ambient Max
1.78
62.5
.
Table 4: Electrical Characteristics (T case
= 25 o
C unless otherwise specified)
Symbol Parameter Test Conditions Min.
Typ.
Max.
I
CES
Collector Cut-off Current
(V
BE
= 0 V)
V
CE
= 700 V
V
CE
=700 V T j
= 125 o
C
V
CE
= 400 V
V
I
CEO
(BR)EBO
Collector Cut-off Current
(I
B
= 0)
Emitter-Base
Breakdown Voltage
I
E
= 10 mA
(I
C
= 0 )
V
CEO(sus)
* Collector-Emitter
Sustaining Voltage
(I
B
= 0 )
V
CE(sat)
* Collector-Emitter
Saturation Voltage
I
C
= 100 mA L = 25 mH
V
BE(sat) h
FE
*
* Base-Emitter Saturation
Voltage
DC Current Gain
I
C
= 0.5 A I
B
= 0.1 A
I
C
= 1 A I
B
= 0.2 A
I
C
= 2.5 A I
B
= 0.5 A
I
C
= 4 A I
B
= 1 A
I
C
= 0.5 A I
B
= 0.1 A
I
C
= 1 A I
B
= 0.2 A
I
C
= 2.5 A I
B
= 0.5 A
I
C
= 10 mA V
CE
= 5 V
I
C
= 2 A V
CE
= 5 V
V
CC
=200 V I
C
= 2 A t t s f
RESISTIVE LOAD
Storage Time
Fall Time
I
B1
= 0.4 A V
BE(off)
= -5 V
R
BB
= 0 W L = 200 µH
(see figure 15)
INDUCTIVE LOAD V
CC
=250 V I
C
= 2 A t s
Storage Time I
B1
= 0.4 A I
B2
= -0.4 A t f
Fall Time
Tp = 30 µs (see figure 14)
* Pulsed: Pulsed duration = 300 m s, duty cycle
≤ 1.5
%.
9
400
10
12
2
0.5
0.6
0.1
0.2
100
500
250
18
0.7
1
1.5
1.1
1.2
1.3
32
2.9
Unit
W
°C
°C o
C/W o
C/W
Unit
µA
µA
µA
V
V
µs
µs
µs
µs
V
V
V
V
V
V
V
2/8
Figure 3: Safe Operating Area Figure 6: Derating Current
BUL128D-B
Figure 4: DC Current Gain Figure 7: DC Current Gain
Figure 5: Collector-Emitter Saturation Voltage Figure 8: Base-Emitter Saturation Voltage
3/8
BUL128D-B
Figure 9: Inductive Load Fall Time Figure 12: Inductive Load Stoarage Time
Figure 10: Resistive Load Fall Time Figure 13: Resistive Load Stoarage Time
Figure 11: Reverse Biased Operating Area
4/8
Figure 14: Inductive Load Switching Test Circuit
1) Fast electronic switch
2) Non-inductive Resistor
3) Fast recovery rectifier
Table 15: Restistive Load Switching Test Circuit
1) Fast electronic switch
2) Non-inductive Resistor
BUL128D-B
5/8
BUL128D-B
DIM.
e e1
F
H1
J1
L
L1
L20
L30
øP
Q
A b b1 c
D
E
MIN.
4.40
0.61
1.15
0.49
15.25
10
2.40
4.95
1.23
6.20
2.40
13
3.50
3.75
2.65
TO-220 MECHANICAL DATA
mm.
TYP MAX.
4.60
0.88
1.70
0.70
15.75
10.40
2.70
5.15
1.32
6.60
2.72
14
3.93
MIN.
0.173
0.024
0.045
0.019
0.60
0.393
0.094
0.194
0.048
0.244
0.094
0.511
0.137
16.40
28.90
3.85
2.95
0.147
0.104
inch
TYP.
0.645
1.137
MAX.
0.181
0.034
0.066
0.027
0.620
0.409
0.106
0.202
0.052
0.256
0.107
0.551
0.154
0.151
0.116
6/8
Table 5:
Version
01-Oct-2002
15-Feb-2005
Release Date
1
1
First Release.
Added table 1 on page 1.
Change Designator
BUL128D-B
7/8
BUL128D-B
8/8
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