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BULK128
High voltage fast-switching NPN power transistor
Features

High voltage capability Minimum lot-to-lot spread for reliable operation Very high switching speed
Applications
Electronic ballast for fluorescent lighting
SOT-82
1
2
3
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.
Figure 1.
Internal schematic diagram
Table 1.
Device summary
Marking BULK128 Package SOT-82 Packaging Tube
Order code BULK128
June 2008
Rev 2
1/11
www.st.com 11
Contents
BULK128
Contents
1 2 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Electrical characteristics (curves) ........................ 5
3 4 5
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
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BULK128
Electrical ratings
1
Electrical ratings
Table 2.
Symbol VCES VCEO VEBO IC ICM IB IBM Ptot Tstg TJ
Absolute maximum rating
Parameter Collector-emitter voltage (VBE = 0) Collector-emitter voltage (IB = 0) Emitter-base voltage (IC= 0, IB= 2 A, tp< 10 s) Collector current Collector peak current (tP < 5ms) Base current Base peak current (tP < 5ms) Total dissipation at Tc = 25C Storage temperature Max. operating junction temperature Value 700 400 V(BR)EBO 4 8 2 4 55 -65 to 150 150 Unit V V V A A A A W C C
Table 3.
Symbol
Thermal data
Parameter Value 2.27 80 Unit C/W C/W
Rthj-case Thermal resistance junction - case Rthj-amb Thermal resistance junction - ambient
3/11
Electrical characteristics
BULK128
2
Electrical characteristics
(Tcase = 25C unless otherwise specified) Table 4.
Symbol ICES
Electrical characteristics
Parameter Collector cut-off current (VBE = 0) Emitter base breakdown voltage (IC = 0) Collector-emitter sustaining voltage (IB = 0) Collector cut-off current (IB = 0) Test conditions VCE =700 V VCE =700 V IE = 10 mA TC = 125C 9 Min. Typ. Max. 50 500 Unit A A V
V(BR)EBO
18
VCEO(sus)
(1)
IC =10 mA
400
V
ICEO
VCE =400 V IC = 0.5 A _ __ __ IB = 0.1 A IB = 0.2 A IB = 0.5 A IB = 1 A IB = 0.1 A __ _ _ IB = 0.2 A IB = 0.5 A VCE = 5 V VCE = 5 V VCC = 125 V IB1 = -0.4 A 1.5 0.2 Vclamp = 200 V VBE(off) = -5 V 0.6 0.1 10 14 0.5
250 0.7 1 1.5
A V V V V V V V
VCE(sat) (1)
Collector-emitter saturation voltage
IC = 1 A IC = 4 A
IC = 2.5 A _ _
VBE(sat)
(1)
Base-emitter saturation voltage
IC = 0.5 A IC = 1 A IC = 2.5 A
1.1 1.2 1.3
hFE (1)
DC current gain Resistive load
IC = 10 mA IC = 2 A IC = 2 A IB1 = 0.4 A tp = 30 s IC = 2 A IB1 = 0.4 A RBB = 0
__
28
ts tf
Storage time Fall time Inductive load
3 0.4
s s
ts tf
Storage time Fall time
1 0.2
s s
1. Pulsed duration = 300 ms, duty cycle 1.5%
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BULK128
Electrical characteristics
2.1
Electrical characteristics (curves)
Figure 2. Safe operating area Figure 3. Derating curve
Figure 4.
DC current gain
Figure 5.
DC current gain
Figure 6.
Collector-emitter saturation voltage
Figure 7.
Base-emitter saturation voltage
5/11
Electrical characteristics Figure 8. Inductive load fall time Figure 9.
BULK128 Inductive load storage time
Figure 10. Resistive load fall time
Figure 11. Resistive load storage time
Figure 12. Reverse biased operating area
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BULK128
Test circuit
3
Test circuit
Figure 13. Inductive load switching test circuit
1) Fast electronic switch 2) Non-inductive Resistor 3) Fast recovery rectifier Figure 14. Resistive load switching test circuit
1) Fast electronic switch 2) Non-inductive Resistor
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Package mechanical data
BULK128
4
Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK(R) packages. These packages have a lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com
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BULK128
Package mechanical data
SOT-82 mechanical data
mm Dim. Min. A B B1 D E e e1 L Q Q1 H2 I 1 2.07 1.27 2.40 0.70 0.49 10.50 7.40 2.04 4.07 15.40 3.80 1.30 Typ. Max. 2.70 0.90 0.75 10.80 7.80 2.54 5.08 16
0016115_F
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Revision history
BULK128
5
Revision history
Table 5.
Date 21-Nov-2001 18-Jun-2008
Document revision history
Revision 1 2 Initial release Updated mechanical data Changes
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BULK128
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