BD6xxx
Complementary power Darlington transistors
Features
■ Good h
■ High f
■ Monolithic Darlington configuration with
integrated antiparallel collector-emitter diode
linearity
FE
frequency
T
Applications
■ Linear and switching industrial equipment
Description
The devices are manufactured in planar base
island technology with monolithic Darlington
configuration.
.
1
2
3
SOT-32
Figure 1. Internal schematic diagram
R1 typ.= 15 KΩ R2 typ.= 100 Ω
Table 1. Device summary
Order codes Marking Package Packaging
BD677 BD677
BD677A BD677A
BD678 BD678
BD678A BD678A
BD679 BD679
SOT-32 Tube
BD679A BD679A
BD680 BD680
BD680A BD680A
BD681 BD681
BD682 BD682
January 2008 Rev 5 1/12
www.st.com
12
Contents BD6xxx
Contents
1 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Typical characteristic (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
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BD6xxx Absolute maximum ratings
1 Absolute maximum ratings
Table 2. Absolute maximum ratings
Val ue
BD677
BD677A
BD678
BD678A
60 80 100 V
Symbol Parameter
V
V
V
I
P
T
CBO
CEO
EBO
I
C
CM
I
B
TOT
stg
T
J
Collector-base voltage (IE = 0)
Collector-emitter voltage (IB = 0)
Emitte-base voltage (IC = 0) 5 V
Collector current 4 A
Collector peak current 6 A
Base current 0.1 A
Total dissipation at T
= 25°C 40 W
case
Storage temperature -65 to 150 °C
Max. operating junction temperature 150 °C
NPN
PNP
Note: For PNP types voltage and current values are negative
BD679
BD679A
BD680
BD680A
BD681
BD682
Unit
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Electrical characteristics BD6xxx
2 Electrical characteristics
(T
= 25°C; unless otherwise specified)
case
Table 3. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
CEO
I
CBO
I
EBO
V
CEO(sus)
V
CE(sat)
V
BE
Collector cut-off current
(IB = 0)
Collector cut-off current
= 0)
(I
E
Emitter cut-off current
= 0)
(I
C
Collector-emitter
(1)
sustaining voltage (I
Collector-emitter saturation
(1)
voltage
(1)
Base-emitter voltage
= 0)
B
V
= half rated V
CE
V
CE
V
CE
= rated V
= rated V
CEO
CBO
CBO
Tc = 100 °C
V
= 5 V
EB
for BD677, BD677A,
BD678, BD678A
IC = 50 mA
for BD679, BD679A,
BD680, BD680A
= 50 mA
I
C
for BD681, BD682
I
= 50 mA
C
for BD677, BD678,
BD679, BD680, BD681,
BD682
= 1.5 A IB = 30 mA
I
C
for BD677A, BD678A,
BD679A, BD680A
= 2 A IB = 40 mA
I
C
for BD677, BD678,
BD679, BD680, BD681,
BD682
= 1.5 A ___ V
I
C
CE
= 3 V
for BD677A, BD678A,
BD679A, BD680A
= 2 A V
I
C
CE
= 3 V
60
80
100
0.5 mA
0.2
mA
2
2mA
V
2.5
V
2.8
2.5 V
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BD6xxx Electrical characteristics
Table 3. Electrical characteristics (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
for BD677, BD678,
BD679, BD680, BD681,
BD682
= 1.5 A_ _ V
(1)
h
FE
DC current gain
I
C
CE
= 3 V
750
for BD677A, BD678A,
BD679A, BD680A
IC = 2 A_ _ V
1. Pulsed duration = 300 ms, duty cycle ≥1.5%.
CE
= 3 V
Note: For PNP types voltage e current values are negative.
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Electrical characteristics BD6xxx
2.1 Typical characteristic (curves)
Figure 2. DC current gain (NPN) Figure 3. DC current gain (PNP)
Figure 4. DC current gain (NPN) Figure 5. DC current gain (PNP)
Figure 6. Collector-emitter saturation
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voltage (NPN)
Figure 7. Collector-emitter saturation
voltage (PNP)
BD6xxx Electrical characteristics
Figure 8. Base-emitter saturation
voltage (NPN)
Figure 9. Base-emitter saturation
voltage (PNP)
Figure 10. Base-emitter voltage (NPN) Figure 11. Base-emitter voltage (PNP)
Figure 12. Resistive load switching time
(NPN, on)
Figure 13. Resistive load switching time
(PNP, on)
7/12
Electrical characteristics BD6xxx
Figure 14. Resistive load switching time
(NPN, off)
2.2 Test circuit
Figure 16. Resistive load switching test circuit
Figure 15. Resistive load switching time
(PNP, off)
1) Fast electronic switch
2) Non-inductive resistor
Note: For PNP types voltage e current values are negative.
8/12
BD6xxx Package mechanical data
3 Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
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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Package mechanical data BD6xxx
10/12
BD6xxx Revision history
4 Revision history
Table 4. Document revision history
Date Revision Changes
21-Jun-2004 4
1. Technology change from epybase to planar.
14-Jan-2008 5
2. Updated Section 2.1: Typical characteristic (curves) on
page 6
3. Content reworked to improve readability.
11/12
BD6xxx
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