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
2/12
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
3/12
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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