Page 1
Features
3
■ Monolithic Darlington transistor with integrated
antiparallel collector-emitter diode
■ Very high DC current gain
Applications
2STP535FP
NPN power Darlington transistor
■ Electronic ignition
■ AC-DC motor control
■ Alternator regulator
Description
The 2STP535FP is a planar NPN power
transistor in monolithic Darlington configuration
mounted in TO-220FP fully isolated package.
2
1
TO-220FP
Figure 1. Internal schematic diagram
R typ. = 75 Ω
Table 1. Device summary
Order code Marking Package Packaging
2STP535FP 2STP535FP TO-220FP Tube
August 2009 Doc ID 16132 Rev 1 1/8
www.st.com
8
Page 2
Electrical ratings 2STP535FP
1 Electrical ratings
Table 2. Absolute maximum ratings
Symbol Parameter Value Unit
V
V
V
I
P
T
Collector-base voltage (IE = 0) 180 V
CBO
Collector-emitter voltage (IB = 0) 180 V
CEO
Emitter-base voltage (IC = 0) 5 V
EBO
I
Collector current 8 A
C
Collector peak current (tp < 5 ms) 15 A
CM
I
Base current 1 A
B
Total dissipation at Tc ≤ 25 °C 37 W
tot
Storage temperature -65 to 150 °C
stg
T
Max. operating junction temperature 150 °C
J
Table 3. Thermal data
Symbol Parameter Value Unit
R
thj-case
Thermal resistance junction-case max 3.4 °C/W
2/8 Doc ID 16132 Rev 1
Page 3
2STP535FP Electrical characteristics
2 Electrical characteristics
(T
= 25 °C unless otherwise specified)
case
Table 4. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
I
CEO
I
CBO
I
EBO
Collector cut-off
current (IB = 0)
Collector-base cut-off
current (I
= 0)
E
Emitter-base cut-off
current (IC = 0)
= 180 V 50 µA
V
CE
= 180 V 50 µA
V
CB
V
= 5 V 100 µA
EB
Collector-emitter
(1)
V
CEO(sus)
V
CE(sat)
V
BE(on)
h
FE
V
F
1. Pulse test: pulse duration ≤ 300 µs, duty cycle ≤ 2 %.
sustaining voltage
= 0)
(I
B
(1)
Collector-emitter
saturation voltage
Base-emitter (on)
(1)
voltage
(1)
DC current gain
(1)
Diode forward voltage IF = 10 A 2.8 V
= 30 mA 180 V
I
C
= 3 A IB = 6 mA
I
C
= 8 A IB = 80 mA
I
C
= 8 A V
I
C
IC = 3 A V
= 8 A V
I
C
2
2.5
= 4 V 2.8 V
CE
CE
CE
= 4 V
= 4 V
1000
200
20000
V
V
Doc ID 16132 Rev 1 3/8
Page 4
Electrical characteristics 2STP535FP
2.1 Electrical characteristics (curves)
Figure 2. Collector-emitter saturation
voltage (h
= 500)
FE
Figure 4. DC current gain
Figure 3. Collector-emitter saturation
voltage (hFE = 100)
4/8 Doc ID 16132 Rev 1
Page 5
2STP535FP Package mechanical data
3 Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and products status are available at: www.st.com.
ECOPACK® is an ST trademark.
®
packages, depending on their level of environmental compliance. ECOPACK®
Doc ID 16132 Rev 1 5/8
Page 6
Package mechanical data 2STP535FP
TO-220FP mechanical data
mm
Dim.
.xaM.pyT.niM
6.44.4A
7.25.2B
57.25.2D
7.054.0E
157.0F
07.151.11F
5.151.12F
2.559.4G
7.24.21G
4.0101H
612L
6.036.823L
6.018.94L
6.39.25L
4.619.516L
3.997L
2.33aiD
L7
E
A
B
Dia
L6
H
L2
L3
6/8 Doc ID 16132 Rev 1
L5
D
F1
F2
F
G
G1
L4
7012510_Rev_J
Page 7
2STP535FP Revision history
4 Revision history
Table 5. Document revision history
Date Revision Changes
17-Aug-2009 1 Initial release
Doc ID 16132 Rev 1 7/8
Page 8
2STP535FP
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