STR2550
High voltage fast-switching PNP power transistor
3
1
SOT-23
2
Figure 1. Internal schematic diagram
Datasheet
-
production data
Features
• Excellent h
FE
linearity up to 50 mA
• Miniature SOT-23 plastic package for surface mounting circuits
• Tape and reel packaging
• The NPN complementary type is STR1550
Applications
•
LED driving
Description
This device is a high voltage fast-switching PNP power transistor, manufactured using high voltage multi-epitaxial planar technology for high switching speeds.
It employs a cellular emitter structure with planar edge termination to enhance switching speeds, while maintaining a wide RBSOA.
Order code
STR2550
Table 1. Device summary
Marking Package
2550 SOT-23
Packing
Tape and reel
May 2014
This is information on a product in full production.
DocID022365 Rev 5 1/10 www.st.com
10
3
4
1
2
Contents
Contents
STR2550
Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2/10 DocID022365 Rev 5
STR2550 Electrical ratings
Symbol
V
CBO
V
CEO
V
EBO
I
C
I
CM
P
TOT
T
STG
T
J
Table 2. Absolute maximum ratings
Parameter
Collector-base voltage (I
E
= 0)
Collector-emitter voltage (I
B
= 0)
Emitter-base voltage (I
C
= 0)
Collector current
Collector peak current (t
P
< 5 ms)
Total dissipation at T amb
= 25 °C
Storage temperature
Max. operating junction temperature
Value
-500
-500
-7
-0.5
-1
500
-65 to 150
150
Unit
V
A
A
V
V mW
°C
°C
Table 3. Thermal data
Symbol Parameter
R thJA
(1)
Thermal resistance junction-ambient max
1.
Device mounted on PCB area of 1 cm².
Value
250
Unit
°C/W
DocID022365 Rev 5 3/10
Electrical characteristics STR2550
T case
= 25 °C unless otherwise specified.
Symbol
Table 4. Electrical characteristics
Parameter Test conditions Min.
Typ.
Max.
Unit
V
V
(BR)CEO
(1)
V
I
CBO
(BR)CBO
(BR)EBO
Collector cut-off current
(I
E
= 0)
Collector-base breakdown voltage
(I
E
= 0)
Collector-emitter breakdown voltage
(I
B
= 0)
Emitter-base breakdown voltage (I
C
= 0)
V
CE(sat)
(1)
Collector-emitter saturation voltage I
I
V
CB
= -500 V
I
C
= -100 µA
I
C
= -1 mA
I
E
= -100 µA
C
C
= -20 mA I
= -50 mA I
B
= -2 mA
B
= -10 mA
V
BE(sat)
(1)
Base-emitter saturation voltage
I
C
= -50 mA I
B
= -10 mA
V h
BE(on)
FE
(1)
Base-emitter on voltage I
C
= -50 mA V
CE
= -10 V
DC current gain
I
C
= -1 mA V
CE
= -10 V
I
C
= -50 mA V
CE
= -10 V
I
C
= -100 mA V
CE
= -10 V
1.
Pulse test: pulse duration ≤ 300 µs, duty cycle ≤ 2%
-500
-500
-7
100
100
10
-10
-0.2
-0.3
-1.0
-1.1
300
µA
V
V
V
V
V
V
V
4/10 DocID022365 Rev 5
STR2550 Electrical characteristics
2.1 Electrical characteristics (curves)
Figure 2. h
FE
vs. I
C
@ V
CE
= 5 V h
FE
AM17440v1
Figure 3. h
FE
vs. I
C
@ V
CE
= 10 V
AM17441v1 h
FE
100
10 100°C
-55°C
25°C
100
10 100°C
-55°C
25°C
1
0.001
0.01
0.1
I
C
(A)
Figure 4. V
CE(sat)
vs. I
C
@ h
FE
= 5
AM17442v1
V
CE(sat)
(V)
0.8
1
0.001
0.01
0.1
I
C
(A)
Figure 5. V
CE(sat)
vs. I
C
@ h
FE
= 10
AM17443v1
V
CE(sat)
(V)
0.8
0.6
0.6
0.4
0.2
0
0.001
100°C
150°C
0.01
25°C
-55°C
0.1
I
C
(A)
Figure 6. V
BE(sat)
vs. I
C
@ h
FE
=5
AM17444v1
V
BE(sat)
(V)
-55°C
0.9
0.8
0.7
0.6
0.5
100°C
0.4
0.3
0.001
25°C
150°C
0.01
0.1
I
C
(A)
0.4
100°C
0.2
150°C
25°C
0
0.001
0.01
-55°C
0.1
I
C
(A)
Figure 7. V
BE(sat)
vs. I
C
@ h
FE
= 10
AM17445v1
V
BE(sat)
(V)
0.9
-55°C
25°C
0.8
0.7
0.6
0.5
100°C
0.4
0.3
0.001
0.01
0.1
150°C
I
C
(A)
DocID022365 Rev 5 5/10
Electrical characteristics
Figure 8. V
BE(on)
vs. I
C
@ V
CE
= 10 V
AM17446v1
V
BE(on)
(V)
1.0
0.9
0.8
0.7
0.6
-55°C
25°C
0.5
100°C
0.4
0.3
0.001
0.01
150°C
0.1
I C (A)
STR2550
6/10 DocID022365 Rev 5
STR2550
3 Package mechanical data
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
® specifications, grade definitions and product status are available at: www.st.com
.
ECOPACK
®
is an ST trademark.
Figure 9. SOT-23 drawings
0053390_I
DocID022365 Rev 5 7/10
Package mechanical data
Dim.
D e e1
E
H
L
S
L1 a
A
A1
B
C
Table 5. SOT-23 mechanical data mm
Typ.
Min.
0.89
0
0.30
0.085
2.75
0.85
1.70
1.20
2.10
0.60
0.35
0.25
0°
Figure 10. SOT-23 recommended footprint
(a)
0.48
Max.
3.04
1.05
2.10
1.75
3.00
1.40
0.10
0.51
0.18
0.65
0.55
8°
STR2550
2.89
0.97
0.95
0.99
SOT-23 footp_I
8/10 a.
Dimensions are in mm.
DocID022365 Rev 5
STR2550 Revision history
Date
17-Oct-2011
05-Jun-2012
21-May-2013
27-May-2013
09-May-2014
Revision
Table 6. Document revision history
Changes
1
2
3
4
5
Initial release
Modified: features, Table 4
(V
CE(sat)
values, h
FE
test conditions and values)
– Modified:
Table 4 (V
BE(sat)
values and h
FE max. value
– Inserted: V
BE(on)
– Modified:
Table 4 (h
FE max. value)
– Added new section:
Electrical characteristics (curves)
– Document status promoted from preliminary to production data.
– Updated Table 1: Device summary and
Section 3: Package mechanical data
.
DocID022365 Rev 5 9/10
STR2550
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