2STR1215
3
1
SOT-23
Low voltage fast-switching NPN power transistor
2
Figure 1. Internal schematic diagram
Datasheet
-
production data
Features
• Very low collector-emitter saturation voltage
• High current gain characteristic
• Fast switching speed
• Miniature SOT-23 plastic package for surface mounting circuits
Applications
•
LED
•
Battery charger
•
Voltage and relay drive
•
Voltage regulation
Description
The 2STR1215 is a NPN transistor manufactured using new “PB-HCD” (Power Bipolar High Current
Density) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage.
Order code
2STR1215
Marking
1215
Table 1. device summary
Package
SOT-23
Packaging
Tape and reel
May 2016
This is information on a product in full production.
DocID12090 Rev 5 1/11 www.st.com
1
2
Contents
Contents
3
4
2STR1215
Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1
Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2
Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1
SOT-23 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2/11 DocID12090 Rev 5
2STR1215 Electrical ratings
Symbol
I
CM
P tot
T stg
T
J
V
CBO
V
CEO
V
EBO
I
C
Table 2. Absolute maximum rating
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 range
Operating junction temperature range
Table 3. Thermal data
Symbol Parameter
R thj-amb
(1)
Thermal resistance junction-amb max
1.
Device mounted on PCB area of 1 cm
2
Value
1.5
3
0.5
15
15
5
-65 to 150
Value
250
Unit
°C/W
Unit
A
A
W
V
V
V
°C
DocID12090 Rev 5 3/11
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Electrical characteristics
2 Electrical characteristics
2STR1215
(T case
= 25°C unless otherwise specified)
Symbol
Table 4. Electrical characteristics
Parameter Test conditions
I
I
CBO
EBO
Collector cut-off current
(I
E
=0)
Emitter cut-off current
(I
C
=0)
V
V
(BR)CEO
(1)
V
(BR)CBO
(BR)EBO
Collector-base breakdown voltage
(I
E
= 0)
Collector-emitter breakdown voltage
(I
B
= 0)
Emitter-base breakdown voltage (I
C
= 0)
V
CB
= 15 V
V
EB
= 4 V
I
C
= 100 µA
I
C
= 10 mA
I
E
= 100 µA
V
CE(sat)
(1)
Collector-emitter saturation voltage
I
C
= 0.1 A I
B
= 1mA
I
C
= 1 A I
B
= 100 mA
I
C
= 2 A I
B
= 200 mA
V
BE(sat)
(1)
Base-emitter saturation voltage
I
C
= 1 A I
B
= 100 mA h
FE
(1)
DC current gain
I
C
= 50 mA V
CE
= 2 V
I
C
= 0.5 A V
CE
= 2 V
I
C
= 1 A V
CE
= 2 V
I
C
= 2 A V
CE
= 2 V
C
CBO
Collector-base capacitance (I
E
= 0)
V
CB
= 10 V f = 1 MHz t on
Turn-on time t off
Turn-off time
1.
Pulsed duration = 300 µs, duty cycle
≤
1.5%
Resistive load
I
C
= 1.5 A V
CC
= 10 V
I
B1
= -I
B2
= 150 mA
Min.
Typ.
Max.
Unit
15
15
5
200
200
130
80
0.1
0.1
0.25
0.15
0.5
0.4
0.85
0.9
1.25
280
16
60
310
560
µA
µA
V
V
V
V
V
V
V pF ns ns
4/11 DocID12090 Rev 5
2STR1215
2.1
Electrical characteristics
Electrical characteristics (curves)
Figure 2. DC current gain Figure 3. Collector-emitter saturation voltage
Figure 4. Base-emitter saturation voltage Figure 5. Resistive load switching time
Figure 6. Resistive load switching time
Figure 7. Resistive load switching time
DocID12090 Rev 5 5/11
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Electrical characteristics
Figure 8. Resistive load switching test circuit
2STR1215
1) Fast electronic switch
2) Non-inductive resistor
6/11 DocID12090 Rev 5
2STR1215
3 Package mechanical data
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.
Figure 9. SOT-23 package outline
DocID12090 Rev 5
B5(9B
7/11
11
Package mechanical data
Dim.
b b1 c c1
D
E
A
A1
A2
A3
R
R1
Θ
Θ
1
Θ 2
L
L1
L2
E1 e e1
Table 5. SOT-23 mechanical data mm
Min.
Typ.
0
1
0.60
0.36
0.36
0.14
0.14
2.826
2.60
1.526
0.90
1.80
0.35
1.10
0.65
0.38
0.15
2.926
2.80
1.626
0.95
1.90
0.45
0.59 REF
0.25 BSC
0.05
0.05
0°
3°
6°
5°
2STR1215
Max.
1.25
0.15
1.20
0.70
0.50
0.45
0.20
0.16
3.026
3.00
1.726
1.00
2.00
0.60
8°
7°
14°
8/11 DocID12090 Rev 5
2STR1215 Package mechanical data
Figure 10. SOT-23 recommended footprint (dimensions are in mm)
)RRWSULQW
DocID12090 Rev 5 9/11
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Revision history
Date
09-Feb-2006
18-Jul-2006
08-Sep-2008
08-Jan-2009
16-May-2016
Revision
Table 6. Document revision history
Changes
1
2
3
4
5
Initial release
New template
Updated the SOT-23 mechanical data.
Updated Figure 1: Internal schematic diagram
Updated statement ECOPACK®
Updated: description
Updated: Table 1
Updated: Section 3.1: SOT-23 package information
Minor text changes.
2STR1215
10/11 DocID12090 Rev 5
2STR1215
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