Sanken Electric Co STR2024, STR2015, STR2012, STR2013, STR2005 Datasheet
STR2000
Series
Switching Type
Chopper • Self Oscillation Type
Features
● Requires only 3 external components
● Small size and high efficiency
● Low switching noise
● Variable output voltage
● Use of SANKEN's semiconductor elements ensures
high reliability
Applications
● For power supplies in office equipment such as
electronic typewriters, printers, and copiers
● For power supplies in VCRs and personal CB radios
(fixed station)
External View
■Absolute Maximum Ratings (Ta=25 °C)
75 (T
15 (T
Ratings
C=25°C)
C=100°C)
Parameter Symbol Unit
DC Input Voltage V
DC Output Current I
Power Dissipation PD W
Operating Temperature T
Storage Temperature T
Thermal Resistance ( junction-to-case)
Rth(j-c) 1.25 °C/W
STR2005 STR2012 STR2013 STR2015 STR2024
IN 45 50 V
O 2.0 (pulse 3.0) A
op –20 to +100 °C
stg –20 to +125 °C
■Electrical Characteristics (Ta=25 °C)
Ratings
Parameter Symbol STR2005 STR2012 STR2013 STR2015 STR2024 Unit
min typ max min typ max min typ max min typ max min typ max
IN 11 40 18 45 19 45 21 45 30 50
DC Input Voltage Range V
Output Voltage V
Efficiency %
Line Regulation mV
Load Regulation mV
Ripple Rejection dB
Switching Frequency kHz
V
Condition
VO 5.0 5.1 5.2 11.8 12.0 12.2 12.8 13.0 13.2 14.8 15.0 15.2 23.7 24.0 24.3
Condition
Condition
∆VOLINE 50 60 60 60 60
Condition
∆VOLOAD 100 100 100 100 100
Condition
RREJ 45 45 45 45 45
Condition
Condition
VIN=20V, IO=1.0A
η
f2525252525
7
285858585
VIN=20V, IO=1.0A
VIN=15 to 25V, IO=1.0A
VIN=20V, IO=0.5 to 1.5A
VIN=20V, IO=1.0A
VIN=20 to 28V, IO=1.0A
VIN=24V, IO=1.0A
VIN=24V, IO=1.0
VIN=24V, IO=0.5 to 1.5A
f=100 to 120Hz
VIN=24V, IO=1.0A
IO=1.0A
VIN=27V, IO=1.0A VIN=35V, IO=1.0A
AV
IN
=27V, IO=1.0A VIN=35V, IO=1.0A
VIN=23 to 31V, IO=1.0A VIN=30 to 40V, IO=1.0A
VIN=27V, IO=0.5 to 1.5A VIN=35V, IO=0.5 to 1.5A
VIN=27V, IO=1.0A VIN=35V, IO=1.0A
9
STR2000
Series
■Outline Drawing/Terminal Connections (unit:mm)
±0.3
±0.3
12.0
36.0
±0.2
24.4
Lot Number
Type
±0.3
21.2
6.0
max.
±0.2
2.0
±0.1
30°
3.2
φ
Plastic Mold Package Type
Flammability: UL94V-0
Terminal Connections
q Switching Output (backside of case)
w Output Voltage Adjustment
e Ground
r Output Voltage Detection
t Input
2.0
+0.2
1.0
–0.1
qwert
3.5
5.45×4
5.45
max.
4.7
min.
20.0
0.6
3.0
+0.2
–0.1
Weight: Approx. 14.5g
■Block Diagram
Tr
51
Ref. Voltage Circuit
R1
M1
1
D1
R2
R3
Tr
2
R4
R5
R6
C2C1
3
4
R7
2
R8
■Ta-PD Characteristics
24
150×150×2(3.3°C/W)
20
16
100×100×2(5.2°C/W)
12
75×75×2(7.6°C/W)
8
Power Dissipation PD(W)
Without heatsink
4
0
–20 0 20 40
Ambient Temperature Ta(°C)
Without Mica
With Silicone Grease
Heatsink: Aluminum
Unit: mm
60 80 100
■Standard External Circuit
10
VIN Vout
DC Input DC Output
GND GND
5
++
1000µF 1000µF
–
Type Inductance L
STR2005 200µH
STR2012 300µH
STR2013 300µH
STR2015 350µH
STR2024 400µH
1
34
■Variable Output Voltage Circuit
L
2
VR1
VR2
L
VR1
: VOUT down
OUT up
: V
1000
µF
VIN VOUT
DC Input DC Output
GND GND
5
++
1000
–
µF
1
324
VR
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