STR2000 Series
Switching Type
Chopper • Self Oscillation Type
Features
q
q
q
q
q
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
q For power supplies in office equipment such as
electronic typewriters, printers, and copiers
q For power supplies in VCRs and personal CB radios
(fixed station)
External View
s Absolute Maximum Ratings (Ta=25°C)
Parameter
Ratings
Symbol
Unit
STR2005 STR2012 STR2013 STR2015 STR2024
DC Input Voltage
VIN
45
DC Output Current
IO
2.0 (pulse 3.0)
Power Dissipation
50
V
A
75 (TC=25°C)
PD
W
15 (TC=100°C)
Operating Temperature
Top
–20 to +100
°C
Storage Temperature
Tstg
–20 to +125
°C
Rth(j-c)
1.25
°C/W
Thermal Resistance ( junction-to-case)
s Electrical Characteristics (Ta=25°C)
Ratings
Parameter
Symbol
STR2005
min
DC Input Voltage Range
VIN
STR2012
typ max min typ
11
40
18
max min
45
Condition
Output Voltage
VO
η
5.0
5.1
72
∆VOLINE
∆VOLOAD
RREJ
f
45
45
21
Unit
typ max
30
50
45
VIN=27V, IO=1.0A
V
60
VIN=27V, IO=1.0A
VIN=35V, IO=1.0A
60
60
60
VIN=20 to 28V, IO=1.0A
100
45
%
mV
VIN=23 to 31V, IO=1.0A VIN=30 to 40V, IO=1.0A
100
VIN=24V, IO=0.5 to 1.5A
45
85
V
VIN=35V, IO=1.0A
85
85
VIN=24V, IO=1.0A
100
Condition
Switching Frequency
typ max min
VIN=24V, IO=1.0A
50
Condition VIN=20V, IO=0.5 to 1.5A
Ripple Rejection
typ max min
19
85
Condition VIN=15 to 25V, IO=1.0A
Load Regulation
STR2024
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 VIN=20V, IO=1.0A
Line Regulation
STR2015
IO=1.0A
Condition VIN=20V, IO=1.0A
Efficiency
STR2013
100
100
mV
VIN=27V, IO=0.5 to 1.5A VIN=35V, IO=0.5 to 1.5A
45
45
25
25
dB
f=100 to 120Hz
25
Condition V IN=20V, I O=1.0A
25
25
V IN =24V, I O=1.0A
kHz
VIN=27V, IO=1.0A VIN=35V, IO =1.0A
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