STR2000 Datasheet, PDF (1/3 Pages) Sanken electric – Switching Type(Chopper * Self Oscillation Type)

STR2000 Series
Switching Type Chopper • Self Oscillation Type
Features
q Requires only 3 external components
q Small size and high efficiency
q Low switching noise
q Variable output voltage
q 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
DC Input Voltage
DC Output Current
Power Dissipation
Operating Temperature
Storage Temperature
Thermal Resistance ( junction-to-case)
Symbol
Ratings
STR2005 STR2012 STR2013 STR2015 STR2024
VIN
45
50
IO
2.0 (pulse 3.0)
75 (TC=25°C)
PD
15 (TC=100°C)
Top
–20 to +100
Tstg
–20 to +125
Rth(j-c)
1.25
Unit
V
A
W
°C
°C
°C/W
s 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
VIN 11
DC Input Voltage Range
Condition
40 18
45 19
45 21
IO=1.0A
45 30
50
V
Output Voltage
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
V
Condition VIN=20V, IO=1.0A
VIN=24V, IO=1.0A
VIN=27V, IO=1.0A VIN=35V, IO=1.0A
Efficiency
η
72
Condition VIN=20V, IO=1.0A
85
85
VIN=24V, IO=1.0A
85
85
%
VIN=27V, IO=1.0A VIN=35V, IO=1.0A
Line Regulation
∆VOLINE
50
Condition VIN=15 to 25V, IO=1.0A
60
60
60
60
mV
VIN=20 to 28V, IO=1.0A
VIN=23 to 31V, IO=1.0A VIN=30 to 40V, IO=1.0A
Load Regulation
∆VOLOAD
100
Condition VIN=20V, IO=0.5 to 1.5A
100
100
100
100
mV
VIN=24V, IO=0.5 to 1.5A
VIN=27V, IO=0.5 to 1.5A VIN=35V, IO=0.5 to 1.5A
RREJ
45
45
45
45
45
Ripple Rejection
dB
Condition
f=100 to 120Hz
Switching Frequency
f
25
Condition VIN=20V, IO=1.0A
25
25
VIN=24V, IO=1.0A
25
25
kHz
VIN=27V, IO=1.0A VIN=35V, IO=1.0A
9