STR20000
Series
Switching Type
Features
q
q
q
q
q
Requires only 4 external components
Small size and high efficiency
Low switching noise
Variable output voltage
Use of Sanken semiconductors components ensures
high reliability
Chopper • Self Oscillation Type
Applications
q
For power supplies in office equipment such as
electronic typewriters, printers and copiers
q
For power supplies in VCRs, personal CB radios
(fixed stations), etc.
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
V
IN
I
O
P
D
T
op
T
stg
R
th(j-c)
Ratings
STR20005
45
2.0 (pulse 3.0)
55 (T
C
=25°C)
13 (T
C
=100°C)
–20 to +100
–20 to +125
1.8
V
A
W
°C
°C
°C/W
Unit
s
Electrical Characteristics (Ta=25°C)
Ratings
Parameter
Symbol
min
DC Input Voltage Range
V
IN
Condition
V
O
Condition
5.0
8
I
O
=1.0A
5.1
V
IN
=20V, I
O
=1.0A
72
V
IN
=20V, I
O
=1.0A
50
V
IN
=15 to 25V, I
O
=1.0A
100
V
IN
=20V, I
O
=0.5 to 1.5A
45
f=100 to 120Hz
30
V
IN
=20V, I
O
=1.0A
5.2
STR20005
typ
max
40
V
Unit
Output Voltage
V
Efficiency
η
Condition
∆V
OLINE
Condition
∆V
OLOAD
Condition
R
REJ
Condition
f
Condition
%
Line Regulation
mV
Load Regulation
mV
Ripple Rejection
dB
Switching Frequency
kHz
12
SANKEN [ SANKEN ELECTRIC ]
