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POWER DESK 18W
June 2003
FEATURES
s
PRIMARY SWITCH MODE POWER SUPPLY
s
WIDE RANGE INPUT VOLTAGE 90 264 V
ac
s
18 W SINGLE OUTPUT
s
EMC COMPLIANCE ACCORDING TO EU
DIRECTIVES
s
SAFETY APPROVAL ACCORDING TO
EN60950 / EN60065
s
CE MARKED
s
INPUT FUSE PROTECTION
s
INPUT: SHAVER CONNECTOR
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OUTPUT VOLTAGE PRECISION: 5%
s
OUTPUT RIPPLE VOLTAGE <200 mVpp
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OUTPUT SHORT CIRCUIT PROTECTION
s
OUTPUT: 2 WIRES DC CORD TERMINATED
WITH 5.5 mm (ext. diam.) / 2.5 mm (int. diam.)
JACK CONNECTOR
s
COMPLIANT with ETSI STAND BY POWER
LOSSES REQUIREMENTS
DESCRIPTION
The GSAC-1215STMB is a high efficiency AC/DC
switch mode constant voltage generator.Designed
for a variety of residential users applications, this
desk-top power supply performs up to 18W max out-
put power.The output voltage and current levels are
set up by design in accordance with customer re-
quirements.
Typical reference values for the off shelf solution are
12V and 1.5A with the input V
ac
ranging from 90 to
264 V
rms
.Coming into a compact brick housing, as-
sembled with SHAVER INPUT CONNECTOR. Out-
put DC power is ensured via a 2 wires cord with strain
relief, terminated with a barrel connector. Typical
weight is 90 grams only, without cable.
ORDERING NUMBER: GSAC-1215STMB
REV.01
AC/DC POWER SUPPLY
POWER DESK 18W
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ELECTRICAL CHARACTERISTICS (T
amb
=25
)
C, unless otherwise specified.)
AGENCY APPROVALS
The GSAC-1215STMB is certified by competent agencies to comply with most popular safety and EMC require-
ments, including but not limited to:
EN60950
ETS300-342-1
EN60065
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit
V
i
Input Voltage
I
o
= 0 to 1.5 A
90
264
V
RMS
I
o
Output Current
V
i
= 90 to 264 V
rms
1.5
A
I
om
Minimum Output Current for
Continuos Operation Condition
V
i
=90 264 V
rms
25
mA
V
o
Output Voltage
V
i
= 90 to 264 V
RMS
I
o
= 1.5 A
11.4
12
12.6
V
V
o
Output Voltage
V
i
= 90 to 264 V
RMS
I
o
= 0 mA
12.6
V
V
or
Output Ripple
V
i
= 90 to 264 V
RMS
I
o
= 1.5 A
150
mVpp
I
osc
Output short circuit current
V
i
= 90 to 264 V
RMS
2.5
A
n
Efficiency
V
i
= 90 264 V
RMS
P
O
= 18W
80
%
P
stand
by
Power losses in no load
condition
V
i
= 230 V
RMS
I
o
= 0 mA
1
W
V
is
Isolation voltage
Input to output
3000
V
RMS
T
op
Operating Ambient
Temperature
0
40
C
T
stg
Storage Temperature Range
-20
70
C
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted
by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject
to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
2003 STMicroelectronics - All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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POWER DESK 18W
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