scope probe directly across output terminals of the power supply with load
terminated with 0.1 uF capacitor.
Transient Response
Main output: 750 μs typical response time for return to within 0.5% of final
value for a 50% load step within the regulation limits of minimum and
maximum load, ∆l/∆t <0.2 A/μs Maximum voltage deviation is 3.5%. Startup/
shutdown overshoot less than 2%.
Overvoltage Protection
Built in with firing point set per ratings table. OVP firing reduces voltage to
less than 50% of nominal voltage in 50 ms.
Turn-on time
Less than 1 second at 115 Vac, 25o C (inversely proportionate to input voltage
and thermistor temperature.
Efficiency
70% minimum at full rated load, nominal input voltage. Efficiency increases as
output voltage increases.
Input Protection
Internal ac fuse provided on all units. Inrush Current
Inrush is limited by internal thermistor. The inrush at 230 Vac, averaged over the
first ac half-cycle under cold start conditions will not exceed 32 A.
Temperature Coefficient
0.03%/°C typical on all outputs.
Environmental
Designed for 0 to 50°C operation at full rated output power; derate output current
and total output power by 2.5% per °C above 50°C. See Environmental Specifica-
tions on next page.
EMI/EMC Compliance
All models include built-in EMI filtering to meet the following emissions require-
ments:
EMI SPECIFICATIONS
Conducted Emissions
Static Discharge
RF Field Susceptibility
Fast Transients/Bursts
Surge Susceptibility
COMPLIANCE LEVEL
EN55022 Class B; FCC Class B
EN61000-4-2, 6 kV contact, 8 kV air
EN61000-4-3, 3 V/meter
EN61000-4-4, 2 kV, 5 kH
EN61000-4-5, 1 kV diff., 2 kV com.
Commercial Safety
Condor D.C. Power Supplies, Inc. declares under our sole responsibility that all GSC
models are in conformity with the applicable requirements of EN60950 following
the provisions of the Low Voltage Directive 73/23/EEC. All GSC models are ap-
proved to UL60950, CSA-C22.2 No. 60950, EN60950, IEC60950 with CB Certificate.
All specifications are typical at nominal input, full load at 25
O
C unless otherwise stated
Commercial
Model
GSC20-5
GSC20-12
GSC20-15
GSC20-24
GSC20-28
Output
5.1 V
12 V
15 V
24 V
28 V
Current
3.8 A
1.7 A
1.4 A
0.85 A
0.7 A
Load
Regulation
0.75%
0.75%
0.75%
0.75%
0.75%
Initial Setpoint
Tolerance
2.5%
2.5%
2.5%
2.5%
2.5%
OVP
Setpoint
6.2 ± 0.6 V
14 ± 1.1 V
18.5 ± 1.5 V
28 ± 2.5 V
34 ± 2.8 V
Ripple and
Noise
1.4%
1%
1%
1%
1%
* Add G suffix to model number for RoHS compliant model.
GSC20 MECHANICAL SPECIFICATIONS
ENVIRONMENTAL SPECIFICATIONS
Temperature (A)
Humidity (A)
Shock (B)
Altitude
Vibration (C)
OPERATING
See Individual Specs.
0 to 95% RH
20 g
pk
-500 to 10,000 ft
1.5 g
rms’
0.003 g
2
/Hz
NON-OPERATING
-40 to +85°C
0 to 95% RH
40 g
pk
-500 to 40,000 ft
5 g
rms’
0.026 g
2
/Hz
A. Units should be allowed to warm up/operate under non-condensing
conditions before application of power.
B. Random vibration—10 to 2000Hz, 6dB/octave roll-off from 350 to
2000Hz, 3 orthogonal axes. Tested for 10 min./axis operating and
1 hr./axis non-operating.
C. Shock testing—half-sinusoidal, 10 ± 3 ms duration, ± direction,
3 orthogonal axes, total 6 shocks.
SL Power Electronics, Inc. 6050 King Drive, Bldg. A, Ventura, CA 93003 USA. Phone:(805) 486 4565 Fax:(805) 487 8911 Email: info@slpower.com. Rev. 7/07.
However, SL Power accepts no responsibility for consequences arising from reproduction errors or inaccuracies. Specifications are subject to change without notice.
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