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| 型号： | GSC20-28 |
| 厂商： | SL Power Electronics Manufacture of Condor/Ault Brands |
| 文件页数： | 1/2页 |
| 文件大小： | 0K |
| 描述： | PWR SPLY SWITCHING 28V 0.7A |
| 标准包装： | 1 |
| 系列： | GSC20 |
| 类型： | 标准产品 |
| 输出数： | 1 |
| 输出电压： | 28V |
| 输入电压： | 90 ~ 264VAC |
| 输出 - 1 @ 电流（最大）： | 28 VDC @ 700mA |
| 功率（瓦特）： | 20W |
| 电源类型： | 开关（开放框架） |
| 应用： | 商用 |
| 安装类型： | 底座安装 |
| 尺寸/尺寸： | 3.50" L x 2.00" W x 0.71" H（88.9mm x 50.8mm x 18.0mm） |
| 工作温度： | 0°C ~ 50°C |
| 效率： | 70% |
| 电源（瓦特）- 最大： | 20W |
| 批准： | CE，CSA，EN，IEC，UL |
| 负载调整： | 0.75% |
| 相关产品： | 271-2293-ND - COVER FOR GSC20 POWER SUPPLY 271-1131-ND - COVER FOR GSC20 POWER SUPPLY |
| 其它名称： | 271-1033 |
GSC20 Commercial
20 WATT GLOBAL PERFORMANCE SWITCHERS
GLOBAL PERFORMANCE SWITCHERS
Summary:
? Industry’s smallest 20 W switcher
? Business-card size (2.0 x 3.5 x 0.71”)
? Approved to UL60950, CSA-C22.2 No. 60950,
EN60950, IEC60950 with CB Certificate
? EMI FCC Class B, CISPR22B
? Overvoltage protection standard
? RoHS compliant models available (G suffix)
? marked to LVD
SPECIFICATIONS
Ac Input
90-264 Vac, 47-63 Hz single phase.
Input Current
Maximum input current at minimum 120 Vac, 60 Hz with full rated output
load is 0.6 A.
Hold-up Time
15 ms minimum from loss of ac input at full load, nominal line (115 Vac).
Output Power
Normal continuous output power is 20 W, 24 W peak for 60 s maximum
duration, 10% duty cycle. Factory set to begin power limiting at approxi-
mately 28 W.
Output Regulation
Regulation from initial setpoint measured by changing load from 5% load to
50% load or 50% load to full load in either direction. Initial setpoint tolerance
is measured at 50% load. A minimum load of 5% of the output current is
required to maintain proper regulation.
Overload Protection
Fully protected against short circuit and output overload. Short circuit pro-
tection is cycling type power limit
Output Noise
0.5% rms, 1% pk-pk, 20 MHz bandwidth, differential mode. Measured with
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.
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 COMPLIANCE LEVEL
Conducted Emissions EN55022 Class B; FCC Class B
Static Discharge EN61000-4-2, 6 kV contact, 8 kV air
RF Field Susceptibility EN61000-4-3, 3 V/meter
Fast Transients/Bursts EN61000-4-4, 2 kV, 5 kH
Surge Susceptibility 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.
Turn-on time
Less than 1 second at 115 Vac, 25o C (inversely proportionate to input voltage
and thermistor temperature.
All specifications are typical at nominal input, full load at 25 O C unless otherwise stated
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