1-0. General Description

The purpose of the document is to specify a Single phase AC input, single output switching power supply. This specification is suitable for: EA10681TSeries
This product is AC to DC switching power transfer device, it can provide for a 48V,1.5A max & 72W max DC output with constant voltage source.
This Specification defines the input, output, performance characteristics, environment, noise and safety requirement for a power supply.
 
 

2-0. Input Requirements 2-1. AC Input Voltage

MaximumVoltage:    264Vac NormalVoltage:                    100~240Vac Minimum Voltage:90Vac
 

2-2. AC Input Frequency

MaximumFrequency:      63Hz NormalFrequency:                        50~60Hz MinimumFrequency:       47Hz
 

2-3. Input Current

2.0A (Max.) @ 100Vac/60Hz-240Vac/50Hz with full load.
 

2-4. Energy saving standards:

2-4-0.Designed to meet the following standard :
Energy Efficiency level VI
 

2-4-1.Efficiency

≧88.0% ( avg. ) at 115Vac/60Hz & 230Vac/50Hz input voltage and 25%, 50%, 75% &100% of max output current.
 

2-4-2 No Load Power Consumption.

No Load Watt <= 0.21W at normal line input.
 

2-5. Configuration

3-wire AC input (Line ,Neutral, FG)
 

2-6. Input Fuse

The hot line side of the input shall have a fuse, rating (3.15A/250V)

2-7. Inrush Current

≦ 80A at 110 Vac
≦ 120A at220Vac    At cold start, maximumload.
 

2-8. Line Regulation

This line regulation is less than ± 1%, of rated output voltage @ full load.
 

2-9. Hold Up Time

≧ 8.3 mSec., @ Normal line, with full load.
 

2-10. Rise Time

≦50 mSec., @ 115V AC input, with full load. From 10% to 90% of output voltage.
 

2-11. Turn-ON Time

The output voltage should rise to 90% of rated output voltage in less than 3 SEC. from AC apply to 110Vac start up.
 
 

3-0. Output Requirements

3-1. Output Voltage and Current
 

Output Voltage (Vdc)	Current Min.(A)	Current Max.(A)
+48V	0	1.5A

 
3-2. Load Regulation
 

Voltage (Vdc)	Tolerance (%)	Regulation (Vdc)
+48V	+5/, -5	45.6~50.4V

 
 
3-3. Dynamic Load Regulation
±5% excursion for 50% - 100% or 100% - 50% load change of DC output at any frequency up to 1KHz(duty 50%)

3-4. Ripple ＆Noise

The power supply shall not exceed the following limits on the indicated voltage for 60Hz or 50Hz ripple, Switching frequency ripple and noise and dynamic load variations measured with a 20MHz bandwidth

Output	Ripple/Noise
+48V	1.5% max. of rated output voltage

Input condition : for rated voltage , Output condition : for max load Ripple / Noise: 60Hz ripple + switching ripple and noise
Ripple & Noise are measured at the end of output cable which are added a 0.1uF ceramic capacitor and a 47uF electrolytic capacitor
 

3-5. Over Voltage Protection

150% Max. of rated voltage.
The output voltage shall be shutdown and auto-recover mode when OVP occurred.
 

3-6. Stability

2% Max. at constant load with constant input (after 30 minutes of operation).
 

3-7 Over Current Protection

110~200%output current. At 100-240Vac input,
The adapter can withstand continuous short at DC output and no damage. It will enter into normal condition if the fault condition is removed.
 

3-8.Temperature Rise

Less than 45℃ on top/bottom case at normal AC input & 80% load of DC output at environment temperature 25℃.
 

3-9. Drop-out

Output voltage shall remain within the specified regulation range, through the absence of a line input during 1/2 cycle, at full load and normal AC line input
 

3-10. Voltage Isolation

The DC ground will be isolated from the AC neutral and AC line.
 
 

4-0.Reliability

4-1. MTBF ( MIL-HDBK-217F )
The power supply shall be designed and produced to have a mean time between failure ( MTBF) of 100,000 hours at 25 degrees C

5-0. Environment

• Temperature
• Operating : 0 to 40℃
• Storage : -20 to 85℃

 

5-2Humidity

1. Operating : 10 to 90%
2. Storage:      5 to 90%

 

5-3Altitude

From sea level to 5,000Meter ( operation ) and 5,000Meter (non operation )
 
 

6-0. Safety

6-1. Hi-Pot Test
1800Vac, 3mA 2Sec. between primary and secondary circuit
 

6-2. Insulation Test

500Vdc, 2 Sec. between primary and secondary circuit IR should ≧ 50 MΩ.
 

6-3. Leakage Current

≦250 uA, at 240Vac/50 Hz
 

6-4. Safety

UL, CUL, TUV, CB, CE, FCC, PSE, BSMI, RCM CU, ARGENTINA
 

6-5. EMS

Items	Specification	Reference
ESD	Contact: ± 4KV	IEC 61000-4-2
	Air: ± 8KV
RS	Frequency: 1KHz Field Strength: 3V/M	IEC 61000-4-3
EFT	1.0 KV on input AC power ports.	IEC 61000-4-4
SURGE	Line to Line: ± 1KV (peak)	IEC 61000-4-5
	Line to F.G : ± 2KV (peak)