General
The specification defines the performance characteristics of a 25 W, SINGLEOutputlevelswitching power supply for IT/AV . The power supply has designed highly reliable and meet international safety and radiation requirements.
1.0Input Characteristics
1.1 Input voltage range and frequency
Nominal Voltages | Voltage Variation Range | Nominal Frequency | Frequency Variation Range |
100-240VAC | 90-270VAC | 50-60Hz | 45-65Hz |
Rated voltage: 100-240VAC
Voltage variation range: 90-270VAC
Rated frequency: 50-60Hz
Frequency change range: 45-65Hz
1.2Input Current
0.8A max | At AC low line input and DC output full load |
At low line AC and full load, the maximum input current is 0.8A
1.3Input protection
2A Fuse | The power supply shall be protected against power line surges and any abnormal condition. |
When the AC input voltage has surges and abnormal conditions, the 2A fuse will protect the power supply
1.4Input surge current
40A max | At power supply cold start, ambient temperature 25℃@220Vac |
At 25°C ambient temperature, when the input is 220Vac cold state, the maximum surge current is 40A
1.5Efficiency
1.5.1 77% min.At nominal input voltage,10% load and measured at end of DC cable
In the case of rated input voltage and 10% load, the efficiency of the DC line end is 77% minimum
1.5.2 Active mode efficiency:
More than 87%min of average efficiency of 25%,50%,75% and 100% load tested at 230Vac.(Warm up after 30 minutes)
230Vac input, the average efficiency under test 25%, 50%, 75%, 100% load conditions is at least 87%
Meet Energy Star level Ⅴ
1.6No Load Power consumption
0.075Wrms max | At AC nominal input@output no load |
In the case of rated input AC and output no-load, the maximum no-load loss is 0.075W
Meet Energy Star level Ⅴ
1.7Hold up time
20ms min | At AC 220V input@ output full load |
(1 half cycle) |
In the case of 220V input AC and output full load, the minimum holding time is 20ms.
2.0Output Characteristics
2.1Turn on delay
3Smax | At AC low line input@output full load |
In the case of AC low voltage input and output full load, the boot delay time is up to 3S
*Test on delay is measured from 0 voltage output to the main output regulation.
2.2DC output regulation
Voltage(V) | Loading(A) | ToleranceRange Total Regulation | Adjustable voltage | Range(V) | |
Max | Peak | ||||
+12.5 | 2A | ±5% | None | 11.875~13.125 |
*Total regulation involved line regulation load regulation cross regulation---etc.
*Line regulation is measured from 90Vac to 132Vac or 185vac to 264vac
*Load regulation is measured all output from min load to max load at 115vac
or 230vac nominal AC input voltage
*The total adjustment rate relates to the cross adjustment rate of linearity and load
*The test condition of linear adjustment rate is 90Vac to 132Vac or 185Vac to 264Vac
*The test condition of load regulation is the change from the minimum load to the maximum load under the input of 115Vac/230Vac.
2.3Ripple/noise
Voltage(V) | Ripple/Noise(pk-pk)(mV) |
+12.5 | 150mV |
*The ripple is measured from peak to peak with band width limit of 20MHZ
(By passed at the end of connector with 10uF electrolytic and 0.1uF ceramic diskcapacitor under DC output full Load, AC nominal input 25℃ambient temperature).
*Ripple is obtained by measuring the peak-to-peak value using an oscilloscope bandwidth of 20MHz
(Test conditions: at full DC output, rated AC input, and an ambient temperature of 25°C, a 10uF electrolytic capacitor and a 0.1uF ceramic capacitor are connected in parallel at the output end)
3.0 Protection
3.1 Short protection / Over current protection
The power supply will self-protect any output to ground, And auto recovery when
abnormal circuit faults remove.
The power supply can automatically resume normal operation when the short circuit is removed
*An output short circuit is defined as any output impedance of less than 0.1 ohms.
*When the effective value of output impedance is less than 0.1 ohm, it is defined as output short circuit
Voltage(V) | OCP Current(A) | Power in(W) | OCP method | ||
latch off | Current limit | Fold back | |||
+12.5 | 2.4-4.0 | X |
3.2Over voltage protection
Voltage(V) | OVP range | OVP Method | ||
Latch off | Auto recovery | Voltage limit | ||
+12.5 | 13.5-18V |
3.3 Over Temperature Protection
No deformation and no discoloration on case and will be shut down. That will be return
To normal state by ac reset, reset≤2 minutes.
When the power supply is turned off, the shell is not damaged or stained. When the AC input is restored, the shell can be restored to a normal state, and the recovery time is less than 2 minutes.
4.0 Leakage current:
Leakage current 0.25 mA max@240VAC
When the input voltage is 240Vac, the maximum leakage current is 0.25mA
5.0 Safety meet of: CCC, CB, CE
5.1 EMI/EMS standards EMI/EMS STANDARDS
5.1.1 EMI EN55013 EMS EN55020
5.1.2 EN61000-4-2 ESD immunity requirements
5.1.2.1 Air discharge +/- 15KV (B)
5.1.2.2 Contact discharge +/- 8KV (B)
5.2 EN61000-4-3 radiated disturbance field strength RS
10V/m (r.m.s) 80-1000Mz 80%AM (1KHz) sine-wave (A)
5.3 EN61000-4-4 Electrical Fast Transient Burst BURST
5.3.1 AC input port AC-input coupling 1KV (A)
5.3.2 AC input port AC-input coupling 2KV (B)
5.4 EN61000-4-5 Surge immunity test SCR
5.4.1 Common mode/differential mode +/- 6KV / +/- 6KV
5.5 Induced radio frequency fields conducted disturbances immunity test
10V 0.15-80 MHz 80%AM (1KHz) (A)
6.0HI-POT AND Insulation Resistance
HI-POT: Primary to secondary 3000Vac/10mA/60S.
IR: primary to secondary ≥100M ohm at 500Vdc
7.0Environment
TEMPERATURE AND HUMIDITY
OPERATING TEMPERATURE -25 DEGREES C TO 50 DEGREES C.
OPERATING HUMIDITY 5% TO 95% RH.(RELATIVE HUMIDITY).
STORAGE TEMPERATURE -40 DEGREES C TO 70 DEGREES C.
STORAGE HUMIDITY 5% TO 95% RH. (RELATIVE HUMIDITY).
Working temperature: -25℃-50℃
Working humidity: 5%-95% (relative humidity)
Storage temperature: -40℃-70℃
Storage humidity: 5%-95% (relative humidity)
8.0Vibration
SWEEP AND RESONANCE SEARCH
FREQUENCY DURATION AXIS AMPLITUDE
10~55Hz 30 MINUTES X,Y,Z 1G
9.0E-Cap Life
evaluation items | Index requirements | Evaluation conditions | Remarks |
Life of all electrolytic capacitors | 5 years | Condition 1: No additional heat dissipation measures; 30°C ambient temperature; rated high and low voltage input; output power 25W Condition 2: No additional heat dissipation measures; 60℃ ambient temperature, rated high and low voltage input; output power 10W |
10. Label specification:As Attachment
11. Mechanical:As Attachment
12. Appearance: As Attachment
13. Package:As Attachment