1. Introduction
1.1 Power Supply Overview
This adapter has the feature such as high efficiency and high reliability, and it also has the protection: SCP /OCP and OVP, etc.
Table 1: Power Supply Overview
| Input Voltage Range | Total Power | Efficiency | MTBF |
|---|---|---|---|
| 100Vac - 240Vac | 48W | ≥87.8% | ≥30K hrs |
| Output | Regulation | Min. Current | Typ. Current |
| 12V | ±5% (full load) | 0A | 4A |
2. Electrical Specification
2.1 AC Input
2.1.1 Input Voltage
Table 2: List the AC input operating voltage range. The power shall work normally and meet all electrical requirements throughout rated input voltage condition.
Table 2: AC Input Voltage Limitations
| Minimum | Rate | Maximum |
|---|---|---|
| 90Vac | 100Vac - 240Vac | 264Vac |
2.1.2 Input Protection Voltage
Table 3: AC Input Protection Voltage Limitations
| Undervoltage Protection | Undervoltage Protection Restore | Overvoltage Protection | Overvoltage Protection Restore |
|---|---|---|---|
| 69V | 77V | 299V | 288V |
2.1.3 Input Frequency
Table 4: List the AC input operating frequency range. The power shall work normally and meet all electrical requirements within rated frequency condition.
Table 4: AC Input Frequency Limitations
| Minimum | Rate | Maximum |
|---|---|---|
| 47Hz | 60Hz/50Hz | 63Hz |
2.1.4 Inrush Current
At 25℃, when input the maximum voltage, inrush current ≤50A.
2.1.5 No Load Input Power
The no load input power should no more than 0.1W under the rated input voltage condition.
2.1.6 Input Current Limiting
The input current should be less than 2A, under minimum AC input and full load.
2.1.7 Efficiency
Average efficiency no less than 87.8%.
2.1.8 Power Fowtor
/
2.2 Output Specification
2.2.1 DC Output Voltage Range
Table 5: DC output voltage limits
| Output | Min. | Typical | Max. | Unit |
|---|---|---|---|---|
| Vo | 11.4 | 12 | 12.6 | V |
2.2.2 DC Voltage Regulation
The DC output voltages will remain within the regulation ranges shown in Table 6 when measured at the load end of the output connectors. The voltage regulation limits do not include the transient DC load changes, which are covered in Section 3.2.5.
Table 6: DC Output Voltage Regulation Limits
| Output | Line Regulation | Load Regulation |
|---|---|---|
| Vo | ±5% | ±10% |
2.2.3 DC Output Current
Table 7: DC output current limits
| Output | Minimum load | Max load | Peak load | Unit |
|---|---|---|---|---|
| Io | 0.01 | 4 | / | A |
2.2.4 Output Ripple and Noise
The following table is output ripple and noise requirements, it will be met throughout the load ranges specified in Section 3.2.3 and under rate input voltage and rate input frequency conditions as specified Section 3.1.1, the oscilloscope will be set to 20MHz bandwidth limit on measuring. The output terminal will be paralleled with one 0.1uF multilayer (type X7R) and one 10uF tantalum electrolytic (low ESR) capacitor.
Table 8: Output Ripples and Noise Limits
| Output | Max. |
|---|---|
| Vo | 250mV |
2.2.5 Output Dynamic Load Response
The output voltages will remain within specified regulation limit of the nominal set voltage for changes in load as specified below under the following load steps defined below table 8. At a slew rate of 0.1Amps/uS between 50Hz to 10 KHz.
Table 9: Output Dynamic Load Response Limits
| Dynamic Load | Output Voltage Deviation Range |
|---|---|
| 10% - 100% - 10% | 10% |
| 10% - 50 - 10% | 10% |
| 50% - 100% - 50% 10% | 10% |
2.2.6 Overshoot at turn - on/turn - off
Any overshoot at turn on or turn off shall be less than 10% of rated output voltage.
2.3 Protection Function
2.3.1 Over Voltage Protection
The power supply will provide over voltage protection function.
2.3.2 Short Circuit Protection
An output short circuit is defined as any output impedance of less than 0.1 ohms. The power supply will protect without damage to components, connectors, etc. under the input conditions specified in Section 3.1 above.
2.3.3 Over Current Protection
The power supply has OCP function, and without any damage during test, the unit shall recovery its functions automatically after the protection is removed.
Table 10: Over Current Protection Limits
| Output | Min Rated Output | Max Rated Output | Unit |
|---|---|---|---|
| Io | 4.5 | 5.5 | A |
2.4 Timing
2.4.1 Start up Time
Start up time no more than 4 seconds at 115Vac/60Hz input, start up time no more than 3 seconds at 230Vac/50Hz input the output loading should be set up with full load during the test.
3. Environment Requirement
3.1 Temperature
Operating Ambient: 0℃ - 40℃
Non - operating Ambient: -20℃ - +70℃
3.2 Humidity
Operating: 25% - 80% relative humidity (Non - condensing)
Non - operating: 10% - 90% relative humidity (Non - condensing)
3.3 Altitude
Operating: 5000 meters
Non - operating: 5000 meters
4. Mechanical Dimensions
5. Applications
- Home smart camera
- Router adapter
- Wireless camera adapter
- LED light strip
- Optical cats, switches, LCD displays, radios, security systems, microprocessor systems, mobile devices, and more