12V1A

1. Introduction

1.1 Power Supply Overview

This adapter has the feature of 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 12W ≥83 ≥30K Hours
Output Regulation Min. Current Typ. Current
12V ±5% (full load) 0A 1.0A

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
67V 78V 294V 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 0.5A, under minimum AC input and full load.

2.1.7 Efficiency

Average efficiency no less than 83%.

2.1.8 Power Fowtor

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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 Max load Unit
Io 0.01 1.0 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
V0 1.3 1.8 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

12V1A

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
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