AC input voltage range

Vac

90

110/220

264

Safety certification voltage

Vac  

100

/

240

AC input voltage frequency

Hz

47

50/60

63

Input Current

A

/

0.4

0.5

110 Vac input, full load；

Inrush current

/

/

/

/

The surge current should be less than the specifications of key components (such as rectifier bridges, fuses, etc.). Repeated switching of the power supply will not cause damage to the power supply or blown fuse.

AC input system

/

/

Single-phase input

/

Input overcurrent protection

/

/

/

/

The AC input lines (L, N) have fuses to meet the requirements of dual live wires

Input under-protection

V

/

65

80

The AC input is lower than the protection point voltage and no output, it can work normally after returning to the normal grid.

Output Power

W

/

21.6

/

90Vac～264Vac

Output voltage range

+12V

Vdc

11.4

12.0  

12.6

Output current range

+12V

A

0

/

1.8

Full load output efficiency

%    

83

/

/

115/230Vac input, rated load current (heat engine for more than half an hour when testing efficiency)

Load loss

W

/

0.2

0.3

Stabilization accuracy

+12V

%

/

/

±5

Full voltage input range, full load output

Linear adjustment rate

%

/

/

±2

Rated 10%~100% load output, full voltage range change

Load Adjustment rate

%

/

/

±3

Rated voltage input, 10%~100% load change

Noise + ripple

(Peak-to-peak value)

+12V

mV

/

/

120

(240)

It is carried out in the range of 90~264V input voltage and load, and the output terminal is tested with a 0.1µF ceramic or gold film capacitor and a 10µF electrolytic capacitor. The bandwidth of the oscilloscope is 20MHz;

1. Under normal temperature and high temperature: 120mV,

2. Under -33℃~-10℃ ambient temperature: 240mV

Dynamic response overshoot

%

/

/

±5

25%~50%~25% or 50%~75%~50% load change, current change rate 0.1A/µS, cycle 4mS；

Switch overshoot

%

/

/

±5

Power on time

S

/

/

3

T1≤3S, see Figure 1

Output rise time

mS

/

/

200

The output voltage rises from 10% to 90%,

T2≤200 mS

Power-down sustaining time

mS  

10

/

/

T3≥10mS

Capacitive load

+12V

µF

/

/

2000

Full input voltage, full load range test

Output overvoltage

Protection point

+12V

Vdc

13.5

  /

16

Output overcurrent

Protection point

+12V

A

2.2

2.7

3.5

The power supply is in hiccup protection

Output short circuit protection

/

/

/

/

When the output terminal of the power supply is short-circuited to ground, the power supply can be automatically protected; after the short-circuit is removed, the power supply can be automatically restored.

Operating temperature

℃

-33

25

45

-40℃ storage 48 hours power can be started

Storage temperature

℃

-40

25

85

Working humidity

%

5

/

95

No condensation

Altitude

m

0

0

5000

High temperature derating under 3000～5000m operating environment conditions, the maximum working stability is reduced by 1℃ for every increase of 200m

Storage environment height

m

0

0

15250

Conducted interference(CE)

Level B  

CISPR 22

Radiation interference(RE)

Level B  

CISPR 22

AC port(CS)

0.15～80MHz：10V【80%AM(1kHz)】；（Criterion A）  

IEC61000-4-6

Radiation immunity(RS）

80～1000MHz：10V/m【80%AM(1kHz)】；

1400～2700MHz：10V/m【80%AM(1kHz) 】 （Criterion A）

IEC61000-4-3

Whole machine port ESD

Contact discharge: 8kV (level B); air discharge: 15kV (level B)

IEC61000-4-2

AC port EFT/B

Index: 2kV (criterion B)

IEC61000-4-4

AC port DIP

Drop to 0%, time 10ms; 0%, time 20ms; drop to 70%, time 500ms; drop to 0%, time 5000ms; (criterion B/B/B/C);

IEC61000-4-11

AC current harmonics

Rated voltage class A

IEC61000-3-2

AC voltage fluctuations,

Flashing

Pst value is not greater than 1;

Plt value is not greater than 0.65;

The relative voltage change dc does not exceed 3.3%;

The maximum relative voltage change dmax does not exceed 4%;

During the voltage change, the time when the d(t) value exceeds 3.3% is not more than 500ms.

IEC61000-3-3

Surge

Differential mode 6kV, 2 ohms; common mode 6kV; 2 ohms, 1.2/50 (8/20) us mixed wave; criterion ITU-B

ITU-T K.44

Input to output

3000Vac  

Lasts for 1 minute, no breakdown, no flashover phenomenon, leakage current <10mA (output is not grounded)

Input to ground

1500Vac   

Lasts for 1 minute, no breakdown, no flashover phenomenon, leakage current <10mA, remove GDT

Insulation resistance

10MΩ

Under normal temperature and pressure, the relative humidity is 90℅, and the test voltage is DC 500V, the insulation resistance of the AC part and DC part of the main circuit of the rectifier to the ground, and the insulation resistance of the AC part to the DC part are not less than 10MΩ.

Leakage current   

Class I:≦3.5mA

Input 264VAC/50Hz.

1

HALT low temperature step stress test

The temperature of the sample starts from -10°C, and the temperature is reduced in steps of 10°C. The temperature point reached after stepping is called the temperature step; first, the test sample is powered off, the test box begins to cool down, and after reaching the set temperature of the test box, it stays For more than 20 minutes, ensure that the inside of the chip is completely cold; power on the test sample, monitor the performance of the sample, and judge whether the startup is successful according to the performance index, and each temperature point should conduct a low-temperature startup test. The input voltage requirement for low temperature start is the highest and lowest input voltage, and the load is the maximum rated load. The residence time of each temperature step should be long enough (15-20 minutes after the product temperature reaches the temperature set point), so that the temperature of each device of the product is stable; at the same time, the predetermined test items (regulation accuracy, short-circuit function) should be completed , Switch machine test, communication function), and record data. During the temperature change process and after the functional test of each temperature step is completed, power-on and power-off must be performed at least 3 times. The input voltage of power-on and power-off is required to be the highest and lowest input voltage, and the load is the maximum output load. If the product fails and the temperature rises to the previous temperature step, it is judged whether the fault is the operating limit or the destruction limit; if it is determined to be the operating limit, the specific operating limit is precisely defined by using 5°C as the step length.

Failures that occur within -33°C must be modified, and root causes must be analyzed for failures within [-33°C to -50°C]

2

HALT high temperature step stress test

The sample starts at 60°C, and the temperature rises step by step, and the step length is 10°C; the residence time of each temperature step should be long enough (15-20 minutes after the product temperature reaches the temperature set point), so that the temperature of each device of the product Stabilize; At the same time, it is guaranteed to complete the predetermined test items (regulation accuracy, short circuit function, switch machine test, communication function), and record the data. During the temperature change process and after the functional test of each temperature step is completed, power-on and power-off must be performed at least 3 times. The input voltage of power-on and power-off is required to be the highest and lowest input voltage, and the load is the maximum output load. If the product fails and the temperature drops to the previous temperature step, it is judged whether the failure is the operating limit or the destruction limit. If it is determined as the operating limit, use 5℃ as the step length to accurately define the specific operating limit

Failures that occur within 110°C must be corrected, and root causes must be analyzed for failures within [110°C to 130°C]

3

HALT vibration step stress test

The initial vibration of the random vibration step test is 10 Grms, and the step length is 10 Grms. After it is greater than 30 Grms, the step length is adjusted to 5 Grms. Each vibration step stays for 15 minutes to ensure the completion of the predetermined test items (regulation accuracy, short circuit function, switch test, communication function), and record the data

Failures that occur within 30Grms of vibration must be corrected, and failures that occur outside of 30Grms must be analyzed for the root cause

4

HALT comprehensive stress test

Vibration limit value: the vibration operating limit found in the random vibration stepping test *90%;

High and low temperature range: [High and low temperature cycle low temperature point] = (Low temperature operation limit -25°C) × 80% + 25°C; [High and low temperature cycle high temperature point] = (High temperature operation limit -25°C) × 80% + 25°C ；

The test sample must fail. If two complete comprehensive stress test cycles are carried out and the test sample still has no failure, the test can be stopped.

1

High temperature and humidity

Hot storage

The test box stays at 40°C (humidity between 90% and 95%) for 96h;

After the test, the material is not deformed, and the module should not be damaged or have abnormal performance (you can only check the default output voltage, voltage regulation accuracy, output ripple, and dynamic response).

2

Low temperature storage

test

Store at -40℃ for 24 hours;

After the test, the material is not deformed, and the module should not be damaged or have abnormal performance (you can only check the default output voltage, voltage regulation accuracy, output ripple, and dynamic response)

3

High temperature shock

Test (save

Storage)

From 23°C to 70°C (humidity arbitrary), the rate of change is 30°C/h; stay at 70°C for 72h (humidity arbitrary); 70°C drops to 23°C (humidity arbitrary), and from 70°C to 23°C within 5 minutes;

After the test, the material is not deformed, and the module should not be damaged or have abnormal performance (you can only check the default output voltage, voltage regulation accuracy, output ripple, and dynamic response).

4

Low temperature impact test (storage

Storage)

Decrease from 23℃ to -40℃ (humidity arbitrary), the rate of change is 30℃/h; stay at -40℃ for 72h (humidity arbitrary)

-40℃ to 23℃ (humidity arbitrary), from -40℃ to 23℃ within 5min;

After the test, the material is not deformed, and the module should not be damaged or have abnormal performance (you can only check the default output voltage, voltage regulation accuracy, output ripple, and dynamic response)

5

High and low temperature cycle

Ring (storage)

85°C down to -40°C (humidity arbitrary), the rate of change is 60°C/h; storage for 24 hours;

After the test, the material is not deformed, and the module should not be damaged or have abnormal performance (you can only check the default output voltage, voltage regulation accuracy, output ripple, and dynamic response)

6

High temperature work

test

AC input 90V, rated load, ambient temperature 65℃, 12H;

AC input 264V, rated load, ambient temperature 65℃, 12H;

After the test, there is no deformation of the material, and the module should not be damaged or have abnormal performance.

7

Low temperature work

test

AC input 90V, rated load, ambient temperature -35℃, 12H;

AC input 264V, rated load, ambient temperature -35℃, 12H;

After the test, there is no deformation of the material, and the module should not be damaged or have abnormal performance.

8

Alternating damp heat

Test

Made)

25℃～40℃(indoor)/25℃～55℃(outdoor), 95%RH, after 48h test, it should not be damaged

After the test, the material is not deformed, and the module should not be damaged or have abnormal performance (you can only check the default output voltage, voltage regulation accuracy, output ripple, and dynamic response)

9

High and low temperature cycle

Ring test

(jobs)

fulfill the standard

GB/T 2423.22-200

After the test, the material is not deformed, and the module should not be damaged or have abnormal performance (you can only check the default output voltage, voltage regulation accuracy, output ripple, and dynamic response).

10

High temperature aging

High temperature current limiting operation for 24 hours

Electromagnetic devices, especially transformers/inductors, should not have scorching or abnormal colors, capacitors should not have violent valves, bulging, etc., and power supply performance should not deteriorate

11

Vibration test

The frequency is 10～55Hz, the acceleration is 50m/s2, and the X, Y, and Z directions are in turn for 30min vibration

The module should be free from mechanical damage, disconnection, component falling off, etc., and all indicators should be normal.

1

Output current limit

Run 2Hrs under the condition before current limit protection

The prototype is not damaged, and it should be able to automatically resume normal operation after troubleshooting

2

Input current limit

Run 2Hrs before current limit protection and undervoltage protection

The prototype is not damaged, and it should be able to automatically resume normal operation after troubleshooting

3

Input voltage jump, and output dynamic load test

Adjust the input voltage to jump between the lower limit of the input voltage (duration is 1S) and the upper limit of the input voltage (duration is 1S), and the output is adjusted between the maximum load (duration of 1mS) and no load (duration of 1mS) Inter-jumping, the rate of change is defined by specifications, and it runs for 2 hours. Observe the output voltage of the power supply.

The power supply can run stably without damage or other abnormal phenomena, and the output voltage is within the specifications

4

Long-term short circuit test

Short-circuit for 2 hours, short-circuit with wire, test time is 2Hrs

The power supply is not damaged, the module should be able to protect; after troubleshooting, it should be able to automatically resume normal operation

5

Input switch machine repeatedly

Switch the power supply repeatedly at the upper and lower limits of the input voltage and full load conditions, turn on for 3 seconds, turn off for 1 second, and switch 1000 times  

The machine can be switched on and off normally without abnormal conditions

6

Static high voltage input

Input 264V, output full load, continuous operation for 48 hours

The power supply can run stably without abnormal conditions

7

High voltage input test

Steady-state high voltage, start the test from 264Vac, Step is 10V, and the duration of each step is 30min, until the power module fails, record the voltage at this time

Record the voltage when the power fails

8

AC special waveform test

AC input special waveform superposition test

The power supply can run stably without abnormal conditions

9

Input undervoltage point cycle test

AC undervoltage point, DC no-load to overcurrent point cyclically running 2Hrs

The prototype is not damaged, and it should be able to automatically resume normal operation after troubleshooting

Random vibration

Fixed frequency test conditions: vibration amplitude: 4.5mm, vibration frequency: 35HZ, vibration time 30 minutes.

Sweep frequency test conditions: Vibration frequency: 10-50HZ, vibration time 30 minutes.

There should be no mechanical damage, disconnection, falling off of components, etc. in the test of the fixed housing of the module, and all indicators should be normal.

fall

Surface, corner, edge drop:

Drop height: 100cm

Drop 1 corner, 3 edges and 6 faces each once

The packaged module should be free of mechanical damage, wire breakage, or parts falling off, etc., and all indicators should be normal.