Product name: Switching power adapter
Model: TPA273
Appearance color: black
Pin type: wall-mounted vertical, European standard
Output power: 24W
Input voltage: 90-264V
Input frequency: 47 ~ 63Hz
Output voltage: 12V
Output voltage accuracy: ±5%
Output current: 2A
Mean time between failures: at least 100,000 hours
Protection: over-current, over-voltage and over-temperature
Efficiency: ≥86.2%
Inrush current: cold start 60A/220VAC
Working temperature: -10 ~ +45°C
Safety certification: CB CE EAC ERP STB EE
Warranty period: 2 years
Product pictures: 6 pictures taken from different angles of each product
Application areas: audio and video and IT equipment
General:
This specification defines the performance, structure, environment, safety regulations and other requirements of a 24W, single output, IT switching power supply.
The specification detail the electrical, mechanical, environmental and safety specifications of a 24 W, SINGLE Output level switching power supply for IT.
1. Input characteristics
Table 1 Input characteristics
Num | Item | Unit | Min value | Typical value | Max value | Remarks |
1.1 | Range of rated input voltage | Vac | 100 | 230 | 240 | |
1.2 | Range of maximum input voltage | Vac | 90 | / | 270 | |
1.3 | Frequency of rated input voltage | Hz | 47 | 50/60 | 63 | |
1.4 | Current of rated input voltage | A | / | / | 0.8 | |
1.5 | Inrush current | A | / | / | 60 | cold start@25℃ |
1.6 | No-Load Input Power Dissipation | W | / | / | 0.075 | 115/230Vac |
1.7 | Powe Factor | / | / | / | / |
2. Output characteristics
Table 2 Output characteristics
Num | Item | 单位 Unit | Min value | Typical value | Max value | Remarks |
2.1 | Output voltage | V | 11.4 | 12 | 12.6 | |
2.2 | Rated output current | A | 2.0 | / | / | |
2.3 | Constant/Over current | A | / | / | / | |
2.4 | /Ripple & Noise | mV | / | / | 120mV | Note1 |
2.5 | Average efficiency | % | 86.2 | / | / | ErP6 |
2.6 | Light-Load Input Power Dissipation | W | / | / | / | / |
2.7 | Output load transient response | % | / | / | ±5% | 25%~50%~25%或50%~75%~50%Load change, current change rate 0.1A/us, cycle 4ms |
2.8 | Output overshoot/ undershoot | % | / | / | ±5 | |
2.9 | Rise time | mS | / | / | 200 | Note2 |
2.10 | Power on delay time | S | / | / | 3 | |
2.11 | Capacitance Load | uF | / | / | 2500 |
Note1:
The ripple is obtained by measuring the peak-to-peak value using an oscilloscope with a bandwidth of 20MHz. When the DC output is fully loaded, AC rated input, and an ambient temperature of 25℃, the output terminal is connected in parallel with a 10uF electrolytic capacitor and a 0.1uF ceramic capacitor.
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
Note2:
The output voltage rises from 10% to 90%, rated load.
Output voltage is increased from 10% to 90%, rated load.
3. Protective function
Table 3 Protection function
Num | Item | Unit | Yes/No | Minimum value | Typical value | Maximum value | Recover characteristic |
3.1 | Short circuit protection | A | Yes | / | / | / | Don't damage |
3.2 | Over current protection | A | Yes | 2.4 | / | 4.0 | Don't damage |
3.3 | Over voltage protection | V | Yes | 13.5 | / | 16 | Hiccup protection, no damage; |
4. Environmental standards
Table 4 Environmental standards
Num | Item | Unit | Minimum value | Typical value | Maximum value | Remarks |
4.1 | Operating temperature | ℃ | －10 | 25 | 45 | |
4.2 | Storage temperature | ℃ | -40 | 25 | 70 | |
4.3 | Relative humidity | % | 5 | / | 95 | No condensation |
4.4 | Altitude | M | / | / | 5,000 | working |
5. Reliability standards
Table 5 Reliability standards
Num | Item | specification | Remarks |
5.1 | Lifetime | 3 years, 30℃ ambient temperature; rated voltage input (110Vac/220Vac) | Full load output |
5 years, 30℃ ambient temperature, rated voltage input, (110Vac/220Vac) | 80% output load | ||
5.2 | MTBF | 60000 hours at 25℃, rated input, rated output load; Reference standard: Telcordia SR332 | |
5.3 | Vibration | 5-9Hz, 3.5mm; 9-200Hz: 1g; 3 axes, 5 sweeps per axis. | |
5.4 | Drop | Drop to the cement surface, height 1m, 1 corner, 3 edges, 6 sides, each drop once | |
5.5 | Corrosion of gas | After the fog test, the exposed metal and electroplated parts have no corrosion after the salt spray test Corrosion and rust, etc. occur | Metal AC PIN needs to be done |
6. Safety testing and safety certification
Table 6.1 Safety test items
Num | Item | Rating | Standards（or test condition） |
6.1 | Hi-pot | 3000Vac | primary to secondary,5mA/60S |
6.2 | Insulation Resistance | ≥100M | 500VDC |
6.3 | Leakage Current | ≤0.25mA | 270VAC/60Hz |
Table 6.2 Safety design and certificatio | |||
Region or country shall apply | Safety standards | Designed to meet | Certified |
European Union | EN62368-1 IEC62368-1 | Yes | Yes |
CB+CE+EAC+ErP6 | Yes | Yes | |
7. EMC standards
Table 7 EMC standards
Num | Item | Rating | Standards |
Power | |||
7.1 | conducted interference | AC port: Class B. The monomer in the batch stage meets the margin of 4dB or more; the grounding and non-grounding tests must be met. | EN55032: 2015 |
7.2 | radiated interference | AC port: Class B. The monomer at the batch stage meets a margin of 4dB or more; both grounded and ungrounded tests must | EN55032: 2015 |
7.3 | SURGE | AC port: Differential mode: ±4kV, impedance 2ohm, common mode: ±6kV, impedance 2ohm, waveform 1.2/50us, criterion B; | ITU-T K.21 IEC61000-4-5 |
7.4 | EFT | AC port: EFT criterion B; ±2KV | IEC61000-4-4 |
7.5 | ESD | Class B Contact discharge：±8kV Air discharge±15kV | IEC61000-4-2 |
7.6 | DIP | AC port DIP requirements: Drop to 0, duration 10ms, drop at each phase of 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°, meeting criterion B; Drop to 70% UT, duration 500ms, and all phases at 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315° meet criterion C; Drop to 0%UT, duration 5000ms, all phases of 0°, 45°, 90°, 135°, 180°, 225°, 270°, 315° meet criterion C; Remarks: Input voltage 114Vac and 240Vac | IEC61000-4-11 |
7.7 | CS | AC port CS LEVEL 3; criterion A; 10V | IEC61000-4-6 |
7.8 | RS | Level 3; Criterion A; 10V/m field strength | IEC61000-4-3 |
7.9 | Voltage fluctuation and flicker | AC port: Voltage fluctuation and flicker Limits of voltage fluctuation and flicker of Class A products | IEC61000-3-3 |
7.10 | Current harmonics | AC port: current harmonic emission limit of harmonic current of Class A products | IEC61000-3-2 |
The whole machine with EMC performance criterion:
Criterion A: Normal performance within the scope of technical requirements;
Class A: technical requirements within the scope of normal;
Criterion B: Some functions can be temporarily deteriorated or lost, and can be self-recovered; the product or the power supply cannot restart;
Class B: Part can temporarily degradation or loss of function, can the recovery; Product unit or power cannot be restarted;
Criterion C: Automatic reset with short-term functional interruption is allowed, and long-term functional interruption or manual reset is not allowed;
Class C: Allow a dropped short function of automatic reset, do not allow a dropped the function of the long time or need to be manually reset;
8. special requirements
Table 8 Special requirements
No. | Define | Parameter | Remarks |
8.1 | Y Capacitor | NO Y |
9. Mechanical Structural Requirement
9.1 Appearance drawing: Attachment
9.2 Label drawing: Attachment
9.3 Output wire drawing: Attachment
10. Package Requirement
11. Safety Certificate/ Annex/
12. Schematic/SCH: Accessories/
13. PCB diagram/PCB layout: Attachment
14. Bill of Materials/BOM: Attachment
15. Power Picture/: Accessories
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