Power Supplies Manufacturers

built-in bare board power supply 5W open frame

The QLA05A product is with easy installation and can be used on the mainboard with terminals directly.

  • Model:

    QLA03A
  • Input Voltage:

    85-264V AC or 110-370V DC.
  • Working Mode:

    AC-DC
  • Size:

    3.9*3*2.1cm
  • Power:

    5W
Products description

Product features:

1.The product is with easy installation and can be used on the mainboard with inserting T-type needle directly.

2.Iternational Universal input voltage: 85-264V AC or 110-370V DC.

3.High efficiency, high power density, high accuracy of output voltage.

4.High isolation between input and output.

5.DC output main circuit/subcircuit with high isolation & withstand voltage greater than 1KV.

6.Overcurrent protection, short circuit protection and temperature protection.

7.Output built-in capacitive filter (no filter inductance in the secondary circuit) can be used without external filter circuit.
8.Threeyearsof quality assurance

 

Item

 

Condition

Common models of this series we have (we can customize any products with different output voltage and current or other requirements according to customer’s requirements)
QLA05A-0505QLA05A-0512QLA05A-0524
1 、Input Features
AC Input(VAC)85-264VAC
DC Input(VDC)110-370VDC
Frequency Range (Hz)47-63Hz
Input Current(A)0.5/ 115VAC   0.25/230VAC
Surge current(A)Cold Boot:10A/230VAC
Efficiency(TYP.)61%76%78%
Stand-by power consumptio(mW)≤ 1W/230VAC
2 、Output Features
Output Voltage(VDC)5V5V5V12V5V24V
Output voltage accuracyMain Circuit ±5%,Subcircuit ± 10%
Rated current(ADC)0.5A0.5A0.6A0.2A0.5A0. 1A
Rated power(W)5W5W5W
Ripple&Noise

(mvp-p)

Rated input

voltage, 20MHz

bandwidth

Main Circuit≤50mV,Subcircuit ≤

300mV

Main Circuit≤50mV,Subcircuit ≤

300mV

Main Circuit≤50mV,Subcircuit ≤

300mV

Linear adjustment rateFull-load± 1%
Load regulation10- 100% Load±3%
Start up and rise timeFull-load2000ms,30ms/ 115VAC    1000ms,30ms/230VAC
Retention

time(ms)

Full-load16ms/ 115VAC  50ms/230VAC
Overload

protection

Rated input voltage115%- 150% of the rated output power
Protection mode: hiccup mode, auto-response after removal of abnormal load
Short-circuit protection 

Rated input voltage

Automatic recovery after long-term short circuit
Over-current protection≥ 1. 1times Io
Start delay

time(ms)

 

Vin:230VAC

500ms
Power-off

protection

time(ms)

20ms
3 、General Features
Working      temperature(C)/-30-70
Workinghumidity

(RH)

/20-90%RH, non-condensing
temperature coefficient/±0.02%/C
Storage temperature and humidity-40~+85C 10-95%RH
Switching frequency(KHz)60KHz
Isolation    voltage(VAC)Input-to-output,  test lasted 60s ,≤

5mA

2000VAC
Insulation    resistance(MΩ)Input to output,

500VDC

100MΩ
Leakage   current(mA)500VDCInput to output    ≤ 1mA/RMS
MTBF@25C215000h
Safety level/Adaptation:CLASS B
Vibration

resistance

/10—500Hz 2G 10 minutes/cycle. 60 minutes each for X, Y and Z.
Electro-magnetic compatibility/Adaptation:EN55022(CISPR22) Class B  EN61000-3-2-3
 

 

Remarks

1. Except for special instructions, the parameters of this specification are measured at 230VAC input, rated load and 25C.

2.Measurement of ripple and noise: Using a  12” twisted pair, and the terminal has two capacitors, 0. 1uF and 10uF in parallel. Measured at 20MHz bandwidth.

3.Accuracy: Including errors, linear adjustment rate and load adjustment rate.

4. The power supply should be regarded as part of the components in the system, and electro-magnetic compatibility related confirmation should be carried out with the terminal equipment.

5. Reduced output is required under low input voltage. Please refer to the reduction graph.

Output Parts:

Output VoltageC1/(Subcircuit C3)C2/(Subcircuit C4)TVS
Master Control 5V/5V47uF/ 10V   220uF/ 16V 

 

1uF/50V

SMBJ7.0A
SMBJ7.0A
Master Control5V/ 12V47uF/ 10V  100uF/25VSMBJ7.0A
SMBJ15A
Master Control5V/24V47uF/ 10V  47uF/35VSMBJ7.0A
SMBJ27A

Remarks:

  • C1:Connecting/couplingfilter electrolytic capacitors. High frequency and low resistance capacitors are recommended. Capacitance withstand voltage drop more than 75% which remove noise caused by connectors.
  • C3: Aboutoutput filter electrolytic capacitor, it is recommended to use high frequency low resistance capacitor. Capacity and current flow refer to the technical specifications provided by manufacturers. And capacitor withstand voltage drop is more than 75%.
  • C2 ,C4:Removinghigh frequency noise for Ceramic capacitors.
  • TVS:Itis recommended to protect the back-stage circuit when the power supply is abnormal.
  • C1 ,C2 ,C3 ,C4:Products do not require ripple output of power supply which couldn’t be used.

Input parts:

Original Bit Number/Recommended DeviceEffectsRecommended Value
FUSEWhen the power supply is abnormal, the protection circuit is protected from

damage.

(Built-in board) 1A/250VAC, Slow fuse
NTC:ThermistorInhibition of surge current, protection module is not damaged.5D-7
ZOV:VaristorProtection module is not damaged in lightning surge.(Built-in board) 07D471K
C5 : X2Capacitance 

Suppression of differential mode interference.

0.22uF/275VAC
R1:Discharge resistance1MΩ 1/2W
NF:common mode chokeCommon mode interference is suppressed to improve the anti-interference ability of equipment and the reliability of the system.10 mH -30 mH

Product Packaging and Pin Definition Diagram

Product selection and Notes:

1.Please refer to the specifications in detail for selection and use, otherwise the reliability of power supply will not be guaranteed.

2.All parameters of this specification  are measured according to the internal standards of our company.

3.It is suggested that the load power of the power supply should not exceed 80% of the rated power of the power supply.

4.With multi-output power supply, each output circuit must be loaded  and used at the same time according to the corresponding ratio.

5.Our company can provide customized products.

6.We reserve the right to change specifications without prior notice. 7.For more product information,please contact us or log on our website.

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