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4.5W Adaptor Module Using OB2211

                                

        Key Features
  • Primary-side sensing and regulation without TL431 and  op to-coupler

  • Cost effective and simplified system design

  • Standby power less than 300mW

  • Full load efficiency greater than 70%

  • No X & Y design

  • Audio noised free operation

  • Auto-restart in short circuit

  • Meet EN55022 EMI

     

 

                                 

   

            Characterization Results Summary

Items

Test Resuls 

1. Input Characteristic

Input current (90V/60Hz,full load)

120mA Max

Standby power at no load (264Vac,With dummy resistor)

0.218W

Average Efficiency(264Vac,25%/50%/75%/100%)

69.2%

2 .Output Characteristic

Line regulation

2%

Load regulation

20%

Ripple & noise

100mV Max

Over shoot

5% Max

Under shoot

Dynamic test +/-297mV
3. Time sequence (100Vac with Full load)
Turn on delay time 1.64S
Hold up time 12.47mS
Rise time 18.95mS

Fall time

7.6mS

 

                                        

                

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