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 4.5W CC/CV Charger Module Using OB2211H

  

        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)

140mA Max

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

0.257W

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

68.53%

2 .Output Characteristic

Line regulation

2%

Load regulation

20%

Ripple & noise

100mV Max

Over shoot

5% Max

Under shoot

Dynamic test ±312mV
3. Time sequence (100Vac with Full load)
Turn on delay time 1.54S
Hold up time 10.96mS
Rise time 17.76mS
Fall time 4.56mS

                                        

                

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