Transcription of AN-1937 LM3433 10A to 40A LED Driver Evaluation Board …
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AN-1937 LM3433 10A to 40A LED Driver Evaluation Board …
User's GuideSNVA386D March2009 RevisedMay2013AN-1937LM343310 Ato40 ALEDD riverEvaluationBoard1 IntroductionTheLM3433is anadaptiveconstanton-timeDC/DCbuckconsta ntcurrentcontrollerdesignedtodriveahighb rightnessLED(HBLED) is a truecurrentsourcethatprovidesa designedtoprovidea constantcurrentin therangeof10 Ato60A(althoughtheboardis thermallylimitedtoapproximately40 Acontinuousoperation)andcanconnectdirect lytoaLuminusDevices, is positivevoltagewithrespecttoGNDis requiredforthebiasandcontrolcircuitryand anegativevoltagewithrespecttoGNDis (anyhighcurrent12 Vsupplywillwork).
User's Guide SNVA386D– March 2009– Revised May 2013 AN-1937LM3433 10A to 40A LED Driver Evaluation Board 1 Introduction The LM3433 is an adaptive constant on-timeDC/DC buck constant current controller designed to drive a
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