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S5542SP is a CcT controller integrated with non-isolated constant current control driver The chip worksin inductor current critical conduction mode and issuitable for non-isolated buck constant current and CCTapplications with 85~264Vac input.
Advantage

    Buck Regulator

    No vcc capacitor, no startup resistor

    Integrates 500V MOSFET

    No OVP function,frequency up to 200kHz

    士3% constant current accuracy

    Over temperature protection

    LED short protection

    Power supply undervoltage protection

    CCT Control

    CCT state sequence: L1-L2-(L1+L2)/2

    No vcc resistor required (Vcc_max=67V)

    Integrates two 40V MOS for CCT switching

    Internaltimingfor state holding time (Typ 12S)

    The minimum state switching time within 0.2S

Application area
  • Downlight and Bulb with CCT function
Schematic diagram
Package
Technical documents
Document type Title Type Download
Specification sheet S5542SP pdf Full version