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