Outdoor LED Lighting Driver HT7L5821 Characteristics Integrated active PFC function Universal AC input range ( 85Vac ~ 265Vac ) Max output is 54V / 2.3A / 124W High efficiency − up to 90% No load power consumption < 0.5W High Power Factor & Low THD Protection functions ◆ ◆ ◆ ◆ Short Circuit Protection (SCP) Over Voltage Protection (OVP) Over Temperature Protection (OTP) Over Load Protection (OLP) Application Areas Block Diagram Application Circuit PFC Circuit QR Flyback Circuit AC 16 HVS 13 14 ZCD 6 OPFC 3 INV 4 CSPFC 1 SEL 8 OPWM CSPWM 5 VIN -+ HT7L5821 9 NC 15 VSS COMP 2 RT FB 12 11 DET 10 -+ VCC 7 Brown In/Out Detect Circuit CC/CV Feedback Circuit OTP Valley Detect and OVP