Description
The AP1688 is a high performance AC/DC PFC and constant current controller for universal mains LED driver applications. The device is a buck controller which operates as a boundary conduction mode (BCM) to achieve high efficiency and easy EMI.

FEATUREs
• Optimized for Buck Topology
• Boundary Conduction Mode (BCM) Operation to Achieve High Efficiency
• High Power Factor > 0.9
• High Efficiency > 90%
• System Current Accuracy: ±5%
• Good Line Regulation and Load Regulation
• Low Start-up Current
• Tight CC Regulation Performance for Universal Input Mains Voltage Range
• Eliminates Control Loop Compensation Circuitry
• Easy EMI
• Open-load and Reload Detection
• Over Temperature Protection
• Over Current Protection
• Over Voltage and Short and Open Circuit Protection
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)

APPLICATIONs
• Universal Mains LED lighting