AP1688 Overview
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 that operates as a boundary conduction mode (BCM) to achieve high efficiency and easy EMI. An open loop algorithm is adopted in the AP1688, which makes the system achieve excellent line and load regulations with high PF for universal mains input.
AP1688 Key Features
- Optimized for Buck Topology
- Boundary Conduction Mode (BCM) Operation to Achieve High
- 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
- Eliminates Control Loop pensation Circuitry
- Easy EMI