AP1680中文资料off-line-led-drivers数据手册Diodes规格书

描述 Description

The AP1680 is a high performance AC/DC power supply controller for LED drivers, battery charger and adapter applications. The device uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies. The AP1680 provides accurate constant voltage, constant current (CV/CC) regulation while removing the opto-coupler and secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. The AP1680 achieves excellent regulation and high average efficiency, yet meets the requirement for no-load consumption less than 30mW.

特性 Features

Primary Side Control for Rectangular Constant Current and Constant Voltage Output
Sub-microampere Start-up Current
30mW No-load Input Power Feasible
Tight CC Regulation Performance
Eliminates Opto-coupler and Secondary CV/CC Control Circuitry
Eliminates Control Loop Compensation Circuitry
Flyback Topology in DCM Operation
Random Frequency Modulation to Reduce System EMI
Built-in Soft Start
Open Feedback Protection
Short Circuit Protection
SOT-23-6 Package

应用 Application

LED Drivers
Adapters/Chargers for Cell/Cordless Phones, PDAs, MP3 and Other Portable Apparatus
Standby and Auxiliary Power Supplies