Diodes Incorporated AL1788

Description

The AL1788 is a high performance high Power Factor Corrected (PFC) LED driver controller. It is a Primary Side controller designed for driving the Flyback converter. Based on Valley-ON Quasi-resonant mode, AL1788 is operating at Boundary Conduction Mode (BCM) which is good for EMI. It is universal Flyback solution with high PF and low THD.The AL1788EV1 is designed to serve as an example for High Power Factor AC-to-CV stage used in various consumer and commercial lighting applications.

Features

• Primary Side Control
• Universal AC voltage input for CV regulation
• Valley-on function to achieve low switching loss and high efficiency
• High Power Factor (PF>0.9) and Low Total Harmonic Distortion (THD<20%) in wide loading conditions
• Low Standby Power
• Internal Protections:
• Under Voltage Lockout (UVLO)
• Over Voltage Protection (OVP)
• Over Current Protection (OCP)
• Output Short Protection (OSP)
• Over-temperature protection (OTP): Thermal shutdown and auto thermal recovery
• Low system BOM cost

Typical applications

• General LED Lighting, Smart Connected LED Light Bulbs, Smart Connected LED Tubes, Panel Lights, Troffers and Ceiling Lights
• High PFC and low THD power supply