AL1698 Datasheet | Diodes Incorporated

Description The AL1698 is a high performance, high power factor, high efficiency, and high current precision buck-boost and flyback dimmable LED driver for triac dimmable LED lamp applications. The AL1698 topology provides an accurate output current over wide line and load regulation. The wide switching frequency operates at Boundary Conduction Mode (BCM) to ease EMI/EMC design and testing, to meet the latest regulatory standards. The AL1698 LED driver has a built-in high voltage JFET, which provides the system fast start-up time and enables users an easy and stable VCC supply design. The AL1698 also integrates a 600V/2A high voltage MOSFET. It can cover 230VAC triac dimmable applications with eliminating the external high voltage MOSFET and VCC startup resistors, which will reduce the system BOM cost. The AL1698 has the built-in thermal fold-back protection trigger point to automatically reduce output current. Other protection features enhance LED lighting system's safety and reliability. Pin Assignments (Top View) VCC 1 RT 2 P 3 GND 4 SO-7 Applications - Mains Dimmable LED Lamps - Offline LED Power Supply Driver 7D 6 CS 5 ROVP The AL1698 dimming curve is pliant with the NEMA SSL6 standard. The AL1698 applies to a wide range of dimmers, including leading edge and trailing edge dimmer, to achieve deep dimming down to 1%. The AL1698 is available in SO-7 package. Features - Tight Current Sense Tolerance : ±3% - Low Operation Current : 310µA - Single Winding Inductor - Wide Range of Dimmer patibility - Integration of 600V/2A MOSFET - Integration of HV JFET - NEMA SSL6 Dimming Curve pliant - Internal Protections - Under Voltage Lockout (UVLO) - Leading-Edge Blanking (LEB) - Cycle-By-Cycle Over Current Protection (OCP) - Output Open/Short Protection (OVP/OSP) - Thermal Foldback Protection (TFP) - Over Temperature Protection (OTP) - SO-7 Package - Totally Lead-Free & Fully Ro HS pliant (Notes 1 & 2) - Halogen and Antimony Free. “Green” Device (Note 3) Notes: 1. No...