AL1698K Datasheet | Diodes Incorporated

Description The DIODES™ AL1698K is a high efficiency, high performance, high power factor, and high current precision boost, buck-boost, and flyback dimmable LED driver for triac dimmable LED lamp applications. The AL1698K provides an accurate output current over wide line and load regulation. The AL1698K can achieve higher than 90% efficiency by using a boost topology to meet the latest lighting regulatory high efficiency requirements. The wide switching frequency operates at Boundary Conduction Mode (BCM) to ease EMI/EMC design and testing. The AL1698K LED driver has a built-in high voltage JFET, which provides the system with fast start-up time and enables users an easy and stable VCC supply design. The AL1698K LED driver integrates a 600V/2A high voltage MOSFET. It can cover both 120VAC and 230VAC triac dimmable applications with eliminating the external high voltage MOSFET, which will reduce the system BOM cost. The AL1698K 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. The AL1698K dimming curve is pliant with the NEMA SSL6 standard. The AL1698K applies to a wide range of dimmers, including leading edge and trailing edge dimmer, to achieve deep dimming down to 1%. Pin Assignments (Top View) HV 1 VCC 2 P 3 GND 4 SO-7 Applications - Mains dimmable LED lamps - Offline LED power supply drivers The AL1698K is available in SO-7 package. Features - High Efficiency > 90% (Boost Topology) - 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) - Over Voltage Protection (OVP) - Output Short Protection (OSP) - Thermal Foldback...