Diodes Triac dimmable LED driver completes dimmer compatibility for 230/120VAC lamps
Diodes Incorporated introduces the LED driver AL1697 for line-powered Triac dimmable LED lighting applications. The new product utilizes a single-stage high power factor dimming circuit that meets the National Electrical Manufacturers Association (NEMA) SSL-6 dimming curve standard, with leading edge-edge and trailing-edge Triac dimmers. Compatible with each other to provide optimal linearity and load regulation. The AL1697 integrates MOSFETs to eliminate auxiliary windings, reducing peripheral material costs and reducing printed circuit board area, enabling LED lamps up to 15W to be an attractive and competitive solution.
The AL1697 is a high precision and high efficiency buck-boost LED driver with a topological structure that delivers precise output current for excellent linearity and load regulation. The device design supports non-isolated buck-boost operation to meet the different requirements of the various luminaires for isolated drive power. The AL1697 uses a critical conduction mode that improves conversion efficiency, reduces switching noise, and simplifies EMI design. It has a low startup current of 130μA and a low operating current of 170μA.
The AL1697 offers two MOSFET options, including a 4Ω drain-to-source on-resistance specification for up to 2A/600V operation and a 1.8Ω super-juncTIon on-resistance specification for 4A/650V operation. The device is equipped with standard internal protection features including output short-circuit, over temperature, undervoltage lockout, leading edge blanking and cycle-by-cycle overcurrent protection. For added safety and reliability, it also provides overvoltage/output open circuit and thermal foldback protection.
The AL1697-20CS7-13 (2A/600V) and AL1697-40DS7-13 (4A/650V) MOSFETs are available in small SO-7 packages and shipped in quantities of up to 10,000.
Introduction to Diodes
Diodes Incorporated, a S&P SmallCap 600 Index and Russell 3000 Index, is the world's leading manufacturer and supplier of discrete, logic, analog and mixed-signal semiconductor products for consumer use. Different markets such as electronics, computers, communications, industry and automobiles. Diodes' products include diodes, rectifiers, transistors, MOSFETs, protection devices, special function arrays, single-gate logic, amplifiers and comparators, Hall effect and temperature sensors, covering LED drivers, AC-DC converters and controllers, DC- Power management devices such as DC switches and linear regulators, voltage references, and special features such as USB power switches, load switches, voltage monitors, and motor controllers.
Diodes' headquarters and US sales offices are located in Plano, Texas, USA and Milpitas, California, in Plano, Milpitas, California, Taipei, Taoyuan, Zhubei, and Mann. Chester and Neuhaus in Germany have design, marketing and engineering centers; wafer fabrication facilities in Kansas City and Manchester, Missouri, and one in Shanghai; in Shanghai, Jinan, Chengdu, Yangzhou , assembly and test facilities in Taipei, Hong Kong and Neuhaus, Germany; engineering, sales, warehousing and logistics offices in Taipei, Hong Kong, Shanghai, Shenzhen, South Korea, Manchester, and Munich; Sales and support offices are located around the world.
On November 24, 2015, Diodes acquired Pericom Semiconductor, a global design, sales and support office based in Milpitas, California. With the industry's most complete solution, Polycom provides access technology for computing, communications, consumer and embedded market segments. Polycom's analog, digital and mixed-signal integrated circuits, as well as frequency control products, provide the necessary time-frequency, switching, bridging and high-speed signal conditioning technologies for today's ever-increasing demands for speed and bandwidth.
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