Diodes Cost-Effective Dimmable LED Driver Improves Triac Dimmer Compatibility

Diodes Incorporated's new LED driver AL1696 is suitable for a wide range of Triac dimmable lighting applications, especially retrofit lamps. The new product integrates MOSFETs, eliminating the need for auxiliary windings, reducing peripheral material costs and component count. The AL1696 is available in three MOSFET voltage/current rating models, giving design flexibility to meet the requirements of home lighting production.

The AL1696 can be used in buck or buck-boost topology, with a critical conduction mode for constant current conversion and high power factor. It also reduces switching noise, which simplifies the EMI/EMC test and certification process. This design requires only a single-winding inductor to achieve ±3% current sensing accuracy. With a low operating current of 120μA and a startup current of 150μA, the device is compatible with a variety of Leading-edge and Trailing-edge dimmers, and is compliant with the American Electrical Manufacturers Association (NEMA) SSL6. Dimming curve standard.

The AL1696 offers three MOSFET options, 3A/300V, 2A/500V and 2A/600V, which meet the line input voltage requirements of the end market and are suitable for LED lamps up to 12W. It is available in a small SO-7 package that utilizes additional pin space between the high voltage MOSFET drain and low voltage pins to improve electrical isolation. The device is also equipped with output short circuit, over temperature, under voltage lockout, leading edge blanking and cycle-by-cycle overcurrent protection.

The new products offer AL1696-30AS7-13 (3A/300V), AL1696-20BS7-13 (2A/500V) and AL1696-20CS7-13 (2A/600V) three MOSFETs, each with 10,000 shipments. .

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 and analog semiconductor products for consumer electronics and computers. , different markets such as 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, with designs and markets in Plano, San Jose, California, Taipei, Manchester, UK, and Neuhaus, Germany. And engineering center; wafer fabrication facilities in Kansas City and Manchester, Missouri, and two in Shanghai; one assembly and multiple test plants in Shanghai, Chengdu, Taipei and Neuhaus, Germany Engineering, sales, warehousing and logistics offices in Taipei, Hong Kong, Shanghai, Shenzhen, South Korea, Manchester and Munich; and sales and support offices around the world.