Digital LED controller delivers near 100% TRIAC dimmer compatibility

Digital LED controller delivers near 100% TRIAC dimmer compatibility

Featuring the company’s TruDim technology, the CS161X digital LED controller family has been tested to provide near 100% compatibility with a wide array of dimmers representing the vast majority of the installed base worldwide. The part directly solves dimmer compatibility issues that have been a major barrier to consumer adoption of LED retrofit bulbs.

The part’s digital intelligence allows the controller to identify the type of dimmer in use and adapt its dimmer compatibility algorithm to provide smooth dimming in much the same way the consumer has come to expect from decades of using incandescent light bulbs. This smart adaptive digital signal processing technology is not possible with today’s analog controllers.

The CS161X family’s unique adaptive dimmer compatibility algorithm controls the boost stage to enable best-in-class flicker-free phase dimming across the light spectrum, including “deep dimming” down to zero percent of light output with leading edge, trailing edge and digital dimmers.

It integrates a variable conduction mode boost converter (CRM/CCM), providing power factor correction and dimmer compatibility with primary-side control, constant output current and quasi-resonant flyback or buck output stage and includes solutions for both 100-120 Vac and 220-240 Vac line voltages.It is available in a 16-pin SOIC package.($0.81 ea/100,000 available now)

By Christina Nickolas

Cirrus Logic , Austin , TX
Product Support 800-625-4084
http://www.cirrus.com