Highly configurable 8-channel LED driver for LCD panel backlighting

October 01, 2012 // By Christoph Hammerschmidt
With a new series of 8-channel LED drivers, chip vendor Atmel offers a power management system with patented Efficiency Optimizer (EO) to enhance power efficiency for LCD backlighting applications.

The company's new MSL3080/86/88 LED drivers are designed for industrial LCD backlighting applications such as instrumentation, medical, avionics, military, kiosk, automotive and rugged displays.

The MSL3080/86/88 LED drivers also feature proprietary control scheme and robust design delivering greater than 92 percent power efficiency for up to 20W LED backlit LCD displays.

When combined with Atmel AVR microcontrollers (MCUs), including tinyAVR and megaAVR MCUs, the MSL3080/86/88 LED drivers provide an unprecedented degree of flexibility, comprehensive fault and system monitoring as well as over 5000:1 PWM dimming range for the most demanding applications.

Atmel's MSL3086/88 devices feature automatic string phasing that enables low electromagnetic interference (EMI) and eliminates audible noise. The MSL3088 LED driver offers video sync input for applications that require synchronization with LCD refresh, such as small televisions and monitors eliminating artifacts such as waterfall noise and ghosting effects.

The MSL3080 driver allows designers to operate the internal current sinks in parallel for higher LED currents, up to 480mA.

Atmel’s MSL3080/86/88 devices are available now. To help accelerate a designer’s project, an Atmel MSL308X EV evaluation kit is also available.

For more information, visit www.atmel.com