LED drivers offer best-in-class matching, accuracy

LED drivers offer best-in-class matching, accuracy

The 2-ch ISL97682, 3-ch ISL97683, and 4-ch ISL97684 LED drivers operate across an input voltage range of 4 to 26.5 V and deliver outputs up to 45 V. The drivers are claimed to deliver best-in-class channel matching, accuracy for TFT LCD backlighting applications, offering a current accuracy of 1.5% and channel-to-channel current matching of 0.7%.

The devices can also operate from inputs as low as 3 V and deliver outputs up to 26.5 V in the bootstrap configuration, making them suitable for systems using single lithium-ion batteries. The devices incorporate optional automatic switching between PWM and PFM modes, providing the best (up to 90%) power efficiency across the input voltage and output load range.

They are housed in a 3 x 3-mm, 16-pin TQFN package.Optional channel-to-channel phase shift control reduces video and audio noise interference. ($1.35 ea/1,000 — available now.)

By Christina Nickolas

Intersil , Milpitas , CA
Sales 408-432-8888
www.intersil.com