LED Drivers Abet Next-Gen TVs

Enlarging the company’s portfolio of LED drivers and controllers for the latest generation of LCD TVs are the 16-channel AS3695A white LED driver for direct lighting and AS3695C 16-channel white LED controller for edge lighting. Both integrate power management and specify an accuracy of ±0.5% that ensures a brightness and color matching and channel-to-channel current matching of ±0.2%. They are programmable via a SPI port and provide safety features including thermal shutdown and open and short LED detection. Other features include linear current settings using a 10-bit DAC, output slew rate programmability, H-Sync and V-Sync inputs, a direct PWM mode, under-voltage auto turnoff, over-voltage auto turnoff, temperature shutdown, and fault interrupt outputs. Prices for the AS3695A (QFN package), AS3695C (QFN), and AS3695C (LQFP) are $2.10, $2.20, and $2.70 each/1,000, respectively. AUSTRIAMICROSYSTEMS USA INC., Raleigh, NC. (919) 676-5292.