The AS3695A, a 16-channel white LED driver for direct lighting, and the AS3695C, a 16-channel white LED controller for edge lighting, are claimed to enable the brightest and clearest TV pictures and 3D effects. Both ICs features power management, a driver accuracy of ±0.5%, and channel-to-channel current matching of ±0.2%. The AS3695A features an output voltage of 30 V max and an output current of 120 mA.
The devices are programmable via an SPI port and provide built-in safety features, including thermal shutdown and open and short LED detection. Other features include linear current setting using a 10-bit DAC, output slew rate programmability, H-Sync and V-Sync inputs to synchronize with a TV, direct PWM mode, undervoltage auto-turnoff, overvoltage auto-turnoff, temperature shutdown, and fault interrupt output. (Ea/1,000: AS3695A QFN, $2.10; AS3695C QFN, $2.20; AS3695C LQFP, $2.70 — available now.)
austriamicrosystems , Unetrremstaetten , Austria
US Sales Office 408-345-1790
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