Suited for thin LCD TVs, the AS3693B LED controller IC manages 16 LED channels, each with a current accuracy of 0.5%. It is especially designed to allow perfect synchronization of the LCD picture and the LED backlight unit in order to realize so called “block dimming control” for outstanding picture quality.
Features include external FET control and current sensing, an output voltage sense up to 50 V, and H-Sync, V-Sync inputs to synchronize with the TV set. The part also includes a built-in 5-V shunt regulator, open and short LED detection, thermal shutdown, and I2 C or SPI interface with 5 bit device address. The AS3693B is available in an ePTQFP64 10 x 10-mm package. ($3.11 ea/1,000 — available now.)
austriamicrosystems
Unterpremstaetten , Austria
Markus Luidolt 43 (0) 3136 500 5828
Advertisement
Learn more about ams (formerly austriamicrosystems)
