AS3695C

AS3695C 16 channel white LED controller for LCD backlight Product Specification, Confidential General Description The AS3695C is a 16 channels precision LED controller for driving external FET/BJT in LCD-backlight panels. Dynamic power feedback controls the external power supply to guarantee best efficiency. Build in safety features include thermal shutdown as well as open and short LED detection. The device is programmable via serial interface. 16 Channel LED driver Output voltage max. 30V Output current only limited by external transistor Linear current setting using 10-bit DAC Current accuracy ±0.5% @ VDAC=250mV Channel to Channel current accuracy ±0.2% BJT base current compensation Output slew rate programmable Current programmable with external resistor Digital current control with 16 independent PWM generators Free programmable 12 bit resolution ( period, high time and delay ) PWM-generator clock Internal RC-oscillator External Clock PLL-synthesized clock from external signal H-Sync, V-Sync inputs to synchronize with TV-set Direct PWM mode Undervoltage detection ( open LED ) Undervoltage auto-turnoff Overvoltage detection ( short LED ) Overvoltage auto-turnoff Temperature shutdown Register lock/unlock function Fault interrupt output 2 configurable supply regulation feedback outputs SPI interface 4kV ESD at voltage sense inputs 2kV ESD an all other pins Package QFN64 9x9mm, 0.5mm pitch LQFP64 14x14mm, 0.8mm pitch Applications LED backlighting for LCD – TV sets and mon...