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AS3695C

austriamicrosystems AG
Part Number AS3695C
Manufacturer austriamicrosystems AG
Description 16 channel white LED controller
Published Jan 30, 2016
Detailed Description AS3695C 16 channel white LED controller for LCD backlight Product Specification, Confidential General Description The ...
Datasheet PDF File AS3695C PDF File

AS3695C
AS3695C

Overview
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 monitors 1 Block diagram VDD VDD FB1 FB2 V2_5 Filt1 Filt2 VSSA VSS_SENSE D1 D16 G1 PWM Reference PWM G16 S1 DAC S16 D2 D15 G2 PWM Fault detectors PWM G15 S2 S15 D3 SMPS D14 G3 PWM feedback PWM G14 S3 S14 D4 PLL D13 G4 PWM S4 PWM G13 S13 D5 AS3695C D12 G5 PWM PWM G12 S5 S12 D6 G6 PWM S6 PWM D11 G11 S11 D7 D10 G7 PWM Registers PWM G10 S7 S10 D8 D9 G8 PWM SPI PWM G9 S8 Interface S9 xRES xCS SDI SCL SDO HSYNC VSYNC EPAD xFAULT VDD www.
austriamicro...


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