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AS3820

Dialog Semiconductor
Part Number AS3820
Manufacturer Dialog Semiconductor
Description 16-Channel White LED Controller
Published Aug 15, 2018
Detailed Description AS3820 16-Channel White LED Controller for LCD Backlight 1 Description The AS3820 is a 16 channel precision LED controll...
Datasheet PDF File AS3820 PDF File

AS3820
AS3820

Overview
AS3820 16-Channel White LED Controller for LCD Backlight 1 Description The AS3820 is a 16 channel precision LED controller for use in LCD-backlight panels.
Dynamic power feedback controls the external power supply to guarantee best efficiency.
Built-in safety features include thermal shutdown as well as open and short LED detection.
The device is programmable via serial interface.
2 Features ●● All LED backlight topologies xx No limit of VLED or ILED, device is not exposed to high voltage/high current ●● Synchronization with TV frame xx VSYNC and HSYNC inputs available as well as a digital PLL integrated(2) ●● Optimum power savings through local dimming xx 16 fully flexible 12 bit PWM generators (period, high time, delay, reverse) ●● Lowest BOM xx Due to 2 pin concept of the output channel: no HV protection, no cascade FETs ●● Highest brightness uniformity xx One global high accuracy 10 bit DAC which sets the LED current (±0.
5% accuracy) ●● Digital enhan...


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