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AS3820 Datasheet 16-Channel White LED Controller

Manufacturer: Dialog Semiconductor (now Renesas)

General 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

Overview

AS3820 16-Channel White LED Controller for LCD Backlight 1.

Key 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).