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AAT2430C Datasheet 16 Channel White LED Driver

Manufacturer: Skyworks Solutions

General Description

The AAT2430C is a highly integrated, high efficiency white LED backlight solution for large size LCD panels used in LCD TVs.

By controlling external power MOSFETs (such as the Skyworks' AAT2491 high-voltage TrenchDMOS array), the AAT2430C facilitates 16 current sink channels to provide precision constant-current drive for strings of white LEDs, where the number of series-connected LEDs per string is only limited by the system LED voltage supply.

Current in each backlight string and string-to-string matching is controlled using I-Precise™ sensing and control circuitry, a novel on-chip method to accurately control drain current in external discrete power MOSFETs independent of their construction and without the need for precision sense resistors.

Overview

PRODUCT SUMMARY AAT2430C 16 Channel White LED Driver Solution with LED Current and Timing Control.

Key Features

  •  VIN Range: 10.8V.
  • 28V.
  •  16 Programmable LED Current Sinks.
  • ±1.5% Accuracy @ RSET = 3.01kΩ.
  • ±1.5% Matching @ RSET = 3.01kΩ.
  •  SPI Interface.
  • Digitally Programmable Individual Channels.
  • Up to 15MHz Clock Speed.
  • Read/Write Registers.
  •  High Resolution Digital Control for Individual Channels.
  • 12-bit Resolution Grayscale PWM Brightness.
  • 12-bit Resolution Channel Phase Delay.
  •  8-Bit Resolution Global Current Setting (.