AAT2428 Overview
The AAT2428 is a highly integrated, high efficiency white LED backlight solution for large size LCD panels used in LCD TVs. Integrated precision current sinks provide drive for up to 16 LED channels. The IC has user programmable options for current sinks to be controlled globally, in banks of 2, or 4 LED groups.
AAT2428 Key Features
- VIN Range: 10.8V
- 16 Programmable LED Current Sinks
- ±1.5% Accuracy @ 25°C (101.72mA) -- ±2.0% Matching @ 25°C (101.72mA)
- SPI Interface -- Digitally Programmable LED Channels -- LED Bank Control Options
- High Resolution Digital Control of LED Banks -- 12-Bit Resolution Grayscale PWM Brightness -- 12-Bit Resolution Channel
- VSYNC PWM and Delay Synchronization
- VSYNC range of up to 1kHz
- External or Internal Grayscale Clock
- 16 Unique Device Addresses -- Up to 256 Current Sinks
- Integrated Fault Protection -- Open Circuit LED(s) -- Programmable Shorted-LED Threshold -- Current Limit Protection --