General Description

The AS1113 is designed to drive up to 16 LEDs through a fast serial interface and features 16 output constant current drivers and an on-chip diagnostic read-back function.

The high clock-frequency (up to 50MHz), adjustable output current, and flexible serial interface makes the device perfectly suited for high-volume transmission applications.

Key Features

16 Constant-Current Output Channels

Excellent Output Current Accuracy

 - Between Channels: <±3%

 - Between Devices: <±6%

Output Current Per Channel: 0.5 to 50mA

Controlled In-Rush Current

Over-Temperature, Open-LED, Shorted-LED Diagnostic Functions

Low-Current Test Mode

Global Fault Monitoring

Low Shutdown Mode Current: 10µA

Fast Serial Interface: 50MHz

Cascaded Configuration

Extremely Fast Output Drivers Suitable for PWM

24-pin SSOP and 28-pin QFN (5x5mm) Package

Applications

The device is ideal for fixed- or slow-rolling displays using static or multiplexed LED matrix and dimming functions, large LED matrix displays, mixed LED display and switch monitoring, displays in elevators, public transports (underground, trains, buses, taxis, airplanes, etc.), large displays in stadiums and public areas, price indicators in retail stores, promotional panels, bar-graph displays, industrial controller displays, white good panels, emergency light indicators, and traffic signs.