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50mA, 16-Channel LED Driver with Diagnostics


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

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.


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