General Description
The AS1110 is designed to drive up to 16 LEDs through a fast serial interface and features 16 output constant current drivers and an onchip 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: <±3%
■ Output current per channel: 0.5mA to 100mA
■ 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.