high performance needs great design. Datasheet: AS1110 Constant-Current, 16-Channel LED Driver with Diagnostics Please be patient while we update our brand image as austriamicrosystems and TAOS are now ams. www.ams.com AS1110 Constant-Current, 16-Channel LED Driver with Diagnostics 1 General Description 2 Key Features 16 Constant-current output channels The AS1110 is designed to drive up to 16 LEDs through a fast serial interface and features 16 output constant current drivers and an on- Excellent output current accuracy chip diagnostic read-back function. - Between channels: <3% The high clock-frequency (up to 50MHz), adjustable output current, - Between devices: <3% and flexible serial interface makes the device perfectly suited for high-volume transmission applications. Output current per channel: 0.5mA to 100mA Output current is adjustable (up to 100mA/channel) using an external Controlled In-rush current resistor (REXT). Over-Temperature, Open-LED, Shorted-LED The serial interface with Schmitt trigger inputs includes an integrated Diagnostic functions shift register. Additionally, an internal data register stores the currently displayed data. Low-current test mode The device features integrated diagnostics for over- Global fault monitoring temperature, open-LED, and shorted-LED conditions. Integrated registers store global fault status information during load as well as Low shutdown mode current: 10A the detailed temperature/open-LED/shorted-LED diagnostics results. Fast serial interface: 50MHz The AS1110 also features a low-current diagnostic mode to minimize Cascaded configuration display flicker during fault testing. The AS1110 is available in a 24-pin SSOP and the 28-pin QFN Extremely fast output drivers suitable for PWM (5x5mm) package. 24-pin SSOP and 28-pin QFN (5x5mm) Package 3 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 Figure 1. Main Diagram and Pin Assignments indicators, and traffic signs. +VLED AS1110 SDI SDO CLK LD OEN REXT GND VDD www.ams.com/LED-Driver-ICs/AS1110 Revision 1.6 1 - 24 OUTN0 OUTN1 OUTN2 OUTN3 OUTN4 OUTN5 OUTN6 OUTN7 OUTN8 OUTN9 OUTN10 OUTN11 OUTN12 OUTN13 OUTN14 OUTN15