ams AS1110
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. The serial interface with Schmitt trigger inputs includes an integrated shift register.GENERAL DESCRIPTION
Output current is adjustable (up to 100mA/channel) using an external resistor (REXT). Additionally, an internal data register stores the currently displayed data. The device features integrated diagnostics for overtemperature, open-LED, and shorted-LED conditions. Integrated registers store global fault status information during load as well as the detailed temperature/open-LED/shorted-LED diagnostics results. The AS1110 also features a low-current diagnostic mode to minimize display flicker during fault testing. The AS1110 is available in a 24-pin SSOP and the 28-pin QFN (5x5mm) package. Figure 1. Main Diagram and Pin Assignments 2 KeyFEATURES
●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 m...