User Interface LED Driver with Built-in LED Error Detection

UI LED Driver with Built-in LED Error Detection from AMS
(PresseBox) ( Quickborn, )
Texim Europe recently introduced the AS1115 from austriamicrosystems. The AS1115 is an easy to use user interface (UI) LED driver that expands austriamicrosystems comprehensive LED driver portfolio. The AS1115 is a compact LED driver for 64 single LEDs or 8 digits of 7-segments and can be programmed via an I²C compatible 2-wire interface. Every segment can be individually addressed and updated separately. Only one external resistor (RSET) is required to set the current. LED brightness can be controlled by analog or digital means.

A unique feature of the AS1115 is the built-in LED error detection. Simple and intuitive to use, the user-friendly software interface allows the error diagnostics to be easily accessed during normal operation. This solution can detect any open- or short-circuit within the multiplexed 8x8 LED array, and a detailed error report can be read out with the exact position of the broken LED, this is especially helpful to reduce test time during production.

The AS1115 combines display driving and key scanning providing a complete front panel solution which eliminates the use of secondary ?P or other logics plus discrete devices, reducing BOM count and cost.

The AS1115 helps designers achieve a more efficient, more simplified design, for front panels, such as those found on set-top boxes, DVD players, washing machines, dryers and microwave ovens.
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