austriamicrosystems has expanded its LED driver offering with an LED driver suited for full colour applications such as LED video displays, LCD TV backlighting, indoor/outdoor full-colour LED displays and large-size stadium displays.
The AS1112 offers an integrated PWM of 12 bits with 4096 greyscale steps per colour, reaching up to 68 billion colours with RGB. Additionally, the integrated 6-bit dot-correction allows adjusting the output current in 64 steps to compensate for LED luminous mismatch. The device offers high accuracy of ±4,5% between channels and ICs, line regulation of 2,5% and load regulation of 0,5%.
The AS1112 features 16 regulated current ports which provide constant currents for driving LEDs within a wide range of forward voltages. The output ports are guaranteed to endure a maximum voltage of 15 V, allowing multiple LEDs to be combined in series to a single pixel to increase brightness. Currents can be adjusted from 0 to 80 mA via an external resistor.
The IC's built-in LED error detection can detect any open- or short-circuit as well as any over-temperature occurrence. Two temperature thresholds allow detailed thermal surveillance of the system. For immediate detection of errors a global error pin is available; furthermore, a detailed error report can be read out with the exact position of the broken LED. The AS1112 uses the serial data input/output lines for this information so that no additional PCB tracks are needed for LED error diagnostics.
The fast 30 MHz serial interface of the AS1112 ensures high refresh rates even for huge LED display modules. A power-down function reduces the supply current to 40 nA in standby mode. The IC has an operating temperature range from -40 to +85°C and is available in the small, thermally efficient 32-pin TQFN (5 x 5 mm) package.
Image sensor evaluation kits 25 November 2019, Future Electronics
, Opto-Electronics
Ams has released the NanoVision and NanoBerry evaluation kits, which provide a ready-made platform for the development of innovative solutions based on the ams NanEyeC miniature image sensor.
The NanEyeC ...
Read more...SoCs and software for smart home and IIoT 25 November 2019, NuVision Electronics
, Telecoms, Datacoms, Wireless, IoT
Silicon Labs introduced the newest generation of its Wireless Gecko platform, Series 2. Building on the RF and multiprotocol capabilities of the Wireless Gecko portfolio, the initial Series 2 products ...
Read more...VentoFlex modular LED lighting system 23 October 2019, Mimic Components
, Opto-Electronics
Visual Communications Company (VCC) launched its VentoFlex flexible modular lighting system. The system is made up of flexible copper clad laminate (FCCL) sheets with 90 CRI Luxeon LEDs. VentoFlex was ...
Read more...60 V synchronous buck converter 23 October 2019, NuVision Electronics
, Power Electronics / Power Management
The MPQ4572 is a fully integrated, fixed-frequency synchronous step-down converter. It can achieve up to 2 A continuous output current with peak current control for excellent transient response. The wide ...
Read more...SoCs and software for smart home and IIoT 25 September 2019, NuVision Electronics
, Telecoms, Datacoms, Wireless, IoT
Silicon Labs has introduced the next generation of its Wireless Gecko platform, Series 2, designed to make Internet of Things (IoT) products more powerful, efficient and reliable. Building on the RF and ...
Read more...Exploring MagAlpha magnetic angle sensor technology 25 September 2019, NuVision Electronics
, Analogue, Mixed Signal, LSI
The ability to detect position or speed is a fundamental requirement in the control and monitoring of many mechanical systems. Slow speed position measurement in applications such as motorised actuators ...
Read more...Isolated industrial drive switches 25 September 2019, NuVision Electronics
, Power Electronics / Power Management
Silicon Labs has introduced a family of compact, robust isolated smart switches designed to drive any load, even in the harshest industrial environments. The new Si834x isolated switches are ideal for ...
Read more...LED flicker, and how to prevent it 28 August 2019, Avnet South Africa
, Opto-Electronics
With the growing popularity of LED lighting, especially now that very cheap LED luminaires are coming to the market, flicker is becoming more of a problem.
Flicker, a repetitive switching on and off ...
Read more...Digital fibre-optic sensor 28 August 2019, Vepac Electronics
, Opto-Electronics
The DFS digital fibre-optic sensor series from Tri-Tronics is designed to provide reliable detection using plastic fibre-optic light guides.
The slim-line housing with protective lid will fit in a variety ...
Read more...All-in-one light pipe system 28 August 2019, Vepac Electronics
, Opto-Electronics
Bivar’s Zero Light Bleed adaptor technology, with built-in surface-mount LED, channels light directly to the lens, eliminating disruptive light bleed.
The all-in-one adaptor system is built with optimum ...
printer friendly version