Skip to main content

New smartlight Driver from AMS Integrates Control of Three Separate Banks of ‘Smart’ Indicator LEDs

ams AG (SIX: AMS), a leading worldwide designer and manufacturer of high-performance analog ICs for consumer & communications, industry & medical and automotive applications, today released the AS3661, a new smart LED driver which controls up to nine LEDs to produce sophisticated indicator lighting effects in mobile devices independent of the power-hungry baseband processor.

The device is useful for many consumer electronics devices such as 3G and LTE modems, USB memory sticks, game controllers and headsets in which indicator lighting can enhance the user interface, and in which high-value light effects and low power consumption are required.

The AS3661 allows easy command-based programming of all light patterns. Three independent program execution engines form three independently programmable LED banks. This means that LED drivers can be grouped based on their function so that, for example, the first bank of drivers could be assigned to keypad illumination, the second bank to ‘funlights’ (patterns of light outputs produced by multiple LEDs), and the third group to notification LED(s).

Each bank can contain from one to nine LED driver outputs; the AS3661 offers nine LED channels in total with up to 25mA per channel. A dedicated 12-bit PWM for each of the nine channels delivers absolutely smooth color transitions and enables the production of linear, logarithmic and ratiometric fading effects.

Instructions for the program execution engines are stored in the program memory. The total capacity of the program memory is 96 instructions and the user can allocate a memory of 1.5kbit as required by the engines. The AS3661 smart LED driver has an I2C-compatible control interface with four pin-selectable addresses. The device also has a flexible General Purpose Output (GPO) which can be used as a digital control pin for other devices. The INT pin can be used to notify the central processor when a lighting sequence has ended. The device also provides a trigger input interface which allows for synchronization between multiple devices.

To optimize battery lifetime the design of the AS3661 includes various power-saving features. Each channel operates on a dropout voltage of less than 50mV at 10mA powered by a high-efficiency 150mA charge pump with automatic switching between 1:1 and 1:1.5 mode. Furthermore, a power save mode is automatically entered when LED outputs are not active, resulting in a low idle mode current of 10μA (typical).

”ams has always been a leap ahead in bringing exciting new functionality to market for mobile phones and other consumer electronics devices. Our AS3661 smartlight driver enables systems designers to offer users more eye-catching effects and functionality than ever before. This new product truly brings color into the life of portable devices,” said Ronald Tingl, Senior Marketing Manager of opto-electronic products at ams. “The AS3661 joins a broad ams portfolio of lighting products such as flashlight and backlight and dot matrix drivers, as well as powerful lighting management units.”

Comments

Popular posts from this blog

Banner Engineering DF-G3 Discrete Fiber Amplifier Features World-Class Long Range Sensing Capability

Banner Engineering introduces its DF-G3 discrete long-range fiber amplifier with dual digital displays for use with plastic and glass fiber optic assemblies. Featuring increased sensing power, the DF-G3 can sense more than 3 meters (10 ft.) with opposed mode fibers or more than 1 meter (3 ft.) with diffuse mode fibers. The extra power provides increased detection reliability for dark targets at long range and enhanced detection sensitivity when using specialty fiber assemblies for large area and small part detection applications.

The DF-G3 is available with a single discrete output or two dual discrete outputs. The dual discrete outputs can be independently taught to trigger at different intensity values, which is ideal for correct part-in-place or error-proofing, bottle down, and edge guiding applications.

“We developed the DF-G3 fiber amplifier to meet our customers’ need to precisely detect smaller targets at longer ranges” said Dennis Smith, Senior Marketing Manager, Banner Engin…

IDEC Releases New Line of High Efficiency Power Supplies

IDEC Corporation announces the PS5R-V line of DIN-rail power supplies, offering their customers high-efficiency in a compact form factor at competitive prices. These power supplies suit a wide range of needs in the industrial marketplace, and carry all of the required certifications necessary for use in these demanding applications. This next generation of the industry standard PS5R power supply family has updated features and specifications to meet current and future needs.

The PS5R-V line of power supplies includes 10W, 15W, 30W, 60W and 120W versions, with additional versions coming soon. These power supplies have a very compact form factor with overall dimensions reduced by up to 25% from previous generations. The reduced form factors combine with DIN-rail mounting to free up valuable control panel space and reduce installation costs.

Operating temperature ranges up to -25 to +75 degrees C offer more versatility. These extended operating temperature ranges often allow these power…

TURCK M8 CORDSETS WITH 100 PERCENT SHIELDING OPTION PROTECT AGAINST EMI/RFI

TURCK is now offering the option to completely shield M8 picofast ® cordsets by connecting a braided shield directly to the coupling nut. This provides a cost-effective and reliable connection with 100 percent cable and connector shielding, which protects against electromagnetic and radio frequency interference.

The 3 and 4-pin cordsets are available with flexlife ® PVC or PUR jacketed cable. All connectors deliver IEC IP 67 protection.

The M8 picofast line, like most TURCK cordsets, provides male or female, straight and right angle connectors, standard and custom lengths, and pigtails or extensions. Fully encapsulated mating receptacles are also offered, completing the system.