Opto-Electronics


LED driver supports block dimming

20 February 2008 Opto-Electronics

austriamicrosystems has co-developed a new high precision LED driver with LG.Philips LCD, a leading provider of LCD displays. Designed for LCD TV backlight applications, the innovative AS3693 allows dimming of multiple segments of the LCD TV backlight, enabling highest contrast ratios and best picture quality.

So-called block dimming results in only the required segments of the backlight being on, making bright spots in the TV picture really bright and dark parts completely black.

The AS3693 offers control of 16 LED channels, where each channel can be controlled completely independently via built-in PWM generators while withstanding up to 50 V.

The device offers high-precision current control of 0,5% accuracy, and a chain of drivers can be controlled via SPI or I²C for larger LCD panels. External clock and synchronising inputs allow the synchronisation of the LCD backlight with the TV picture. Built-in safety features include thermal shutdown as well as open- and short-circuit LED detection.

For more information contact ASIC Design Services, +27 (0)11 315 8316, info@asic.co.za, www.asic.co.za, NuVision Electronics, +27 (0)11 894 8214, calim@nuvisionelec.co.za, www.nuvisionelec.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

High-voltage X-Ray generators for advanced imaging
Vepac Electronics Opto-Electronics
X-ray has developed a high-performance range of HV generators designed for accuracy, long-term durability, and seamless integration into OEM environments.

Read more...
Microchip advances Space-Grade timing performance
ASIC Design Services Telecoms, Datacoms, Wireless, IoT
Microchip Technology has expanded its atomic clock portfolio with the radiation-tolerant Space CSAC-SA65, a Chip Scale Atomic Clock designed to deliver precise timing for space systems.

Read more...
Secure, low-power Bluetooth LE SoC
NuVision Electronics Telecoms, Datacoms, Wireless, IoT
Silicon Labs unveils BG2B, its lowest-power Bluetooth LE SoC with industry-leading power efficiency, security, and integration.

Read more...
GigaDevice expands optical communication portfolio
NuVision Electronics Telecoms, Datacoms, Wireless, IoT
GigaDevice has introduced the new GD32E512 and GD32E252 series MCUs specifically designed for optical module applications.

Read more...
GigaDevice expands optical communication portfolio
NuVision Electronics Telecoms, Datacoms, Wireless, IoT
GigaDevice has introduced the new GD32E512 and GD32E252 series MCUs specifically designed for optical module applications.

Read more...
Compact direct Time-of-Flight 3D LiDAR module
Altron Arrow Opto-Electronics Electronics Technology AI & ML
The VL53L9 from STMicroelectronics is the first direct Time-of-Flight (dToF) 3D LiDAR all-in-one module in ST’s portfolio, offering a resolution of 2,3K zones, wide field of view, on-chip processing, 100 frames per second, and sensing range from 5 centimeters to 9 meters.

Read more...
Easy to integrate, quick to react
Opto-Electronics
Würth Elektronik has expanded its range of WL-ICLEDs – RGB-LEDs with integrated controller – to include dual-wire ICLEDs.

Read more...
Industrial time-of-flight proximity sensor
EBV Electrolink Opto-Electronics
STMicroelectronics’ VL53L4ED is a compact, high accuracy time-of-flight proximity sensor designed for industrial and embedded applications that require precise short range distance measurement.

Read more...
Miniature xtal for critical timing
ASIC Design Services Telecoms, Datacoms, Wireless, IoT
Microchip’s EX-423 Evacuated Miniature Crystal Oscillator is a compact, low-power timing solution designed for applications that demand high stability, accuracy, and long-term reliability.

Read more...
Flexible enclosure lighting solutions
IOT Electronics Opto-Electronics
Phoenix Contact’s range of enclosure lights is designed to provide uniform illumination throughout control cabinets, while offering flexible installation and energy-efficient operation.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved