Lighting drivers power up to 20 series-connected LEDs
6 September 2006Power Electronics / Power Management
Access Control & Identity Management
National Semiconductor recently introduced two new, highly-integrated lighting management units (LMUs) that include a high-voltage boost converter and programmable constant-current driver to control up to 20 series-connected LEDs in display backlights, and keypad, RGB and camera flash LEDs. The LP3958 and LP5526 LMUs feature tiny micro SMD packages.
The devices can drive from two to five strings of four series-connected LEDs, depending on the lighting application. They are optimised for use in single- or dual-display phones, as well as large display PDA phones. Each features three general-purpose input/outputs (GPIOs) to trigger lighting functions such as flash or to control additional device-enable signals.
The LP3958 features 70 mA of output current and the LP5526 features 150 mA of output current. Both devices include an I²C interface. The LP3958 LMU can drive up to eight white LEDs grouped as four series-connected LEDs per string, with typically one string per display. The LP5526 can drive multidie serial-flash LEDs in camera Flash (up to 3 W of power) and torch applications.
For more information contact Lambert Colyn, Arrow Altech Distribution, +27 (0)11 923 9600, [email protected]
Nice unveils MyNice Smartgo
News & Events Access Control & Identity Management
Nice SA has announced the release of MyNice Smartgo, a compact access automation solution, designed specifically for the South African market, combining an easy-to-install device with a user-friendly smartphone application.friendly smartphone application.
Read more...Next-gen power meter Electrocomp Express
Power Electronics / Power Management
The VT-PWR-LV is a next-gen Vista Touch power meter from Trumeter for single, split, and three-phase systems.
Read more...Wi-Fi 6 and Bluetooth LE co-processor Altron Arrow
Telecoms, Datacoms, Wireless, IoT
STMicroelectronics has released its ST67W611M1, a low-power Wi-Fi 6 and Bluetooth LE combo co-processor module.
Read more...Advanced PMIC for high-performance AI applications ASIC Design Services
Power Electronics / Power Management
Microchip Technology has announced the MCP16701, a Power Management Integrated Circuit (PMIC) designed to meet the needs of high-performance MPU and FPGA designers.
Read more...1-Wire EEPROM with secure authenticator Altron Arrow
DSP, Micros & Memory
The DS28E54 secure authenticator combines FIPS 202-compliant secure hash algorithm (SHA-3) challenge and response authentication with secured electrically erasable programmable read-only memory.
Read more...New SiC power MOSFET Future Electronics
Power Electronics / Power Management
STMicroelectronics’ SCT012H90G3AG is a robust, automotive-grade SiC MOSFET, engineered for demanding power electronics, featuring a 900?V drain-source voltage and exceptionally low on-resistance of 12?mO at 60?A.
Read more...Fundamental motor control design challenges and solutions
Power Electronics / Power Management
Mouser Electronics has announced a new eBook in collaboration with Qorvo, featuring industry experts providing key insights into methods, power efficiency and integration solutions available for motor control applications.
Read more...The 6 GHz band radio solution Altron Arrow
Telecoms, Datacoms, Wireless, IoT
Analog Devices’ 16 nm transceiver family offers a highly integrated solution for this new frequency band, featuring low power consumption and high performance.
Read more...Power management IC for battery products
Power Electronics / Power Management
The nPM1304 PMIC complements Nordic’s nPM1300 PMIC with a highly integrated, ultra-low power solution and precision fuel gauging for small size battery applications.
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.
printer friendly version