Products, Materials & Tools | Jul 04, 2012

ZMDI Offers High-Efficiency Boost LED Driver for HB LEDs

ZMD AG expanded the lineup of its LED drivers with the addition of the ZSLS7025, a step-up converter for high-brightness LED lighting. It is well suited for many consumer, industrial and after-market automotive applications. The ZSLS7025 is optimal for driving multiple white LEDs connected in series from a low voltage supply.

The ZSLS7025 has an application input voltage range of 6V to 100V, which supports lighting products using multi-cell batteries or regulated 12V, 24V and 48V power rails. A low-voltage feedback mechanism helps maximize operating efficiency, and the open-circuit detection protects the application circuit. The output current is programmable via external components, and the ZSLS7025 features pulse-width modulation (PWM), linear and DC voltage dimming. With an adjustable over-voltage protection, the chip and the system operate safely even if the load is not connected. Other features include under-voltage protection and over-temperature protection.

The ZSLS7025 is ZMDI's second boost converter and complements the advantages of the ZLED7015 by increasing the operating voltage range and the output current capability. The step-up topology of the ZSLS7025 enables applications using strings of multiple high-brightness LEDs while being driven from low-voltage sources, ZMDI says. This feature set makes the device particularly attractive for designers of low-voltage high-brightness lighting products.

The low supply voltage and constant output current operation make the ZSLS7025 an ideal choice for safety extra-low voltage (SELV) applications or multifaceted reflector (MR16) lamps, frequently found in residential and retail lighting applications. Other key application areas include low-voltage retrofit lighting, replacement tubes, LED backlighting, after-market automotive lighting products, low-voltage general-purpose industrial and consumer applications, as well as signage, outdoor, architectural and building lighting.

Key Features:
• Wide input range of 6 VDC to 100 VDC
• High efficiency up to 95%
• Open-circuit detection protects against high currents
• Inherently stable control scheme requires no additional loop compensation
• Small form-factor package
• Ideal for low-voltage retrofit lighting

The ZSLS7025 is supplied in a RoHS-compliant SOP-8 package. Operating temperature range is -40degree(s)C to +85degree(s)C (-40degree(s)F to +185degree(s)F). Samples and a complete evaluation kit are available upon request. For 2,500 pieces, the ZSLS7025 is priced at EUR0.62/$0.80.

About ZMDI:
Zentrum Mikroelektronik Dresden AG (ZMDI) is a premier supplier of innovative energy efficient analog and mixed-signal semiconductors for the automotive, mobile medical, industrial automation, and consumer markets. The Company’s application-specific standard products (ASSPs) and application-specific integrated circuits (ASICs) are known for their robust, cost-effective performance in demanding environments characterized by high temperature, high voltage, and the need for ultra-low power. Headquartered in Dresden, Germany, ZMDI has 280 employees worldwide and serves customers from its offices in Dresden, Stuttgart, Germany; Milan, Italy; Pocatello, ID, Melville, NY; Tokyo, Japan; Taipei, Taiwan and Seoul, Korea. ZMDI has design centres in Dresden, Stuttgart, Munich, Germany; Varna, Bulgaria and Madison, Wisconsin. See more at http://www.zmdi.com/.

FEATURED

High Volume Laser Diode and VCSEL Testing

High Volume Laser Diode and VCSEL Testing Hitherto established measurement technologies for laser diodes – such as dispersive scanning spectrometry and Fourier-transform infrared spectroscopy (FTIR) – can react sensitively to a production environment. High-resolution array spectroradiometers are effective alternatives that offer multiple ... Read more »

FEATURED

Luxeon V2, the Best Choice for a 2 mm² High Power LED

Luxeon V2, the Best Choice for a 2 mm² High Power LED Lumileds announced breakthrough high power performance with the new Luxeon V2 LED. With the highest performance in its class for output and efficacy, the emitter easily enables DLC Premium performance at the system level. Luxeon V2 utilizes a 2 x 2 mm Chip Scale Package (CSP) in a 3.5 x 3.5 mm ... Read more »

FEATURED

The 22nd China (Guzhen) International Lighting Fair

The 22nd China (Guzhen) International Lighting Fair China (Guzhen) International Lighting Fair is based in China Lighting Capital- Guzhen Town, where thousands of lighting manufacturers lies and is dubbed as the source of lightings. With the help of local government and UBM, the fair has been successfully held for 21 editions. Read more »

EDITORIAL

High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »

page_peel