Boost Converter supports high-brightness LED lighting.

Press Release Summary:

Optimized for driving multiple white LEDs connected in series, Model ZSLS7025 has application input voltage range of 6-100 V, which supports lighting products using multi-cell batteries or regulated 12, 24, and 48 V power rails. Low-voltage feedback mechanism enables efficiency up to 95%, while open-circuit detection protects application circuit. Housed in RoHS-compliant SOP-8 package, driver features PWM, linear, and DC voltage dimming and operates from -40 to +185°F.

Original Press Release:

ZMDI, a Global Semiconductor Company, Launches the ZSLS7025, a High-Efficiency Boost LED Driver for High-Brightness LEDs in Low-Voltage Lighting Applications

DRESDEN, Germany, -- ZMD AG (ZMDI), a Dresden-based semiconductor company that specializes in enabling energy-efficient solutions, today announces a new addition to its LED driver family, the ZSLS7025. As a global supplier of analog and mixed-signal solutions for automotive, industrial, medical, information technology and consumer applications, ZMDI introduces the ZSLS7025, a step-up (boost) 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 the 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, our second boost converter, 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," stated Andy Smith, Product Manager at ZMDI. "This is particularly attractive for designers of low-voltage high-brightness lighting products, and the ZSLS7025's extended application operating voltage and current range provide designers with additional flexibility."

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, and its 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 global supplier of analog and mixed-signal semiconductors solutions for automotive, industrial, medical, information technology and consumer applications. These solutions enable our customers to create the most energy-efficient products in power management, lighting and sensors.

For over 50 years, ZMDI has been globally headquartered in Dresden, Germany. With over 300 employees worldwide, ZMDI serves its customers with sales offices and design centers throughout Germany, Bulgaria, France, Ireland, Italy, Japan, Korea, Taiwan, United Kingdom and the United States.

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For further information:

Daniel Aitken, ZMDI Global Director of Corporate Marketing and Communications, T

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