National Semiconductor's New High-Brightness LED Driver Simplifies Area-lighting Design
National Semiconductor Corp. (NYSE: NSM) today introduced the LM3466, a highly integrated linear LED driver that simplifies the design of high power, wide area lighting fixtures such as streetlights. The LM3466, with just a few passive components, provides a complete system that drives each LED string from any off-the-shelf AC/DC constant-current power supply.
LED drivers today often require multiple components to accurately drive a string of LEDs. In addition, maintaining equal currents among LED strings results in a complex design. National's LM3466 solves these problems by integrating a MOSFET and utilizing a unique control scheme. The high level of integration enables a basic design of just one LM3466 along with one resistor and one capacitor to drive a string of LEDs. A complete fixture can be constructed by repeating the strings in parallel.
A unique dynamic current equalizing control scheme enables communication between each LM3466 LED driver to divide current equally or ratiometrically amongst multiple active LED strings. No binning of the LEDs is required.LED grow light suppliers in China are sky lanterns rolling out models with better price-performance ratios. During an open (inactive) string state, each LM3466 automatically equalizes current throughout remaining strings to maintain relatively constant output power.
National will demonstrate the LM3466 in its booth A43 in Hall 8.1 at the Guangzhou International Lighting Exhibition in Guangzhou, China, June 9-12.
Technical Features of National's LM3466 LED Driver
National's LM3466 linear LED driver integrates a 70V, 1.5A N-Channel MOSFET and features a wide input range of 6V to 70V.Unlike compact cfl bulbs fluorescent light bulbs, LED based light bulbs provide a variety of lighting options- including the ability to provide a wide range of light, which allows them to act as a proper replacement light bulb LED strings with maximum stack voltages exceeding 70V may be driven with minor changes to the external components.Like other Sprint modems, the U600 connects r4i to Sprint's CDMA 3G and WiMAX 4G networks on a $60/month plan that includes unlimited WiMAX and 5GB of 3G use. The LM3466 includes a fault status output, input under voltage lockout,Under efforts of led spotlight boosting the viability of LED luminaires, many companies are expanding high-power selections. current limit and thermal shutdown protection. Linear circuitry wards against any EMI and ensures compliance to the EN 55015 EMC standard or other regional EMC regulatory requirements. Each LM3466 conducts a current up to 1.5A. Communication between the LM3466 and constant current power supply is not required, nor is LED voltage binning. The LM3466 operates with minimal overhead voltage to maximize electrical efficiency. System output power is maintained even for any number of open strings.
Pricing and Availability
Samples are available now with production quantities in July.Philips LED business is inside of Philips lighting so it Led light is more difficult to determine whether they are meeting expectations. The LM3466 LED driver is offered in an 8-pin ePSOP package and priced at $1.30 each in quantities of 1,000. More information is available at
National Semiconductor is a leader in power management technology. Known for its easy-to-use analog integrated circuits and world-class supply chain, National's high-performance analog products enable its customers' systems to be more energy efficient. Headquartered in Santa Clara, Calif., National reported sales of $1.42 billion for fiscal 2010
National Semiconductor is a registered trademark of National Semiconductor Corporation. All other trademarks are the property of their respective owners.
National Semiconductor Corp. (NYSE: NSM) today introduced the LM3466, a highly integrated linear LED driver that simplifies the design of high power, wide area lighting fixtures such as streetlights. The LM3466, with just a few passive components, provides a complete system that drives each LED string from any off-the-shelf AC/DC constant-current power supply.
LED drivers today often require multiple components to accurately drive a string of LEDs. In addition, maintaining equal currents among LED strings results in a complex design. National's LM3466 solves these problems by integrating a MOSFET and utilizing a unique control scheme. The high level of integration enables a basic design of just one LM3466 along with one resistor and one capacitor to drive a string of LEDs. A complete fixture can be constructed by repeating the strings in parallel.
A unique dynamic current equalizing control scheme enables communication between each LM3466 LED driver to divide current equally or ratiometrically amongst multiple active LED strings. No binning of the LEDs is required.LED grow light suppliers in China are sky lanterns rolling out models with better price-performance ratios. During an open (inactive) string state, each LM3466 automatically equalizes current throughout remaining strings to maintain relatively constant output power.
National will demonstrate the LM3466 in its booth A43 in Hall 8.1 at the Guangzhou International Lighting Exhibition in Guangzhou, China, June 9-12.
Technical Features of National's LM3466 LED Driver
National's LM3466 linear LED driver integrates a 70V, 1.5A N-Channel MOSFET and features a wide input range of 6V to 70V.Unlike compact cfl bulbs fluorescent light bulbs, LED based light bulbs provide a variety of lighting options- including the ability to provide a wide range of light, which allows them to act as a proper replacement light bulb LED strings with maximum stack voltages exceeding 70V may be driven with minor changes to the external components.Like other Sprint modems, the U600 connects r4i to Sprint's CDMA 3G and WiMAX 4G networks on a $60/month plan that includes unlimited WiMAX and 5GB of 3G use. The LM3466 includes a fault status output, input under voltage lockout,Under efforts of led spotlight boosting the viability of LED luminaires, many companies are expanding high-power selections. current limit and thermal shutdown protection. Linear circuitry wards against any EMI and ensures compliance to the EN 55015 EMC standard or other regional EMC regulatory requirements. Each LM3466 conducts a current up to 1.5A. Communication between the LM3466 and constant current power supply is not required, nor is LED voltage binning. The LM3466 operates with minimal overhead voltage to maximize electrical efficiency. System output power is maintained even for any number of open strings.
Pricing and Availability
Samples are available now with production quantities in July.Philips LED business is inside of Philips lighting so it Led light is more difficult to determine whether they are meeting expectations. The LM3466 LED driver is offered in an 8-pin ePSOP package and priced at $1.30 each in quantities of 1,000. More information is available at
National Semiconductor is a leader in power management technology. Known for its easy-to-use analog integrated circuits and world-class supply chain, National's high-performance analog products enable its customers' systems to be more energy efficient. Headquartered in Santa Clara, Calif., National reported sales of $1.42 billion for fiscal 2010
National Semiconductor is a registered trademark of National Semiconductor Corporation. All other trademarks are the property of their respective owners.
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