Tech news tagged ‘reliability’

Two pin crowbar protects from open circuit strings

For protecting drivers when an LED goes open circuit, NUD4700 from On Semi is a 2x4mm electronic shunt, claming to clamp to 1V in what looks like less than 100ns, according to the data sheet.

As well as protecting the driver, it will keep the rest of a string of…

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162 lm/W at 25°C from Cree lighting LED

Cree is claiming 148 lm/W at 85°C (350mA) for its latest lighting LED, writes Steve Bush. XT-E, as it has been named, will hit 162 lm/W at 25°C, it added. “The XT-E LED more than doubles the lumens per watt of the XP-E…

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Molex introduces a solder-less holder for LEDs

Molex has introduced a solder-less holder for Bridgelux ES lighting LEDs, writes Steve Bush. ES series LEDs produce 400-2,000 lm in three colour temperatures and are aimed at applications suited to: 20-100W incandescent and halogen bulbs, 7-42W compact fluorescents, and 18-50W HID sources. They…

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Diodes LED driver switches to tight current control

Diodes has employed new forms of current control in its latest LED driver ICs which it said is designed to increase the reliability of high brightness lamps, writes Richard Wilson.

The ZXLD1370 LED driver controller operates in buck, boost and buck-boost topologies…

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