LED Driver Reduces Lighting Product Size and Cost
Source/Type:  LIGHTimes Online - News - Staff reports

Author: LIGHTimes News Staff

March 9, 2010... Diodes Incorporated has introduced a 1 A rated linear mode constant current LED driver specifically designed to reduce the size and cost of a variety of general illumination products, including flashlights, emergency lighting, garden lighting, and poolside lighting.

The driver is packaged in an optimized small footprint, low profile DFN package. The company boasts that the highly integrated DLD101 LED driver provides designers with significant board space savings, with the package's high thermal efficiency, which enables higher power dissipation than comparable SOT23 ICs.

The DLD101 driver integrates a 'base accessible pre-biased transistor' to incorporate biasing resistors on chip. The company says that this transistor allows the allows the designer to adjust the LED current setting now via a single external resistor, without the need for an additional boost transistor. A high drain current 60V N-channel MOSFET has been used instead of a bipolar transistor for the pass element, to reduce overall bias current.

The company says that in addition to reducing the PCB size and external component count of alternative LED driver solutions, the DLD101 completely removes the EMI signature associated with switching regulator solutions. The DLD101 1A linear mode constant current LED driver is priced at $0.25 each in quantities of 10K. Company News Release

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