Low-Cost LED Drivers Target GU10 Bulbs

20th June 2013

Nat Bowers

0 0

Power Integrations is driving down the cost of LED drivers with the launch of its LYTSwitch-0 ICs. The ICs target cost-sensitive, non-isolated, non-dimmable GU10 bulbs and other space-constrained bulb applications. Using a 6V high-side buck converter as an example PI says savings are made at each step of the design.

It uses just 13 components and has integral protection features including open loop, short-circuit and over temperature. It features PI's patented frequency jittering technology and it supports universal inputs from 90 to 235VAC. Using more components multiple topologies are supported including low-side buck, buck boost, flyback and boost.

Reference Design Kits include a working power supply, sample devices, unpopulated pcb, data sheet, comprehensive engineering report, PI Expert design software and other related documentation.

Using PI Expert designers can create a schematic and layout to produce a Bill of Materials. This can be exported to check part availability at PI's high service distribution partners. The aim is to reduce design time for engineers.

LYTSwitch-0 devices feature efficiencies of more than 90% and deliver constant current with better than +/-5% regulation in typical applications. Power factor is greater than 0.8 at 115 VAC and 0.55 at 230 VAC, meeting ENERGYSTAR V1 draft 3 consumer lighting standards for North America and Ecodesign Directive Lot 19 part 2 for Europe.

Key applications include low-cost LED light bulbs such as GU10 and candelabra styles.