Product Highlights

? High power factor meeting EU and USA requirements

? Very low component count

? Frequency jitter reduces EMI

? No bias supply or transformer required

Cost-Effective LED driver

The LYTSwitch-0 family parts are a highly integrated combination

of controller, driver and switching power MOSFET that enable low

component-count, non-isolated switching topologies for highly

cost competitive LED lighting applications.

66 kHz operation together with frequency jittering insures a very

low-cost EMI filter. Less than <50 ms start-up time turn-on

without overshoot, improves end user experience – no delay.

Power Factor Correction

Allows designs that easily meet European and North American

standards for PFC in consumer lighting applications.

Tight CC Performance

Accurate current limit with tight line and load regulation that is

stable over a wide temperature range makes the LYTSwitch-0

ideal for LED lighting applications.

Comprehensive Protection

Integrated auto-restart for short-circuit, open-circuit and openloop

faults as well as a high threshold over-temperature

protection feature (min. 135 °C) with automatic restart provide

extensive protection at no additional cost.

LYTSwitch-0 Supports Different LED Applications

Flyback, buck, buck-boost and boost architectures are all

supported by the LYTSwitch-0 family. The 700 V switching power

MOSFET supports an input voltage range of 85 VAC to 308 VAC.

Description

The LYTSwitch?-0 family is specifically designed for low cost

LED bulb replacement applications. LYTSwitch-0 devices

integrate a 700 V power MOSFET, oscillator, simple ON/OFF

control scheme, a high-voltage switched current source,

frequency jittering, cycle-by-cycle current limit and thermal

shutdown circuitry into a monolithic IC.