Powerelectronics 4204 066022 Power Integrations

LED Driver ICs Reduce Complexity in Bulbs, Tubes and Ballasts up to 22 W

Oct. 25, 2016
Power Integrations announced its LYTSwitch-1 single-stage, non-isolated, buck topology LED driver IC family.

Power Integrations announced its LYTSwitch-1 single-stage, non-isolated, buck topology LED driver IC family. Featuring a very compact footprint, the IC enables the design of LED bulbs and tubes with high constant-current accuracy while using a minimum number of components. A novel driver algorithm ensures high power factor (PF) and low total harmonic distortion (THD) while maintaining very high efficiency.

Housed in a compact SO-8 package, LYTSwitch-1 ICs are greater than 93% efficient with a PF of over 0.9 and THD as low as 15%. Devices can be used in a low-side buck topology for reduced EMI or in a high-side buck topology which simplifies design. Delivering up to 22 W without a heatsink, the universal input (100 - 308 VAC) ICs incorporate a 725 V MOSFET for high reliability. Designers can make use of small, off-the-shelf inductors due to a unique peak current control algorithm. The new devices meet all applicable international standards including: DOE 6 (external power supply), CEC Title 20 and 24, ENERGY STAR® SSL, EN61000-3-2 (C) plus China and India standards.

In common with all Power Integrations products, LYTSwitch-1 LED driver ICs have a host of protection features including thermal foldback with end-stop shutdown, short circuit protection, input and output OVP, overcurrent and SOA protection.        

LYTSwitch-1 IC samples are available now. Devices are priced at $0.26 in 10,000-piece quantities. 

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