LYT4221E Information

LYTSwitch-4x2x High Power LED Drivers

Power Integrations LYTSwitch-4x2x high power LED drivers feature a wide dimming range and fast start-up, even when turning-on from a low conduction angle and easily meet international requirements for THD and harmonics. Output current is tightly regulated with better than ±5% CC tolerance1. Efficiency of up to 92% is achieved in typical applications. LYTSwitch-4 drivers provide excellent turn-on characteristics for leading-edge and trailing-edge TRIAC dimming applications. LYTSwitch-4 ICs are highly integrated and employ a primary-side control technique that eliminates the optoisolator and reduces component count. This allows the use of low-cost single-sided printed circuit boards. Combining PFC and CC functions into a single-stage also helps reduce cost and increase efficiency. The 132 kHz switching frequency permits the use of small, low-cost magnetics. Power Integrations LYTSwitch-4 high power LED drivers do not use primary-side aluminum electrolytic bulk capacitors which greatly extended driver lifetime, especially in bulb and other high temperature applications.

Specifications

LYT4221E Price & Stock

Power Integrations LYT4221E pricing and available inventory.

AD5242BRUZ1M distributor

Alternate Names

Power Integrations has several brands around the world that may have alternate names for LYT4221E due to regional differences or acquisition. LYT4221E may also be known as the following names: