L6563HTR

The L6563HTR is a current-mode Power Factor Controller operating in transition mode, which embeds the same features existing in the L6563S with the addition of a high voltage start-up source. These functions make the IC especially suitable for applications that have to be compliant with energy saving regulations and where the PFC pre-regulator works as the master stage. The highly linear multiplier, along with a special correction circuit that reduces crossover distortion of the mains current, allows wide-range-mains operation with an extremely low THD even over a large load range. The output voltage is controlled by means of a voltage-mode error amplifier and an accurate (1% @Tj=25°C) internal voltage reference. Loop's stability is optimized by the voltage feedforward function (1/V2 correction), which in this IC uses a proprietary technique that considerably improves line transient response as well in case of mains both drops and surges (“bidirectional”).

• Tracking boost function
• Fast bidirectional input voltage feedforward (1/V² correction)
• Interface for cascaded converter's PWM controller
• Remote ON/OFF control
• Accurate adjustable output overvoltage protection
• Protection against feedback loop disconnection (latched shutdown)
• Inductor saturation protection

Ứng Dụng

Industrial, Power Management, LED Lighting

Cảnh Báo

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.