In 2014, Europe and the United States officially banned incandescent bulbs, LED market in the rapid growth at the same time, LED lighting industry is facing a common topic is how to reduce system costs and improve product use value; in order to reduce lighting costs, improve the efficiency of the drive circuit will be more Good way, and intelligent control and LED lighting combined, can significantly increase the added value of lighting products, LED lighting market to expand the key factors more.

In response to this market trend, Prudential LED intelligent dimming solution, this program is composed of supporting MCU (CK8R53), support PWM linear dimming LED driver IC (PT6917 / PT6947 / PT6977 / PT6987) and RF radio IC (PT4305 / PT4456 / PT4501), with strong anti-interference, transmission distance and cost-effective features. Putian in the wireless dimming transmission to RF as an option, the development of the RF IC ---- PT4456 & PT4305, compared to ZIGBEE, the advantages of easy to use, or even with the codec IC can be achieved with the cost Lower. PT4456 and PT4305 in the transmission distance, transmit power, receive current are better than ZIGBEE, and the same use of ISM band, Puxian RF use 315MHz or 434MHz than ZIGBEE use 2.4GHz (2.5V ~ 5V / 5mA), much lower than 0.5W, to meet the energy star static power consumption (0.5W) requirements, the use of sleep control, the use of sleep control, Can also reduce the power consumption to a lower.

In addition to intelligent dimming solution, Pucheng has also recently developed a variety of LED new IC, such as PT6976 high PF (> 0.9) non-strobe LED constant current driver, PT6920 ON / OFF segment color temperature LED constant current driver and PT6988 ON / OFF three-stage dimming non-isolated step-down LED constant current driver. PT6976 can be designed for non-isolated power supply, PT6920 / PT6988 can be used in the field of dimming products.