Light emitting diode (LED) drive integrated circuit (IC) architecture revolutionizes. LED driver IC vendors have begun to deploy high-power LED driver IC solutions, which separate metal oxide semiconductor field effect transistors (MOSFETs) from LED driver IC packages to cope with the increasing demand for high-wattage lighting in the commercial lighting market.
Wu Yujun, technical marketing manager of ST, said that the major change in the LED lighting market this year is the increase in customer demand for high-power LED lighting bulb types such as Parabolic Aluminized Reflector Light. After the circuit is connected in series, it usually needs 30-40 watts of power to start.
Wu Yujun, marketing manager of STMicroelectronics, said that in the second half of this year, STMicroelectronics LED driver IC architecture will have new changes, and will give customers more choices in product portfolio.
Wu Yujun pointed out that since the bulb lamp used for home lighting only needs about 12 watts to operate, most MOSFETs are packaged with LED driver ICs due to space constraints. However, this type of packaging not only limits the wattage of LED lamps used in driver ICs, but more importantly, if the MOSFET on-resistance value (RDS (ON)) is low, it will operate at a high current to improve efficiency. Putting it together with the driver IC will actually increase the overall power consumption of the bulb.
Zhang Wengui, senior manager of Infineon's Power Management and Multi-Electronics Business Department, also shared a similar view. He pointed out that LED lamps with smaller packages such as candlelights and bulbs can adopt integrated solutions for outdoor LED lighting applications. In order to improve the reliability of the driver IC, high-voltage MOSFETs with a voltage of more than 1,000 volts (V) will become an important key because lightning strikes are often conducted through the power line to the ground line, which may interfere with the quality of the LED street lighting.
Zhang Wengui further pointed out that in such applications, it would be a better arrangement to separate the MOSFET from the driver IC, because the MOSFET and the driver IC have high and low voltages in the manufacturing process. If the two are put together, the result It will be that the functions of the MOSFET and the driver IC will not be optimized in the circuit design process. The manufacturer also needs to add more components to reinforce the function. In this way, the overall circuit board cost may not necessarily be reduced due to integration.
Wu Yujun pointed out that STMicroelectronics will launch a new Pulse Width Modulation (PWM) LED driver IC in the fourth quarter of this year in response to the latest trends in the LED market, and an additional 800-volt MOSFET. Such a driver IC architecture will help ST Semiconductors are attacking the high-power LED lighting application market and giving customers more design flexibility.
Auto Elevator,Elevator For Cars,Garage Car Elevator,Residential Car Elevator
XI'AN TYPICAL ELEVATOR CO., LTD , https://www.chinaxiantypical.com