Intelligent MOSFET power modules target domestic fan motors
An intelligent power module, AIM702H50B for low-power BLDC motor drives systems is new to market from Alpha and Omega Semiconductor. The drives suit fan motors in home appliances and air-conditioners that require a compact size and efficient design.
The new IPM7 series consists of advanced super junction MOSFETs designed for motor drive and high voltage gate driving ICs with an integrated bootstrap circuit in an ultra-compact surface mountable package.
Technical highlights include a compact package measuring 18mm x 7.5mm, three-phase super junction MOSFET inverter topology for motor drives, and integrated HVIC gate driver including bootstrap circuit, wide input interface (3~18V). It also offers control supply under-voltage lockout protection and Integrated over-temperature protection and monitoring functions.
“A BLDC-based inverter has been widely used in fan motors because it is quicker, quieter, and more energy-efficient than the conventional solutions using dc motors or ac induction motors with on/off control. Nowadays, its demand and expansion are becoming a mandatory requirement owing to energy saving and regulations.
“Without a doubt, IPM7 will bring a lot of advantages for fan motor applications by significantly enhancing the cost-effective development of the system, reducing the inverter board size, and obtaining easy and reliable PCB assembly. Quick and precise detection of fault temperature in IPM7 will play a significant role in fan motor drives to secure a reliable design as well as a long time of operation,” said Dr. Brian Suh, vice-president of IGBT/IPM product lines at AOS.
The AIM702H50B is immediately available in production quantities with a lead-time of 12 to 14 weeks. The unit price for 10,000 pieces is $2.7.
Alpha and Omega Semiconductor designs, develops and supplies worldwide a range of power semiconductors, including power MOSFET, IGBT, IPM, TVS, HVIC, GaN/SiC, power IC and digital power products. The company’s portfolio of products targets high-volume applications, including portable computers, flat-panel TVs, LED lighting, smart phones, battery packs, consumer and industrial motor controls and power supplies for TVs, computers, servers, and telecommunications equipment.