Compact surface mount AC / DC converters synthesize high voltage SJ MOSFETs | Heisener Electronics
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Compact surface mount AC / DC converters synthesize high voltage SJ MOSFETs

Technology Cover
Post-datum: 2021-10-04, Rohm Semiconductor

    Rohm has developed AC / DC flyback converter integrated 730v breakdown MOSFET: BM2P06XMF-z series (BM2P060MF-Z, BM2P061MF-z and BM2P063MF-Z). These devices are ideal for auxiliary power and SMPS solutions for industrial drives and household appliances, including air conditioners, white goods and factory automation equipment. These flyback integrated circuits do not require additional radiators, discharge resistors and capacitors. By providing integrated solutions, they help designers shorten design time, simplify circuits, reduce costs and improve reliability.

    In recent years, domestic and industrial AC / DC converters must support 85v-264v AC to adapt to different AC voltages around the world and comply with international standards, such as energy saving star IEC 62368 safety standard. The surface mounting of AC / DC Converter IC is also very important to reduce the factory installation cost. However, since high heat / high loss DMOSFET and planar MOSFET are still widely used in AC / DC Converter IC, it has been a challenge to provide tens of watts of output power in surface mount package until now.

   To address these issues, the company created a new compact surface-mount high-power 45W model BM2P06XMF-Z. These models feature primitive low-loss SJ MOSFET and optimized PWM control circuits capable of developing 85V to 264V AC/DC converters. Get surface mount packages that support automatic board mounting (which was difficult to achieve in the past). At the same time, the functions implemented ensure compliance with IEC62368 safety standards, even if the discharge resistor is removed. In addition, the use of original low standby power control technology, to provide very low standby power consumption. It also supports supply voltages up to 60V (VCC) without the need for external step-down power circuits.

    Automatic installation reduces factory installation costs when compared to conventional products with similar performance. In addition, ROHM can reduce backup power supply by more than 90% and reduce the number of power circuit components by four, resulting in greater energy savings and higher application reliability.

    Examples of applications include consumer electronics such as air conditioners, appliances, displays and hair dryers; Industrial equipment, including inverters, AC servers, routers and office automation equipment; Ideal for AC/DC converters with output power up to 45W in consumer and industrial applications.

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