In recent years, with the improvement of energy-saving awareness, the application of higher voltage, more energy saving, and smaller SiC power semiconductors can be supported in the field of energy-saving awareness. On the other hand, in an industrial equipment, in addition to the main power circuit, there is a built-in control power supply for various control systems, but it is still widely used in the design cycle. Si-MOSFET and large lossIGBTTherefore, there is a big topic in energy saving.

RoHM is aimed at these challenges, starting to develop built-in high-pressure, low loss SiC MOSFET in 2019, and has been committed to developing ICs that can greater SiC power semiconductor performance. The industry is in an advanced position.

This time, the new product has a good energy-saving performance of energy-saving performance and is controlled for industrial equipment auxiliary power supply * 3 optimization.CircuitThe small surface post package (TO263) is used to help the development of the energy-saving AC / DC converter easier. New products can be automatically attached to the board using the device, which is impossible to implement in the past; and when using a secondary power supply of 48W, output 48W, the number of components is significantly reduced compared to the configuration of ordinary products (Reduce the heat dissipation plate and 12 parts). This not only reduces the risk of component failures, but also increases power conversion efficiency by 5% by SiC MOSFET. Therefore, it also helps to significantly reduce the installation cost of the factory, but also provide a smaller, higher reliability and more energy efficient solutions.

This new product has been selling samples in May 2021 (sample prices 1,500 yen / single, excluding tax), which is planned to be put into mass production in the scale of 100,000 months from October 2021. In addition, new products andAssess board"BM2SC123FP2-EVK-001" has begun to sell from Ameya360, Oneac, etc.

In the future, RoHM will continue to develop advanced power semiconductor * 4 and advanced simulation control ICs such as SiC, continuously optimize these products and provide better solutions for energy saving and system optimization of industrial equipment.

"BM2SC12XFP2-LBZ" integrates 1700V to-resist SiC MOSFET and the SiC MOSFET drive gate driving circuit such as an auxiliary power supply for industrial equipment. By achieving the following features, the development of energy-saving AC / DC converters is easier to significantly reduce the installation cost of the factory, but also provide smaller, higher reliability and more energy saving solutions for industrial equipment.

1. Supported table stickers packaged by up to 48W output power, which helps to reduce the installation cost of the factory

New products use table stickers "TO263-7L" developed for built-in SiC MOSFET. Despite compact size, it is still possible to fully ensure the processing of encapsulation safety (creepage distance) when the high power is handled, and the product of the surface of the non-radiator can support the output power of up to 48W (24V, 2A, etc.). This product can be attached to the board using the automated device, which is incommeted in this range of products. Plus reductionComponentThe advantage of quantity will help to greatly reduce the installation cost of the factory.

2. Reduce the heat dissipation plate and up to 12 parts to 1, with an overwhelming advantage in small size

New products use integrated package, compared to common discrete product configuration with Si-MOSFET, the number of parts is significantly reduced, 1 package includes up to 12 components (AC / DC converter Control IC, 800V withstand SI-MOSFET × 2, Zenerdiode× 3,Resistor× 6) and heat sink. In addition, since the SiC MOSFET has a high pressure resistance and excellent noise reduction performance, miniaturization of noise reduction members can also achieve.

3. Reduce development cycle and risk, built-in protection, significant improvement

New products use integrated packages to reduce clamping circuits and drive circuit componentsSelection Time-reliability assessment of workers, can reduce the risk of component failure, which can reduce the development cycle of introducing SiC MOSFET, which is more. In addition, in addition to the built-in SIC MOSFET, high-precision heat protection is achieved, and an over-load protection (FB OLP), overvoltage protection (VCC OVP) of the power supply voltage pin,CurrentProtecting, secondary voltage overvoltage protection, etc., the rich protection function of continuously driven industrial equipment power supply, achieving higher reliability.

4. Exciting the performance of the SiC MOSFET, the energy saving effect is significant

The SiC MOSFET drive gate drive circuit is mounted in the new product, and the power conversion efficiency increased by 5% by more limiting of the strength of the SiC MOSFET, compared with the normal configuration of Si-MOSFET (as of June 2021) Rohm survey data). In addition, the control circuit of this product adopts a quasi-resonant mode, which is low in operation, high efficiency, and can sufficiently reduce the noise effect of industrial equipment.

Aware of

◇ Universal inverter ◇ AC servo ◇PLC(PROG)RamMable Logic Controller

◇ Manufacturing device ◇ Robot ◇ Commercial air conditioner ◇ Industrial lighting (street light, etc.)

The auxiliary power supply circuit of various industrial equipment for 400V specifications.