BM2SC12xFP2-LBZ is an advanced AC/DC converter IC in the industry, which adopts an integrated package. It has built a 1700V withstand voltage SiC MOSFET and a control circuit optimized for its drive into a small surface mount package (TO263-7L). Mainly suitable for auxiliary power supply of industrial equipment such as general-purpose inverters, AC servos, commercial air conditioners, street lamps, etc. that require handling high power. In addition, it can ensure long-term stable supply, which is very suitable for industrial equipment applications.
*As of June 17, 2021, ROHM survey data
Highlights of BM2SC12xFP2-LBZ
Built in 1700V withstand voltage SiC MOSFET makes the design simpler
√ Adopting surface mount packaging (TO263-7L), it can be automatically installed on the circuit board
Compared with discrete structures, it can greatly reduce the number of components (such as reducing 12 components and 1 heat sink to 1 component)
Compared with Si MOSFET, SiC MOSFET can improve power conversion efficiency by up to 5%
Using quasi resonant mode can achieve lower EMI
By reducing the number of components, significant miniaturization and higher reliability can be achieved
√ Can ensure long-term stable supply, very suitable for industrial equipment applications
Four new models with different actions after activating the protection function have been added to the product lineup
Both individual products and evaluation board BM2SC123FP2-EVK-001 can be purchased through e-commerce platforms
Features and advantages of AC/DC converter IC with built-in SiC MOSFET: BM2SC12xFP2-LBZ
BM2SC12xFP2-LBZ is developed as an auxiliary power supply application for various control systems in industrial equipment. In the power conversion circuit of auxiliary power supply, the main switching devices are still ordinary Si (silicon) MOSFETs and IGBTs, so how to reduce the losses of these power devices has become a major issue in recent years. Due to the built-in SiC MOSFET with excellent energy-saving performance in BM2SC12xFP2-LBZ, the design of AC/DC converters using SiC MOSFET can be made easier. In addition, this series of products adopts surface mount sealing and supports automatic installation, which can reduce installation costs.
The following summarizes the characteristics of BM2SC12xFP2-LBZ and the advantages based on these characteristics.
Adopting a surface mount package that supports 48W output, it can be automatically installed, thereby reducing installation costs
BM2SC12xFP2-LBZ adopts the surface mount package TO263-7L developed for built-in SiC MOSFET. Despite its compact size, it can still ensure packaging safety (creepage distance) when handling high power, and as a product without heat sink surface mount packaging, it can support up to 48W (24V/2A, etc.) output power while ensuring installation accuracy. This type of output level device used to be packaged in a plug-in type, which could not be automatically installed, while BM2SC12xFP2-LBZ uses a surface mount packaging that supports automatic installation, which greatly helps reduce the number of components and lower installation costs.
Integrated packaging greatly reduces the number of external components, circuit scale, and installation area
BM2SC12xFP2-LBZ significantly reduces the number of external components by integrating SiC MOSFET and control IC into one package. Compared to using a common discrete structure with Si MOSFET and 48W output power, it can reduce up to 12 components (AC/DC converter control IC x 1, 800V withstand voltage Si MOSFET x 2, Zener diode x 3, resistor x 6) and 1 heat sink. In addition, due to the high voltage resistance and excellent noise resistance of SiC MOSFETs, smaller noise and surge resistant components can also be used. Moreover, due to the use of quasi resonant control mode, it can operate more efficiently with lower noise compared to PWM mode, resulting in minimal noise interference (EMI) to other circuits and devices, requiring minimal noise reduction measures.
● It can reduce design and evaluation time, and improve reliability through integrated packaging and built-in protection functions
Integrated packaging can reduce the working hours of component selection and evaluation, making design easier. In addition, the built-in SiC MOSFET has various protection functions such as high-precision overheating protection, overload protection, overvoltage protection of power supply voltage pins, FET overcurrent protection, and overvoltage protection of secondary side voltage, greatly reducing the number of components and making the product more reliable. Buy electronic components in stock on the Only Sample Mall
Adopting control circuits optimized for driving SiC MOSFETs for higher efficiency
BM2SC12xFP2-LBZ adopts a gate drive circuit optimized for driving built-in SiC MOSFET, which can fully utilize the characteristics of SiC MOSFET - low loss. Compared with ordinary products using Si MOSFET, the efficiency improvement can be as high as 5% (as of ROHM survey data in June 2021). The following figure shows the comparative data. During the comparison, adjustments were made to each control IC to achieve optimal efficiency.
Application example:
●
Universal inverter
● AC servo
●PLC（Programmable Logic Controller）
● Production and manufacturing equipment
● Robots
● Commercial air conditioning
Industrial lighting (street lamps, etc.)
Related information:
Both BM2SC12xFP2-LBZ products and evaluation boards can be purchased through e-commerce platforms. Please click here to learn about the application guide, inventory confirmation, and detailed information for each evaluation board. The following table is excerpted from the evaluation board list on the link page. In addition to the BM2SC12xFP2-LBZ introduced in this article, there are two other evaluation boards available for sale, both of which are equipped with AC/DC converter ICs using 1700V SiC MOSFETs.
Using 1700V SiC MOSFET
The evaluation board of the BM2SC123FP2-LBZ series is BM2SC123FP2-EVK-001, which is equipped with an automatic recovery type BM2SC123FP2-LBZ for smooth evaluation.
BD7682FJ-LB-EVK-402 is an evaluation board equipped with an external controller IC BD7682FJ-LB with SiC MOSFET.
BM2SCQ123T-EVK-001 is an evaluation board equipped with a through-hole insertion TO220 package for BM2SCQ123T-LBZ. Unlike the surface mount BM2SC12xFP2-LBZ series, it is also an automatic recovery product.
