<span style='color:red'>ROHM</span> Launches an Ultra-Compact Wireless Power Chipset for Wearables
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ROHM Launches an Ultra-Compact Wireless Power Chipset for Wearables

　　ROHM has developed a wireless power supply IC chipset consisting of the receiver - ML7670 - and transmitter - ML7671 - compatible with Near Field Communication (NFC) technology for compact wearables such as smart rings and smart bands as well as peripheral devices like smart pens.　　The smart ring market has seen rapid growth in recent years, primarily in healthcare and fitness applications. However, for extremely small ring-shaped devices worn on the finger, wired charging is impractical, while conventional Qi wireless charging standard is difficult to implement due to constraints such as coil size. This has driven increased demand for a proximity-based power transfer method capable of reliably charging ultra-compact devices.　　In response, NFC-based charging, which operates at the high-frequency 13.56MHz band that enables antenna miniaturization, is attracting increased attention, with adoption accelerating in next-generation wearables. Following the successful commercialization of the 1W ML7660/ML7661, ROHM has developed the ML7670/ML7671 chipset optimized for even smaller devices.　　This new chipset builds on the proven receiver - ML7660 - and transmitter - ML7661. The maximum power transfer is specified at 250mW, while peripheral components such as the switching MOSFETs required to supply power to the charging IC are built in. The result is a solution optimized for both mounting area and power transfer efficiency in the power class demanded by compact wearable devices, especially smart rings.　　The ML7670 power receiver IC achieves a maximum power transfer efficiency of 45% in the 250mW low output range – all in an industry-leading form factor of just 2.28 × 2.56 × 0.48mm. A key feature of the new chipset is superior performance that surpasses the efficiency of comparable products in the same class by optimizing elements such as coil matching, rectifier circuitry, and reduced losses in switching devices.　　What's more, all firmware required for wireless power delivery is embedded directly within the IC, eliminating the need for a host MCU. This significantly reduces board space along with development workload in device design.　　Compliance with NFC Forum (WLC 2.0) enables power transfer while maintaining compatibility with existing devices, positioning the chipset as a core element in the expanding NFC wireless power ecosystem.　　The new chipset is already in mass production. Furthermore, it has been adopted in SOXAI RING 2, the latest model launched on December 10th, 2025, by SOXAI, Inc. (“SOXAI” is pronounced “SOK-sai”.), the Japanese developer and distributor of the original sleep monitoring ring SOXAI RING. Evaluation boards and reference designs are also offered to facilitate integration. For more information, please contact a sales representative or submit an inquiry via the contact page on ROHM’s website.　　Going forward, ROHM will continue to promote device development that leverages miniaturization and low-power consumption technologies essential for wearable devices, contributing to improved user convenience and the continued growth of the wearable market.　　Specifications　　Case Study: SOXAI RING 2 Adoption Example SOXAI RING is the only smart ring for sleep management developed in Japan capable of accurately capturing and analyzing sleep data. It incorporates cutting-edge technologies such as an optical vital sensor, temperature sensor, accelerometer, Bluetooth® Low Energy communication, and NFC wireless charging functionality.　　The latest model, SOXAI RING 2, is equipped with Deep Sensing™, a proprietary photoplethysmography (PPG) sensor that significantly improves measurement accuracy, enabling the visualization of physical health changes with far greater depth and precision.　　Bluetooth® is a registered trademark of Bluetooth SIG, Inc. in the US.　　Deep Sensing™ is a trademark or registered trademark of SOXAI, Inc.
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Release time：2026-04-29 10:03 reading：262 Continue reading>>
<span style='color:red'>ROHM</span> Develops 5th Generation SiC MOSFETs with Approx. 30% Lower On-Resistance at High Temperatures
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ROHM Develops 5th Generation SiC MOSFETs with Approx. 30% Lower On-Resistance at High Temperatures

　　ROHM has developed the latest device of its EcoSiC™ series: the 5th Generation SiC MOSFETs optimized for high efficiency power applications. This technology is ideally suitable for automotive electric powertrain systems – such as traction inverters for electric vehicles (xEVs) – as well as power supplies for AI servers and industrial equipment such as data centers.　　In recent years, the rapid proliferation of generative AI and big data processing has accelerated the deployment of high-performance servers in the industrial equipment sector. The resulting surge in power density is placing a greater strain on power infrastructure, raising concerns about localized supply shortages. While smart grids that combine renewable energy sources (i.e., solar power) with existing power supply networks are emerging as a possible solution, minimizing losses during energy conversion and storage remains a key challenge.　　In the automotive sector, next-generation electric vehicles require extended cruising range and faster charging, creating demand for lower-loss inverters and higher performance onboard chargers (OBCs). Against this backdrop, the adoption of SiC devices capable of both low loss and high efficiency is increasing in high-power applications ranging from a few kilowatts to hundreds of kilowatts.　　As the first semiconductor company globally, ROHM was the first in the world to begin mass production of SiC MOSFETs in 2010, contributing to reducing energy losses by implementing SiC devices over a wide range of high-power applications, including offering an early lineup of products compliant with automotive reliability standards such as AEC-Q101. Furthermore, the 4th generation SiC MOSFETs, for which sample provision began in June 2020, have been adopted globally in automotive and industrial applications. They are available across a broad product portfolio, including both discrete devices and modules, supporting the rapid market adoption of SiC technology.　　The newly developed 5th Generation SiC MOSFETs achieve industry-leading low loss, driving the broader adoption of SiC technology. Through structural enhancements and manufacturing process optimization, ON resistance is reduced by approximately 30% during high temperature operation (Tj=175°C) compared to conventional 4th Generation products (under the same breakdown voltage and chip size conditions). This improvement contributes to making units smaller while increasing output power in high temperature applications such as traction inverters for xEVs.　　ROHM began supporting the bare dies business with 5th Generation SiC MOSFETs in 2025 and completed development in March 2026. Furthermore, starting from July 2026, ROHM will provide samples of discrete devices and modules incorporating 5th Generation SiC MOSFETs.　　Going forward, ROHM plans to expand its 5th Generation SiC MOSFET lineup with additional breakdown voltage and package options. ROHM will also continue to enhance its design tools and strengthen application support. By further promoting the implementation of SiC technology – now entering the mainstream phase – ROHM contributes to more efficient power utilization across a wide variety of high-power applications.　　Application ExamplesAutomotive Systems: xEV traction inverters, onboard chargers (OBCs), DC-DC converters, electric compressors　　Industrial Equipment: Power supplies for AI servers and data centers, PV inverters, ESS (Energy Storage Systems), UPS (Uninterruptible Power Supplies), eVTOL, AC servos　　EcoSiC™ BrandEcoSiC™ is a brand of devices that utilize silicon carbide, which is attracting attention in the power device field for performance that surpasses silicon. ROHM independently develops the core technologies needed to advance SiC devices completely in-house, from wafer fabrication and process development to packaging and quality control. At the same time, we have established a fully integrated production system that spans the entire manufacturing flow, solidifying our position as a leading SiC supplier.
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Release time：2026-04-24 10:34 reading：283 Continue reading>>
<span style='color:red'>ROHM</span> has added New Lineup of 17 High-Performance Op Amps Enhancing Design Flexibility
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ROHM has added New Lineup of 17 High-Performance Op Amps Enhancing Design Flexibility

　　ROHM has added the new CMOS Operational Amplifier (op amp) series “TLRx728” and “BD728x” to its lineup. These are suitable for a wide range of applications including automotive, industrial, and consumer systems. A broad lineup also makes product selection easier.　　In recent years, demand for high-accuracy op amps has been rapidly increasing as automotive and industrial systems become more sophisticated, demanding faster speed, better precision, and higher efficiency. In applications requiring amplification of sensor outputs, minimizing signal error and delay is essential. To meet these requirements, a well-balanced set of key characteristics is needed, including Input Offset Voltage, Noise, and Slew Rate.　　These new products are high-performance op amps that offer a low input offset voltage, low noise, and high slew rate. TLRx728 features an input offset voltage of 150 μV (typ.), while the BD728x offers 1.6 mV (typ.). Both series have a noise voltage density of 12 nV/√Hz at 1kHz and a slew rate of 10 V/μs. They are therefore suitable for a wide range of precision applications, including sensor signal processing, current detection circuits, motor driver control, and power supply monitoring systems. Both series are designed to balance versatility and high performance rather than being limited to specific applications.　　Rail-to-Rail input/output capability allows maximum utilization of the power supply voltage range, ensuring a wide dynamic range.　　Furthermore, in addition to 1 channel, 2 channels, and 4 channels configurations, a diverse range of packages is available, enabling optimal product selection based on application and board size.　　The new products are being released simultaneously except for certain part numbers (Sample Price: 1-channel: $2.0, 2-channels: $2.8, 4-channels: $4.0 per unit, excluding tax).　　Application Examples　　Automotive equipment, industrial equipment, and consumer electronics.　　Example use case: Sensor signal processing, current detection circuits, motor driver control, power supply monitoring systems.　　Terminology　　Input Offset Voltage　　The voltage that must be applied between the op amp’s two input terminals to force the output to zero volts.　　Slew Rate　　A performance metric indicating how rapidly an op amp's output voltage can change while operating in linear region.　　Noise Voltage Density　　Also called noise spectral density. This is noise power per square root of bandwidth of 1 Hz. The total noise power within a bandwidth of B Hz is Noise Voltage Density x √B.
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Release time：2026-04-03 10:56 reading：479 Continue reading>>
<span style='color:red'>ROHM</span> has Introduced Reference Designs for Three-Phase Inverters Featuring New SiC Power Modules
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ROHM has Introduced Reference Designs for Three-Phase Inverters Featuring New SiC Power Modules

　　ROHM has released reference designs "REF68005", "REF68006", and "REF68004" for three-phase inverter circuits featuring EcoSiC™ brand SiC molded modules "HSDIP20", "DOT-247", and "TRCDRIVE pack™" on ROHM’s website. Designers can use the data provided in these reference designs to create the drive circuit boards. When combined with ROHM's SiC modules, these designs help reduce the person-hours required for device evaluation.　　In high power conversion circuits, while SiC power devices contribute to higher efficiency and reliability, they can increase the workload associated with peripheral circuit and thermal design. The reference designs released by ROHM support output power levels up to the 300kW class, facilitating the adoption of SiC modules across a wide range of automotive and industrial applications.　　Three types of SiC modules compatible with these reference designs are already available for purchase through online distributors such as DigiKey and Farnell.　　About Reference Designs　　These reference designs are intended for users to utilize the publicly released design data. If you would like to obtain a reference design board or evaluation kit, please contact a sales representative or visit the contact page on ROHM’s website. (Quantities are limited.)　　Regarding Online Sales of SiC ModulesDetails of SiC modules currently available through online distributors can be found below.　　New SiC Molded Modules Now Available for Online Purchase!　　Simulation SupportWe also provide various support resources to facilitate quick evaluation and implementation of our products. ROHM’s comprehensive solutions, including simulation and thermal design support, can provide valuable assistance in component selection.　　Various design data related to the evaluation boards can be downloaded from their respective reference design page, while the product information for SiC modules compatible with the reference designs can be accessed from each product page as well.　　Additionally, the ROHM Solution Simulator, a simulation tool enabling system-level verification from the component selection stage, is available on ROHM’s website.　　HSDIP20: Reference Design / ROHM Solution Simulator / LTspice® Circuit ModelDOT-247: Reference Design / ROHM Solution Simulator / LTspice® Circuit ModelTRCDRIVE pack™: Reference Design　　Other Reference DesignsIn addition to those introduced in this release, we offer numerous reference designs that contribute to reduced design effort for users. More details are available through the link below.　　Reference Design / Application Evaluation Kit　　Related InformationNews Release (HSDIP20)　　ROHM Develops New High Power Density SiC Power ModulesNews Release (DOT-247)　　ROHM Launches 2-in-1 SiC Molded Module “DOT-247”News Release (TRCDRIVE pack™)　　ROHM’s New TRCDRIVE pack™ with 2-in-1 SiC Molded Module: Significantly Reduces the Size of xEV Inverters　　EcoSiC™ BrandEcoSiC™ is a brand of devices that utilize silicon carbide (SiC), which is attracting attention in the power device field for performance that surpasses silicon (Si). ROHM independently develops technologies essential for the evolution of SiC, from wafer fabrication and production processes to packaging, and quality control methods. At the same time, we have established an integrated production system throughout the manufacturing process, solidifying our position as a leading SiC supplier.・TRCDRIVE pack™ and EcoSiC™ are trademarks or registered trademarks of ROHM Co., Ltd.・LTspice® is a registered trademark of Analog Devices, Inc.When using third-party trademarks, please adhere to the usage guidelines specified by the rights holder.
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Release time：2026-03-18 11:35 reading：519 Continue reading>>
<span style='color:red'>ROHM</span>’s New Compact, Highly Reliable Package Added to Automotive 40V/60V MOSFET Lineup
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ROHM’s New Compact, Highly Reliable Package Added to Automotive 40V/60V MOSFET Lineup

　　ROHM has expanded its lineup of low-voltage (40V/60V) MOSFETs for automotive applications – such as main inverter control circuits, electric pumps, and LED headlights – by introducing latest products adopting the new HPLF5060 package (4.9mm × 6.0mm).　　In recent years, automotive low-voltage MOSFETs have been trending toward smaller packages, such as the 5060-size and even more compact options. However, this miniaturization introduces significant challenges for achieving reliable mounting, primarily due to narrow terminal spacing and leadless designs.　　To address these issues, the new HPLF5060 package offers a smaller footprint compared to the widely used TO-252 package (6.6mm × 10.0mm) while enhancing board-mount reliability through the adoption of gull-wing leads. Additionally, the use of copper clip junction technology enables high-current operation, making the HPLF5060 an ideal solution for demanding automotive environments.　　Mass production of new products using this package began in November 2025 (sample price: $3.5/unit, excluding tax).　　In addition to expanding the lineup of products using this package, mass production of the smaller DFN3333 (3.3mm × 3.3mm) package, which employs wettable flank technology, is scheduled to begin around February 2026. Furthermore, development has commenced on a TOLG (TO-Leaded with Gull-wing) package (9.9mm × 11.7mm) to further expand the lineup of high-power, high-reliability packages.　　☆ : Under Development　　Application Examples　　Main inverter control circuits, electric pumps, LED headlights, etc.　　EcoMOS™ Brand　　EcoMOS™ is ROHM's brand of silicon power MOSFETs designed for energy-efficient applications in the power device sector. Widely utilized in applications such as home appliances, industrial equipment, and automotive systems, EcoMOS™ provides a diverse lineup that enables product selection based on key parameters such as noise performance and switching characteristics to meet specific requirements.　　・EcoMOS™ is a trademark or registered trademark of ROHM Co., Ltd.　　Terminology　　Gull-Wing Leads　　A terminal structure that spreads outwards from both sides of the package. It achieves excellent heat dissipation along with increased mounting reliability. It is called “Gull-Wing” because its appearance resembles the wing of a seagull.　　Copper Clip Junction Technology　　A technology that uses copper clips (flat metal bridges) to connect chips and lead frames directly, replacing the conventional wire bonding method.　　Wettable Flank Technology　　A technology for plating the sides of the lead frame on bottom electrode packages such as QFN and DFN to improve mounting reliability.
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Release time：2026-02-25 17:46 reading：531 Continue reading>>
<span style='color:red'>ROHM</span>’s New LDO Regulators with 500mA Output Current Achieving Stable Operation Even with Ultra-small Capacitors to Expand Design Flexibility for High-current Applications
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ROHM’s New LDO Regulators with 500mA Output Current Achieving Stable Operation Even with Ultra-small Capacitors to Expand Design Flexibility for High-current Applications

　　ROHM has developed the “BD9xxN5 Series” of LDO regulator ICs with 500mA output current, featuring its proprietary ultra-stable control technology “Nano Cap™”. This series comprises 18 products designed for 12V/24V primary power supply applications used in automotive equipment, industrial equipment, and communication infrastructure.　　In recent years, electronic devices have demanded higher density in smaller form factors at the same time. To meet this demand and achieve space savings and design flexibility, power supply ICs must be capable of stable operation even with small-capacity capacitors. However, achieving such performance with output capacitors of 1µF or less has been technically difficult.　　To address this challenge, ROHM developed the “BD9xxN1 Series” LDO regulator (150mA output current) in 2022, incorporating its proprietary ultra-stable control technology, “Nano Cap™”. This innovation enables stable operation with output capacitors as small as 100nF, earning widespread adoption across numerous applications.　　The newly developed BD9xxN5 Series builds on the success of the BD9xxN1 Series by increasing the output current to 500mA – more than three times higher than before – significantly broadening its suitability for applications requiring higher power. In addition, very low output voltage ripple of approximately 250mV (with load current variation of 1mA to 500mA within 1µs) is achieved with a small output capacitance of just 470nF (typical). Beyond standard small MLCCs (multi-layer ceramic capacitors) in the range of several µF and large-capacity electrolytic capacitors, it also supports ultra-small MLCCs, such as the 0603M size (0.6mm × 0.3mm), with capacities below 1µF – where stability was previously difficult to achieve. This contributes to space saving as well as greater flexibility in component selection.　　Furthermore, high-precision SPICE models, “ROHM Real Model” are provided for accurate simulation and can be downloaded from the ROHM official website.　　SPICE Models: BD900N5xxx-C BD933N5xxxx-C BD950N5xxxx-C　　ROHM will continue to contribute to the high performance, miniaturization, and high reliability of electronic devices by further expanding its Nano Cap™ technology-equipped LDO series.　　Application Examples　　Automotive Equipment　　● Powertrain system power supplies for fuel injection systems (FI) and tire pressure monitoring systems (TPMS)● Body system power supplies for body control modules (BCM)● Infotainment system power supplies for clusters ad head-up displays (HUD), etc.Industrial Equipment　　● Power supplies for controllers like Programmable Logic Controllers (PLC), Remote Terminal Units (RTU), and industrial gateways● High-precision LDOs for analog loads and sensors measuring temperature, pressure, flow rate, etc.● Power supplies for monitoring and control panels in disaster prevention systems, access control systems and building automation.● Standby power supplies for Human-Machine Interfaces (HMI) and panel equipment, etc.Consumer Electronics　　● Power supplies for control boards in refrigerators, dishwashers, air conditioners, etc.● Power supplies for home appliances like thermostats and doorbells● Power supplies for constant power applications in home security and network equipment, etc.　　What is Nano Cap™ Technology?　　Nano Cap™ refers to ultra-stable control technology achieved by combining advanced analog expertise covering circuit design, processes, and layout utilizing ROHM’s vertically integrated production system. Stable control eliminates the problem of unstable operation related to capacitors in analog circuits, contributing to a reduction in design resources for a wide range of applications in automotive, industrial equipment, consumer, and other fields.　　Terminology　　Primary　　In a power supply circuit, the side in charge of 1st stage conversion from a power source such as a battery is called the primary and the side responsible for 2nd stage conversion is referred to as the secondary.　　LDO Regulator (Low Drop Out Regulator / Low Saturation Regulator)　　A type of power supply IC that converts between two different DC voltage levels. Falls under the category of linear regulator (where the input/output voltages operate linearly) characterized by a small input-output voltage difference. Compared to DC-DC converter ICs (switching regulators), LDOs feature a simpler circuit configuration and lower noise.　　ROHM Real Model　　A high-accuracy simulation model that make it possible to also achieve a perfect match between the actual IC and simulation values utilizing ROHM’s proprietary model-based technology.
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Release time：2026-01-27 13:47 reading：603 Continue reading>>
Industry’s Highest* Rated Power! <span style='color:red'>ROHM</span> Unveils the UCR10C Series of Sintered Metal Shunt Resistors
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Industry’s Highest* Rated Power! ROHM Unveils the UCR10C Series of Sintered Metal Shunt Resistors

　　ROHM has developed the “UCR10C Series”, which has the industry's highest rated power for 2012-size shunt resistors (10 mΩ to 100 mΩ).　　Shunt resistors are required to handle higher power for current sensing in both the automotive and industrial equipment markets. Additionally, specific requirements for high junction reliability in these markets has increased annually.　　ROHM’s new products form a copper-based resistive element on an alumina substrate via sintering. By optimizing the heat dissipation structure, it achieves rated powers of 1.0W and 1.25W-double that of equivalent-sized products including thick film types and metal plate types. This enables the replacement of products with wide terminal types or larger alternatives, facilitating miniaturization and reducing the number of components required.　　Furthermore, the use of a metal resistive element achieves a low TCR (0 to +60 ppm/°C). This minimizes errors due to temperature changes, enabling high-precision current sensing. Moreover, it achieves the same level of durability as the metal plate types in temperature cycle testing (-55°C / +155°C, 1000 cycles). This ensures high bonding reliability even in applications with extreme temperature fluctuations, such as automotive use, enabling stable, long-term operation.　　This series is fully lead-free. No lead materials are present, even in RoHS-exempted areas, thus reducing environmental impact.　　As part of its future expansion plans, ROHM has also commenced development of the 3216-size (2W) sintered metal shunt resistor, the “UCR18C Series”, further enhancing its product line-up that combines high power, high precision and high reliability.　　Application Examples　　Various current detection applications in automotive, industrial equipment, and consumer electronics.　　Terminology　　Thick Film Types　　A chip resistor using a material called metal glaze as the resistive element. In addition to cost advantages, the thick film resistive element provides superior resistance to pulses and surges.　　Metal Plate Types　　A chip resistor using a metal plate as the resistive element. It offers superior thermal dissipation and achieves high precision through low TCR, providing performance advantages.　　Wide Terminal Types　　A structure where the electrodes are positioned along the long side of the chip resistor body. Compared to the common structure with electrodes along the short side, it improves heat dissipation efficiency and enables high-power handling.　　TCR (Temperature Coefficient of Resistance)　　An indicator showing how much a resistor's resistance value changes with temperature. A lower value means less resistance variation due to temperature fluctuations, providing more stable performance.　　The TCR of the UCR10C varies depending on the resistance value. Furthermore, the listed TCR is the guaranteed value for the +25/+155°C range for the 10mΩ product.
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Release time：2026-01-22 11:30 reading：1521 Continue reading>>
<span style='color:red'>ROHM</span>’s Flexible Brushed DC Motor Driver ICs for a Wide Range Applications
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ROHM’s Flexible Brushed DC Motor Driver ICs for a Wide Range Applications

　　ROHM has developed two new motor driver ICs for brushed DC motors, BD60210FV (20V, 2ch) and BD64950EFJ (40V, 1ch). They are intended for use in home and office appliances such as refrigerators, air conditioners, printers, and robotic vacuum cleaners.　　In recent years, the electrification of consumer and industrial equipment - especially white goods - has accelerated, increasing the demand for energy-efficient brushed DC motors. At the same time, motor drivers are expected to support multiple applications and use cases while reducing external component count and size.　　To address these needs, these new products adopt highly versatile packages, making them ideal not only for new platform designs but also for redesigns and derivative products. Additionally, they achieve ultra-low standby current (Typ: 0.0μA, Max: 1.0μA), significantly contributing to power savings during standby operation.　　The BD60210FV can function as a dual H-bridge (2ch) motor driver with direct PWM control, capable of driving two DC brush motors, a bipolar stepper motor driver, or solenoid driver. Its H-bridge circuit configuration eliminates the need for a boost circuit, minimizing external components and contributing to space-saving and simplified design. It supports input voltage from 8V to 18V and 1A/phase continuous current and 4A/phase peak current.　　The BD64950EFJ features a single H-bridge (1ch) that supports both direct PWM control and constant current PWM control. Its low on-resistance design reduces heat generation, enabling efficient motor drive. With a 40V withstand voltage and 3.5A continuous current (6A peak), it is suitable for high-powered, high-voltage (24V) DC brush motor applications.　　Both products are now in mass production (sample price: $1.5/unit, tax excluded). Online sales have also started, and they (BD60210FV, BD64950EFJ) can be purchased from online distributors such as AMEYA360. Evaluation boards (BD60210FV-EVK-001, BD64950EFJ-EVK-001) are also available to support application development and design.　　ROHM will continue to expand its motor drive solutions for consumer and industrial equipment, contributing to greater comfort and energy savings in society.　　Application Examples　　•Consumer Equipment: Refrigerators (ice maker rotation, fan valve control), Air conditioners (louver control), Printers (carriage movement), Robotic vacuum cleaners (brush rotation), Water heaters and rice cookers (valve control), Humidifiers (fan control)　etc.　　•Industrial Equipment: Automatic doors and shutters (operation control), Small conveyors (transport control), Power tools (rotation control), Other small motor control applications, etc.　　Terminology　　H-Bridge　　An electronic circuit used to control the rotation direction of a motor. It is called an H-bridge because it comprises four electronic switches (MOSFETs) whose arrangement resembles the letter “H”.　　Direct PWM Control　　A method where a PWM (Pulse Width Modulation) signal is directly applied to the H-bridge to control motor speed. The voltage supplied to the motor is adjusted by the PWM duty cycle. This method offers a simple circuit configuration and high responsiveness.　　Constant Current PWM Control　　A control method that uses PWM to maintain a constant current to the motor. It allows the motor to maintain torque even at low speeds and is used in applications requiring precise control.
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Release time：2025-12-18 15:39 reading：1268 Continue reading>>
<span style='color:red'>ROHM</span> launches SiC MOSFETs in TOLL package that achieves both miniaturization and high-power capability
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ROHM launches SiC MOSFETs in TOLL package that achieves both miniaturization and high-power capability

　　ROHM has begun mass production of the SCT40xxDLL series of SiC MOSFETs in TOLL (TO-Leadless) packages. Compared to conventional packages (TO-263-7L) with equivalent voltage ratings and on-resistance, these new packages offer approximately 39% improved thermal performance. This enables high-power handling despite their compact size and low profile. It is ideal for industrial equipment such as server power supplies and ESS (Energy Storage Systems) where the power density is increasing, and low-profile components are required to enable miniaturized product design.　　In applications like AI servers and compact PV inverters, the trend toward higher power ratings is occurring simultaneously with the contradictory demand for miniaturization, requiring power MOSFETs to achieve higher power density. Particularly in totem pole PFC circuits for slim power supplies, often called “the pizza box type,” stringent requirements demand thicknesses of 4mm or less for discrete semiconductors.　　ROHM's new product addresses these needs by reducing component footprint by approximately 26% and achieving a low profile of 2.3mm thickness – roughly half that of conventional packaged products. Furthermore, while most standard TOLL package products are limited by a drain-source rated voltage of 650V, ROHM's new products support up to 750V. This allows for lower gate resistance and increased safety margin for surge voltages, contributing to reduced switching losses.　　The lineup consists of six models with on-resistance ranging from 13mΩ to 65mΩ, with mass production started in September 2025 (sample price: $37.0/unit, tax excluded). 　　Product Lineup　　Application Examples　　・Industrial equipment: Power supplies for AI servers and data centers, PV inverters, ESS (energy storage systems)　　・Consumer equipment: General power supplies　　EcoSiC™ Brand　　EcoSiC™ is a brand of devices that utilize silicon carbide (SiC), which is attracting attention in the power device field for performance that surpasses silicon (Si). ROHM independently develops technologies essential for the evolution of SiC, from wafer fabrication and production processes to packaging, and quality control methods. At the same time, we have established an integrated production system throughout the manufacturing process, solidifying our position as a leading SiC supplier.• EcoSiC™ is a trademark or registered trademark of ROHM Co., Ltd.　　Terminology　　Totem Pole PFC Circuit　　A highly efficient power factor correction circuit configuration that reduces diode losses by using MOSFETs as rectifier elements. The adoption of SiC MOSFETs enables high voltage withstand capability, high efficiency, and high-temperature operation for the power supply.
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Release time：2025-12-04 17:10 reading：1323 Continue reading>>
<span style='color:red'>ROHM</span> launches RPR-0730: High-Speed, High-Precision Optical Sensor Featuring VCSEL Technology
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ROHM launches RPR-0730: High-Speed, High-Precision Optical Sensor Featuring VCSEL Technology

　　ROHM has developed the “RPR-0730”, analog compact optical sensor, capable of high-precision detection of fast-moving objects. This sensor can be widely utilized in consumer and industrial equipment applications, including printers and conveyor systems.　　As industrial and office equipment becomes increasingly sophisticated and automated, there is a growing demand for improved sensing technology accuracy. In applications such as label printers, material or product transport systems, and copiers, the need for technology that can identify objects more accurately is essential. Moreover, increased speed driven by productivity improvements makes the introduction of high-speed, high-precision optical sensors crucial.　　The RPR-0730 is a compact reflective optical sensor (photo reflector). It employs an infrared VCSEL, which offers higher directionality than LEDs, enabling detection of finer objects. Furthermore, by using a phototransistor with analog output as the receiver, the sensor achieves a response time of 10µs. This dual combination enables high-speed, accurate identification of fine lines as narrow as 0.1mm - previously difficult to detect with conventional LED light sources. As an addition to the existing digital output sensor “RPR-0720” series, RPR-0730 expands capability to applications requiring faster sensing, such as print detection in copiers, label printers, or rotational detection in motors and gears.　　The package is ultra-compact at 2.0mm × 1.0mm × 0.55mm and employs a visible light filtering resin to suppress interference from ambient light or sunlight. This enables stable detection even in environments with varying light conditions, such as factories or outdoors. The sensor can also be easily integrated into equipment requiring installation in small, confined spaces, like inside conveyors or precision instruments, making it suitable for a wider range of applications.　　Mass production of the new product commenced in October 2025 (sample price: $2.2/unit, tax excluded).　　Going forward, ROHM will continue to leverage its development expertise in light-emitting and light-receiving elements to create sensing products that meet customer needs, contributing to the miniaturization and enhanced convenience of various devices.　　Application Examples　　•Print detection, paper feed/jam detection in label printers, copiers, shredders, etc.　　•Object detection of packages/specimens, workpiece position detection in conveyance systems, automatic inspection equipment, etc.　　•Motor/gear rotational detection in industrial robots, etc.　　Terminology　　Photo reflector　　A type of optical sensor combining an emitting element and a receiving element. It illuminates an object and detects the intensity of the reflected light to measure the presence or distance of an object.　　VCSELL　　Abbreviation for Vertical Cavity Surface Emitting LASER. A type of laser light source, it is a semiconductor laser that can emit light directly from its surface. Compared to LEDs, it offers higher directionality and is suitable for high-precision sensing. Originally adopted for optical communication applications, its use as a light source for proximity sensors and distance sensors has been expanding in recent years.　　Phototransistor　　A transistor-type photoelectric conversion element that converts optical signals into electrical signals. It integrates a photodiode and a transistor, controlling the base current with light to output an amplified collector current.
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