ROHM at electronica 2024: Empowering Growth, Inspiring Innovation

Release time：2024-11-05
author：AMEYA360
source：ROHM
reading：231

　　Willich/Munich, Germany, October 10th, 2024 – ROHM Semiconductor Europe is looking forward to electronica 2024 – the world’s leading trade fair and conference for electronic components, systems, applications, and solutions. The event will take place between November 12th to 15th in Munich.

ROHM at electronica 2024: Empowering Growth, Inspiring Innovation

　　At booth C3-520, ROHM will showcase its advanced power and analog technologies designed to enhance power density, efficiency, and reliability in both automotive and industrial applications. These advancements are crucial for addressing the increasing demands of modern electronic systems, particularly in the context of sustainability and innovation.

　　Under the theme "Empowering Growth, Inspiring Innovation," ROHM will highlight via its various demo application stations in “tree style” how its high-quality semiconductor technologies contribute to solving critical social and ecological challenges. The focus will be on driving sustainability in electronic design and innovation, which aligns with the growing emphasis on creating environmentally responsible solutions within the industry.

　　At electronica 2024, the exhibition space has been greatly expanded and the number of items on display has been increased to 30 – more than three times compared to the previous show.

　　The latest solutions will be exhibited under the three themes of “for E-Mobility”, “for Automotive”, and “for Industrial”.

　　For E-Mobility

　　・TRCDRIVE pack™ with 2-in-1 SiC Molded Module to improve the efficiency of traction inverters

　　・New EcoIGBT™ products for electric compressors

　　・New EcoSiC™ Schottky Barrier Diodes for onboard chargers

　　For Automotive

　　・New configurable PMIC with supporting functional safety features for application processors, SoCs and FPGAs

　　・LED Driver ICs for Exterior Lighting / Head Lamps

　　・Advanced solutions on the ADAS cockpit demo

　　For Industrial Equipment

　　・Industrial AC-DC PWM Controller ICs – support a wide range of power transistors from Si MOSFETs and IGBTs to SiC MOSFETs

　　・The EcoGaN™ family of 150V and 650V class GaN HEMTs in several EVKs

　　・Latest R&D project on Terahertz

　　In addition to product showcases, ROHM is committed to fostering technical exchange and collaboration at electronica 2024. "For us, electronica is more than just a showcase – it’s an opportunity to forge new connections, strengthen existing partnerships, and reunite with industry peers," says Wolfram Harnack, President of ROHM Semiconductor Europe. "We are excited to welcome our guests to Munich as we work together to shape the future of electronics."

　　For a sneak peek at which highlights ROHM will present during electronica 2024, visit our event preview page: https://www.rohm.com/electronica

　　TRCDRIVE pack™, EcoIGBT™, EcoSiC™ and EcoGaN™ are trademarks or registered trademarks of ROHM Co., Ltd.

（"Note: The information presented in this article is gathered from the internet and is provided as a reference for educational purposes. It does not signify the endorsement or standpoint of our website. If you find any content that violates copyright or intellectual property rights, please inform us for prompt removal."）

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ROHM’s New PWM Controller ICs with SOP Package for Power Supply in a Wide Variety of Industrial Applications
Trade news

ROHM’s New PWM Controller ICs with SOP Package for Power Supply in a Wide Variety of Industrial Applications

　　ROHM has developed external FET-type controller ICs utilizing PWM current control mode optimized for AC-DC power supply in various industrial applications. Mass production has begun for four variants designed to drive a wide range of power semiconductors: the BD28C55FJ-LB for low-voltage MOSFETs, BD28C54FJ-LB for medium- to high-voltage MOSFETs, BD28C57LFJ-LB for IGBTs, and BD28C57HFJ-LB for SiC MOSFETs.　　Although the global semiconductor shortage is beginning to ease, the supply of semiconductor components for power supplies in industrial applications continues to lag behind demand. This is particularly true for PWM controller ICs, where the limited number of manufacturers has resulted in chronic shortages, leading to numerous requests for product development.　　In response, ROHM has developed PWM controller ICs that address the ongoing supply issue by meeting the industrial market’s stringent package and performance requirements. Depending upon the input AC voltage range of the application, a wide variety of semiconductors are used for power supply circuit. Each of these semiconductors demand different undervoltage lock out levels to prevent thermal runaway in case of supply/gate voltage drop. To solve this issue, ROHM has developed 4 variants with different undervoltage lock out levels.　　The new products feature an input voltage range of 6.9V to 28.0V, circuit current up to 2.0mA, maximum startup current of 75µA, and a maximum duty cycle of 50%, offered in the standard SOP-J8 package (equivalent to the JEDEC SOIC8). The products are pin to pin compatible to standard products commonly used in power supply circuits, thus reducing re-design and modification efforts. All variants are equipped with a self-recovery-type undervoltage lockout function (UVLO) with voltage hysteresis. This significantly improves application reliability by reducing the threshold voltage error to ±5%, compared to the typical ±10% of standard products.　　At the same time, these ICs are designated for long-term supply, thus ensuring continuous operation of long-life industrial equipment. Going forward, the lineup will be further expanded to include products suitable to drive high-voltage MOSFETs and GaN devices. More variants to support a maximum duty cycle of 100% are also being planned.　　Application ExamplesIndustrial equipment: AC-DC power supplies, motor drive inverters, and other AC-powered devices　　Product Information　　Applicable Part Nos: BD28C54FJ-LB, BD28C55FJ-LB, BD28C57HFJ-LB, BD28C57LFJ-LB　　TerminologyPWM Control Type　　Short for Pulse Width Modulation, a method for controlling power using semiconductors. The output power is controlled by varying the ratio of ON and OFF times within a fixed cycle.　　Duty Cycle　　The proportion of ON and OFF times as percentage of the switching period is known as ON- and OFF-duty cycle, respectively. It is common to refer to the ON-time ratio as the duty cycle. Duty Cycle (%) = Pulse Width (t) / Period (T).　　Self-Recovery Undervoltage Lockout Function (UVLO) with Voltage Hysteresis　　This function safety stops IC operation before the circuit inside the IC becomes abnormal when the input voltage drops below a threshold. For self-recovery types, the IC can become unstable by repeatedly stopping and starting near the threshold voltage, so a protection circuit with hysteresis is used to create a voltage difference between the stop and restart points.
2024-10-08 14:42 reading：435
ROHM’s New N-channel MOSFETs Offer High Mounting Reliability in Automotive Applications
Trade news

ROHM’s New N-channel MOSFETs Offer High Mounting Reliability in Automotive Applications

　　ROHM has released N-channel MOSFETs - RF9x120BKFRA / RQ3xxx0BxFRA / RD3x0xxBKHRB - featuring low ON-resistance ideal for a variety of automotive applications, including motors for doors and seat positioning, as well as LED headlights. Sales have begun with 10 models across 3 package types, with plans to expand the lineup in the future.　　The automotive sector is seeing a surge in the number of electronic components, driven by the demand for enhanced safety and convenience. At the same time, there is a pressing need for improved power efficiency to optimize fuel and electricity consumption. Especially for MOSFETs essential for switching applications in automotive systems, there is a growing requirement for lower ON resistance to minimize loss and heat generation.　　ROHM, which has been supplying low ON-resistance MOSFETs for consumer and industrial equipment, has now extended this technology to the automotive sector. Adapting cutting-edge medium voltage processes to meet the stringent reliability requirements of automotive products allowed us to develop 10 N-channel MOSFET models characterized by low ON resistance.　　Offered in voltage ratings of 40V, 60V, and 100V, the new products incorporate a split-gate structure to achieve low ON-resistance, contributing to higher efficiency operation in automotive applications. All models are qualified under the AEC-Q101 automotive reliability standard, guaranteeing exceptional high reliability.　　Users can select from among three package types, depending on the application. For space-constrained sets like Advanced Driver Assistance Systems (ADAS), the compact DFN2020Y7LSAA (2.0mm × 2.0mm) and HSMT8AG (3.3mm × 3.3mm) packages are ideal. For automotive power applications, the widely used TO-252 (DPAK) package (6.6mm × 10.0mm) is also available. In addition, ROHM has further enhanced mounting reliability by utilizing wettable flank technology for the DFN2020Y7LSAA package and gull-wing leads for the TO-252 package.　　Going forward, ROHM plans to expand its lineup of medium-voltage N-channel MOSFETs to provide even greater miniaturization and higher efficiency in automotive applications. Mass production of the DFN3333 (3.3mm × 3.3mm) and HPLF5060 (5.0mm × 6.0mm) packages is scheduled for October 2024, followed by 80V products in 2025. P-channel products are also scheduled for future release.　　Application Examples◇ Vehicle motors (e.g., doors, seat positioning, power windows)　　◇ LED headlights　　◇ Car infotainment / displays　　◇ Advanced Driver Assistance Systems (ADAS)　　Internet Sales InformationOnline Distributors: DigiKey, Mouser and Farnell　　Pricing: $3.50/unit (samples, excluding tax)　　Availability: Now (OEM quantities)　　The products will be offered at other online distributors as they become available.　　(Sales Launch Date: June 2024)　　Online Distributors　　TerminologyON resistance (Ron)　　The resistance value between the Drain and Source while the MOSFET is ON. The smaller this value is, the lower the (power) loss during conduction.　　N-channel MOSFET　　A type of MOSFET that conducts when a positive voltage is applied to the Gate relative to the Source. N-channel MOSFETs are more widely adopted in the market today due to their lower ON-resistance (RDS(on)) over P-channel variants, facilitating use in a broad range of circuits.　　Split Gate Structure　　A technology that divides the gate of the MOSFET into multiple parts to efficiently regulate the flow of electrons. This ensures fast, reliable operation.　　Wettable Flank Technology　　A technique for plating the sides of the lead frame on bottom electrode packages to improve mounting reliability.　　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.
2024-09-24 10:58 reading：438
ROHM's 4th Generation SiC MOSFET Bare Chips Adopted in Three EV Models of ZEEKR from Geely
Trade news

ROHM's 4th Generation SiC MOSFET Bare Chips Adopted in Three EV Models of ZEEKR from Geely

　　ROHM has announced the adoption of power modules equipped with 4th generation SiC MOSFET bare chips for the traction inverters in three models of ZEEKR EV brand from Zhejiang Geely Holding Group (Geely), a top 10 global automaker. Since 2023, these power modules have been mass produced and shipped from HAIMOSIC (SHANGHAI) Co., Ltd. - a joint venture between ROHM and Zhenghai Group Co., Ltd. to Viridi E-Mobility Technology (Ningbo) Co., Ltd, a Tier 1 manufacturer under Geely.　　Geely and ROHM have been collaborating since 2018, beginning with technical exchanges, then later forming a strategic partnership focused on SiC power devices in 2021. This led to the integration of ROHM’s SiC MOSFETs into the traction inverters of three models: the ZEEKR X, 009, and 001. In each of these EVs, ROHM’s power solutions centered on SiC MOSFETs play a key role in extending the cruising range and enhancing overall performance.　　ROHM is committed to advancing SiC technology, with plans to launch 5th generation SiC MOSFETs in 2025 while accelerating market introduction of 6th and 7th generation devices. What’s more, by offering SiC in various forms, including bare chips, discrete components, and modules, ROHM is able to promote the widespread adoption of SiC technology, contributing to the creation of a sustainable society.　　ZEEKR Models Equipped with ROHM’s EcoSiC™The ZEEKR X, which features a maximum output exceeding 300kW and cruising range of more than 400km despite being a compact SUV, is attracting attention even outside of China due to its exceptional cost performance. The 009 minivan features an intelligent cockpit and large 140kWh battery, achieving an outstanding maximum cruising range of 822km. And for those looking for superior performance, the flagship model, 001, offers a maximum output of over 400kW from dual motors with a range of over 580km along with a four-wheel independent control system.　　About ZEEKRZEEKR was launched in 2021 as the dedicated EV brand of Geely, a leading Chinese automaker that also owns well-established premium brands such as Volvo Cars and Lotus Cars. The name ZEEKR combines ZE, representing ZERO, the starting point of infinite possibilities, E for innovation in the electric era, and KR, the chemical symbol for krypton, a rare gas that emits light when energized. ZEEKR’s philosophy centers on harmonizing humanity, technology, and nature, aiming to redefine the perception of electric vehicles through innovative designs and technologies. The brand has garnered praise in markets outside of China, including in the US and Europe, for its impressive driving performance and range, with plans to expand sales to Western and Northern Europe.　　Please visit ZEEKR's website for more information: https://zeekrglobal.com/　　Market Background and ROHM’s EcoSiC™In recent years, there has been a push to develop more compact, efficient, lightweight electric systems to expand the adoption of next-generation electric vehicles (xEVs) and achieve environmental goals such as carbon neutrality. For electric vehicles in particular, improving the efficiency of the traction inverter, a key element of the drive system, is crucial for extending the cruising range and reducing the size of the onboard battery, heightening expectations for SiC power devices.　　As the world’s first supplier to begin mass production of SiC MOSFETs in 2010, ROHM continues to lead the industry in SiC device technology development. These devices are now marketed under the EcoSiC™ brand, encompassing a comprehensive lineup that includes bare chips, discrete components, and modules. For more information, please visit the SiC page on ROHM’s website: https://www.rohm.com/products/sic-power-devices 　　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.　　EcoSiC™ is a trademark or registered trademark of ROHM Co., Ltd.　　Supporting InformationROHM is committed to providing application-level support, including the use of in-house motor testing equipment Additionally, by clicking on the URL below, users can access various supporting contents on ROHM’s website that facilitate the evaluation and introduction of 4th generation SiC MOSFETs, such as SPICE and other design models, simulation circuits for common applications (ROHM Solution Simulator), and evaluation board information.　　https://www.rohm.com/products/sic-power-devices/sic-mosfet#supportInfo
2024-09-03 10:42 reading：488
ROHM Develops the Industry's Smallest* CMOS Op Amp Optimized
Trade news

ROHM Develops the Industry's Smallest* CMOS Op Amp Optimized

　　ROHM has developed an ultra-compact 1.8V - 5V, rail-to-rail CMOS operational amplifier (op amp) - the TLR377GYZ. It is optimized for amplifying signals from sensors such as temperature, pressure, flow rate, used in smartphones, small IoT devices, and similar applications.　　The size of smartphones and IoT devices continues to decrease - requiring smaller components. To accurately amplify small signals as needed in high precision sensing, op amps must improve low input offset voltage and noise performance while continuing to shrink the form factor.　　The TLR377GYZ succeeds in balancing miniaturization with high accuracy (which has been difficult to achieve with conventional op amps) by further evolving proprietary circuit design, process, and packaging technologies cultivated over many years.　　Op amps’ input offset voltage and noise generation degrade amplification accuracy and can be suppressed by increasing the size of the built-in transistors - but at the expense of miniaturization. In response, ROHM developed proprietary circuits which achieve a maximum offset voltage as low as 1mV without increasing the size of the transistors. In addition, proprietary process technology greatly reduce flicker noise, while ultra-low noise is achieved with an input equivalent noise voltage density of 12nV/√Hz by optimizing the resistive components at the element level. Furthermore, the new product adopts a WLCSP (Wafer Level Chip Scale Package) with a ball pitch of just 0.3mm utilizing original packaging technology. This reduces size by approximately 69% compared to conventional products and 46% over existing compact products.　　The IC-mounted conversion board that can replace SSOP6 packages is also offered to support replacement considerations and initial evaluation. Both the new product and conversion board are available for purchase through online distributors. In addition, the high accuracy SPICE model - called ROHM Real Model - is available on ROHM’s website for verification simulations.　　Going forward, in addition to greater miniaturization and accuracy, ROHM will continue to improve op amp performance by reducing power consumption further utilizing proprietary ultra-low current consumption technology.　　Key Product FeatureA shut down function required by mobile devices is built in, reducing power consumption during standby mode.　　Application Examples• Smartphones, compact IoT devices equipped with measurement sensor amps, etc.　　High Accuracy Simulation Models: ROHM Real ModelsROHM Real Models are new high accuracy SPICE models that utilizes original model-based technology to faithfully reproduce the electrical and temperature characteristics of the actual IC, resulting in a perfect match between the IC and simulation values. This ensures reliable verification, contributing to more efficient application development - for example by preventing rework after prototyping. ROHM Real Models are now available on ROHM’s website.　　TerminologyInput Offset Voltage　　The error voltage that occurs between the input terminals of an op amp.　　Flicker Noise　　Noise inherent to electronic components such as semiconductors. Power is inversely proportional to frequency, so the lower the frequency the greater the power. Also called 1/f noise or pink noise. Other types of noise include thermal (i.e. Johnson-Nyquist, white) noise.　　Equivalent Input Noise Voltage Density　　The value obtained by short-circuiting the input terminals and referring the noise voltage density appearing at the output to the input terminals, i.e., since amplifiers have gain (amplification factor), dividing the output noise voltage density by the gain allows for a fair evaluation of the amplifier’s intrinsic noise characteristics.　　ROHM Real Model　　A high-accuracy simulation model that succeeds in achieving a perfect match between the actual IC and simulation values utilizing ROHM’s proprietary model-based technology.
2024-08-13 14:03 reading：457
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