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Engineer Column
Product Key Points
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Engineer Column
Five Engineers Talk About New Medium-Power Device Products: Part 1 Development of Bipolar Transistors for Gate Driving in Inverter Circuits for xEVs
Part 2 Fifth-Generation -40 V/-60 V P-channel Power MOSFETs with Greatly Reduced On-Resistance
Part 3 Super junction MOSFETs Achieve Low On-Resistance, Fast Switching with High 650 V Voltage Rating
Part 4 Power Diodes Achieve Improved Heat Dissipation Performance, Compactness through Adoption of PMDE Package
Part 5 The DFN2020WF Package, Developed for External MOSFETs for Automotive Primary Power Supply ICs
Harmonizing Circuit Design and EMC Design: Introduction
Part 1 Summary of Semiconductors (1) Transistors and Diodes
Part 2 Summary of Semiconductors (2) Semiconductor Integrated Circuits (LSIs, ICs)
Part 3 Summary of Semiconductors (3) Semiconductor Integrated Circuit (LSI, IC) Modules
Part 4 Product Specifications (1) Product Specifications of Semiconductor Integrated Circuits
Part 5 Product Specifications (2) ?How to Read Product Specifications
Part 6 Product Specifications (3) Examples of General EMC Evaluation Indexes
Part 7 Evaluation Circuits and Boards (1) Using Evaluation Boards
Part 8 Evaluation Circuits and Boards (2) Handling of Ground Wires (GND)
Part 9 Evaluation Circuits and Boards (3) Electromagnetic Interference (EMI) and Electromagnetic Susceptibility (EMS)
Part 10 Websites (1) The Latest Information, Introduction of Major Products, Product Specs
Part 11 Websites (2) Application Notes and Design Models
Part 12 Websites (3) Design Support Tools
Part 13 EMC Overview (1) What is Electromagnetic Compatibility?
Part 14 EMC Overview (2) What is Electromagnetic Compatibility?
Part 15 EMC Overview (3) What is Electromagnetic Compatibility?
Part 16 EMC Calculation Methods and EMC Simulations (1): Overview of Calculation Methods
Part 17 EMC Calculation Methods and EMC Simulations (2): Trial Calculation of Conducted Emissions (CE)
Motor Notes : Evolution and Kinds of Motors
Motor Notes : Features and Selective Use of Sensored and Sensorless Driving of Brushless Motors
Motor Notes : The Role of Brushless Motor Position Sensors and Notes on Their Placement
Motor Notes : Absolute Maximum Ratings of Motor Drivers
Motor Notes : Output Current of Motor Drivers in Actual Use
Motor Notes : Method of Calculating the Power Consumption of a Brushed Motor Driver: Part 1
Motor Notes : Method of Calculating the Power Consumption of a Brushed Motor Driver: Part 2
Motor Notes : Methods for Easily Driving Brushed DC Motors
Motor Notes : Motor Constant-Current Operation through PWM Driving
Methods and Differences in Current Regeneration for PWM Driving of Brushed Motors
Product Key Points
600 V IGBT IPM: BM6437x Series Simultaneously Achieve Industry-Leading Low Noise and Low Losses for Inverters Used in Home Appliances, Small Industrial Equipment–Features–
Simultaneously Achieve Industry-Leading Low Noise and Low Losses for Inverters Used in Home Appliances, Small Industrial Equipment –Specifications–
200 V Schottky Barrier Diodes:RBxx8BM200 / RBxx8NS200 : Replaces FRD in 200 V Applications, for Improved Efficiency, Space Savings
Successful Development of “Third Generation In-wheel Motor with Wireless Power Transfer During Travel” : Ultra-Compact SiC Module Contributes to Realization of EV with No Charging Worries
Development of the BD71850MWV Power Management IC for the NXP i.MX 8M Nano Family : A 12-Output PMIC for i.MX 8M Nano Family
Newly Developed Compact GMR50 Current Detection Chip Resistor (Shunt Resistor) with High Rated Power : Industry-Highest 4W Rated Power from 5.0×2.5 mm Device
Non-Isolated Gate Drivers and Power Devices
Free Web-Based Simulation Tool “ROHM Solution Simulator” : Power Devices and Driver ICs Verified Simultaneously, for Dramatic Reduction of Development Efforts and Time
Industry’s First Single-Chip LED Driver BD18336NUF-M Enables Safe Lighting Under Low Onboard Battery Conditions : Miniaturization of the Latest Socket-type LED Lamps for DRLs, Position Lamps
Nano Cap™ Technology Enabling Stable Control with Nano-order Output Capacitances : Realization of a Linear Regulator that Effectively Eliminates Output Capacitors
Development of 4th-Generation SiC MOSFET, Achieving Industry’s Lowest On-Resistance : Support for xEV/EV Main Inverters, Higher Battery Voltages
SCT2H12NZ:1700 V High Voltage SiC-MOSFET : Delivering High Voltage and Low Loss Sought in Auxiliary Power Supplies for Industrial Equipment
Combining with SiC AC-DC Converter Control IC Greatly Boosts Efficiency
“Full SiC” Power Modules Using ROHM’s Own SiC-MOSFET and SiC-SBD : Smaller Equipment Sizes through Reduced Switching Losses and Higher-Frequency Operation
Third-Generation SiCMOSFET Adopted, Expanding Lineup
CMOS LDO Regulator with World’s Smallest Package for Automotive Use : 55% Smaller Footprint, Yet Supports AEC-Q100
Ultra-compact Automotive LDOs Feature Low Power Consumption, High Performance and Reliability
600 V Second-Generation Super-Junction MOSFET : EN Series:Improved Noise Performance, While Maintaining Low ON-Resistance, Fast Switching Speed
KN Series:Faster Switching Enabled, While Maintaining Low Noise Performance
3rd Generation SiC Schottky Barrier Diode:SCS3 Series : Enhanced the Surge Current Rating while Maintaining Low Losses, for PFC in High-End Equipment
New Structure in 3rd-Generation Devices for Enhanced Surge Current Robustness, Further Improved VF Characteristics
BD9227F:Step-down DC-DC Converter to Drive DC Fan Motor : Integrated Discrete Components for Higher Precision, Efficiency and Smaller Size
Efficiency, Compactness Paired with Industry-First High-Precision Speed Control of DC Fan Motors
Power Supply ICs on Small-lot 250-piece Tape & Reel Optimized for Industrial Equipment : 3 Series of LDO Regulators Cover a Wide Range of Applications
DC-DC Converters for Compact High-Efficiency Industrial Equipment
Full-SiC Power Modules:Continually Expanding Lineup : Engineering Innovations to Handle Larger Currents
1200 V, 400/600 A Versions Added, With Even Lower Losses and Smaller Sizes
The New R60xxMNx Series Lineup of PrestoMOSTM with Industry-Fastest trr : Cutting the ON-resistance and Qg to Lower Power Consumption Even Further
Enhanced Short-Circuit Capacity, Suppressed Self-Turn-On
BD9V100MUF-C:A DC-DC Converter with the Industry’s Highest Step-Down Ratio : The Advantage of a 24:1 Step-Down Ratio at 2 MHz
DC-DC Converter IC with the Industry’s Highest Step-Down Ratio at 2 MHz
Provision of ROHM’s Unique Nano Pulse Control®
Wettable Flank Packages Provide Visual Confirmation of the Soldered State
BU33UV7NUX:Optimal Boost DC-DC Converter for Dry Cell Applications : Making Dry Cells Last 1.3 Longer
High Efficiency Over a Wide Load Current Range Through Load Current Mode Switching
BD70522GUL:DC-DC Converter Attaining Industry-Lowest 180 nA Current Consumption : Outstanding Functions Installed in an Ultra-Small Package
Coin Battery Operates for 10 Years through Nano EnergyR Technology
AC-DC Converter IC with Internal Power MOSFET : Clearing the New Energy Star v. 6.0 Standard
Perfect Fit for Diverse Applications
RGTV/RGW Series of 650 V IGBTs:Combining Industry-Leading Efficiency and Soft Switching : Low Conduction Losses, Fast Switching = High Efficiency; Greatly Reduced Overshoot = Fewer Suppression Components
BD9S Series:Ultra-small Step-down DC-DC Converters for Automotive, ADAS Applications with Power-good Pin : Wettable-Flank QFN Package Adopted in 2A/3A/4A Versions with SLLM™ Control
Ultra-small Packages 2 mm On a Side 1 A/0.6 A Versions with Internal Phase Compensation Circuits
BSM250D17P2E004: High-Reliability 1700 V Full-SiC Power Module: The Industry’s Highest Level of Reliability in High-Temperature, High-Humidity Environments
SiC MOSFETs Conforming to the AEC-Q101 Automotive Reliability Standard: 10 SiC MOSFET Models for Automotive Use Added, Completing the Industry’s Most Extensive Lineup
Int’l Automotive Electronics Technology Expo (CAR-ELE JAPAN) 2019 : DC-DC Converter Solutions that Meet CISPR25 Class 5 Standards
600V SJ-MOSFET:R60xxJNx Series : PrestoMOS™ Boosts Design Freedom While Affording Industry-Fastest Reverse Recovery Time
World’s First AC-DC Converter ICs with 1700V Internal SiC MOSFET : Easily Attain Dramatic Compactness, Energy Savings, Efficiency in Power Supplies for AC 400 V Industrial Equipment
RGS Series:1200 V IGBTs Conforming to AEC-Q101 for Automotive Use : Increasing Demand for Automotive IGBTs with Lower Conduction Losses, Higher Rated Voltages
BD83070GWL Buck-Boost DC-DC Converter Achieves Amazing Power Savings Performance : High Efficiencies at All Load Levels Maximized Operating Times of Battery-Driven Equipment
SiC MOSFETs Adopting 4-pin Packages:SCT3xxx xR Series : Switching Losses Cut 35% Through Adoption of 4-Pin Packages
Silicon Diodes Continue to Evolve, Driven by Applications | Si Fast-Recovery Diodes : Emphasis on Efficiency and Rated Voltage/Leakage Current
Diodes for Low-Power and for High-Power Applications
The Key to Reduced Loss and Miniaturization in Power Applications : SiC-SBDs Offer Lowest Losses among Power Diodes
SiC-SBD Lineup Includes Automotive Products Rated at 650/1200V, 5 to 40A
BD9G341AEFJ:DC-DC Converter Achieves Industry-Leading 80 V Rated Voltage, High Efficiency : 1-Channel Step-Down DC-DC Converter Incorporates High-voltage, Low On-resistance MOSFET
Positioning and Target Market of 80 V Rated DC-DC Converter ICs
“High Voltage Rating of 80V “, “High Efficiency”, “High Reliability”, and “Compactness”
Automotive LDO regulator BD4xxMx series /BDxxC0A series : Why the LDO Series can be Specified as “Automotive”
Variety is the Key to Versatility as a Series
Accomplishments in Power Saving and Miniaturization
Switching Regulator Controllers Compatible with FPGA Power Supply Requirements : Adopted into Xilinx 7 Series FPGA Power Supply Module
Switching Regulator Controllers Compatible with FPGA Power Supply Requirements : Reasons for the need for higher accuracy FPGA power supply
“H3Reg”, a Key Technology for Fast Transient Response
New lineup of LDO linear regulators, covering all 91 products! : Required Elements that Make Up a Standard Part
Factors that Determine the Actual Output Current
BD905xx-C series synchronous rectifier converter for automotive secondary power supplies : Increasing Requirements Not Met by LDO
DC-DC converter family with an extensive lineup enhancing convenience : “Best Fit for Each Application” is Mandatory
The Ideal Situation:Family of Versatile Lineup of Products
Answering the Latest Performance Requirements
Lineup of Over 220 Motor Driver ICs : Brushed DC Motor Driver ICs Offer Diverse Functions, Highly Efficient Driving
Automotive Motor Driver
Remarkable Quietness through Intricate Control Functions and a Novel Control Method Single-Phase Brushless DC Motor Driver IC
3-Phase Brushless DC Motor Driver IC Features Low Noise and Low Vibration through Sinusoidal Driving
Quietness, Reliability through Control Optimization Stepping Motor Driver IC
In-Series Pin Compatibility, High Efficiency Through Advance Angle Control Functions 250 V/600 V High-Voltage 3-Phase Brushless DC Motor Driver ICs
An Extensive Lineup of Camera Lens Driver ICs to Meet All Needs
Almost No Measurement Equipment Needed for Stepping Motor Application Development
Ask Direct to Engineers
Optimization of Frequency Characteristics of a DC-DC Converter in the Design Stage : Evaluating Frequency Characteristics to Check Output Stability and Response
Method of Setting Phase Compensation and Use of Simulations -Part 2-
Another Important Issue after Miniaturization, Efficiency Enhancement, EMC:Thermal Design : Thermal Design Encounters Strong Headwinds due to Engineering Trend Changes
Overall Thermal Design Must be Based on Common Understanding of the Engineering
Industry Top-Class DC-DC Converter Enabling 80V and High Efficiency : High-Voltage DC-DC Converter to Enter the Market
High Voltages Alone Do Not Resolve User Problems
Photocoupler-Free Isolated Flyback DC-DC Converter : Liberation from Photocoupler Maintenance in a Compact, Simple Design
Method for Regulating the Secondary by Controlling the Primary
Development Predicated on Uses in Industrial Equipment
Unique Adaptive On-Time Control Greatly Improves Transient Response of Isolated Power Supplies
DC-DC Converter IC Capable of Direct Step-Down from 48 V to 3.3 V : Is Direct Step-Down from 48 V to 3.3 V Possible?
Simplifying the Power Supplies of 48V Hybrid Systems to Cut Losses
What capacitor and inductor are the best for a switching power supply? – Inductor- : Reading and Understanding Inductor Specifications and Equivalent Circuits
Features of Various Power Inductors
Matters for Study in Power Supply Circuits
Metal Inductors and Trends in Power Supplies
Summary of Inductors and Overall Conclusion
3rd Generation SiC Schottky Barrier Diode:SCS3 Series : Continuing Evolution of SiC Schottky Barrier Diodes
Improved Efficiency and Safety Margins in Equipment Designed for High Reliability
Engineering Trends in Power Supplies to Reduce Environmental Load : Efficiency Improvements in AC-DC Converters Now an Absolute Imperative
Improving the Efficiency of AC-DC Converters through Synchronous Rectification
Technology for Industrial Waste Reduction: Wireless Supply of Power
AC-DC Converter Control that Achieves Both Power Factor Correction and High Efficiency : Is Power Supply Efficiency Always Reduced When a PFC Circuit is Added?
Two New Control Methods to Achieve Both PFC and High Efficiency
SiC MOSFETs Adopting 4-pin Packages:SCT3xxx xR Series : Reasons for Adopting 4-pin Package
Switching Losses Slashed 35% Using Driver Source Pin
What capacitor and inductor are the best for a switching power supply? – Capacitor – : Increasing Capacitance of Multilayer Ceramic Chip Capacitors
In the evaluation of output ripples, ESL for output capacitor requires particular attention
ESR of the Output Capacitor Exerts a Significant Impact on Output Fluctuation at Decreased Load
Issues Relating to Mounting: Cracking
Issues With Mounting -Audible Ringing-
Summary
Need to Know not Only Electrical Specs, But Also Their Characteristics Including Materials and Packaging Cases
In Selecting an Input Capacitor, Focus on the Ripple Current, ESR, and ESL
Industrial-grade step-down DC-DC converters providing long-term supply guarantee and available in small-reel sales : Routine Requirements in Industrial Applications: Long-Term Supply Guarantee and Small-Lot Sales
The Leading-Edge Synchronous Rectifying Converter Holds the Key to Power Savings and Downsizing for Industrial Equipmet
Automotive general-purpose LDO regulator series offering a total of 43 models : There is a Reason for Extensive Variety as Many as 43 Models
In What Ways are ROHM’s “Automotive” Regulators Different?
A Simple LDO with No Shortcuts When It Comes to Power Saving and Miniaturization
Step-Down DC-DC Converter Series Compatible with Stringent FPGA Power Supply Requirements : Power Requirements of the FPGA
Coping with FPGA Power Supply Requirements
The BM2Pxxx Series High Efficiency AC-DC Converter IC with Internal MOSFET : Issues Confronting Existing AC-DC Converters: Efficiency and Size
Original Super-junction MOSFETs Hold the Key
Freedom of Design and Conformance to the New Energy Star v. 6.0 Standard
ICs Developed for Problem Resolution
Synchronous rectification step-down DC-DC converters developed as automotive secondary power supplies : Greatly Improved Efficiency and Supplied Power, with Number of Components and footprint comparable to LDO regulators
Advantages of Secondary Power Supplies in Automotive Equipment
New Articles
Simultaneously Achieve Industry-Leading Low Noise and Low Losses for Inverters Used in Home Appliances, Small Industrial Equipment –Specifications–
2023/05/24
600 V IGBT IPM: BM6437x Series Simultaneously Achieve Industry-Leading Low Noise and Low Losses for Inverters Used in Home Appliances, Small Industrial Equipment–Features–
2023/05/24
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Technology Trends
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