ROHM Semiconductor Automotive Solutions
ROHM Automotive Solutions contribute to the continuing evolution of the automotive sector through a stable, long-term supply of high-quality products. An expansive lineup supports the transition towards increased electrification and connectivity. ROHM can provide optimized solutions to suit various customer needs by focusing on safety, comfort, and the environment.
Applications
- Infotainment/Cluster
- Car navigation
- Car audio
- Head-Up Display (HUD)
- Automotive cluster and LCD monitor
- Body Electronic Control Unit (ECU)
- Body control module
- Door and Mirror control module
- Heating Ventilation and Air Conditioning (HVAC) control module
- Lamp module
- x Electric Vehicles (xEV)
- Main inverter
- Onboard charger
- DC/DC converter
- Battery management system
- Power Train
- Engine control unit
- Electronic Power Steering (EPS)
Automotive Power ebook
Featured Products
ROHM Semiconductor EMARMOUR™ AEC-Q100 CMOS Op Amps
AEC-Q100 qualified input/output rail-to-rail CMOS op amps designed for ultra-high noise immunity.
ROHM Semiconductor BM81810MUV-M Automotive Panel Power Management IC
AEC-Q100 qualified PMIC optimized for display panels used in-car navigation and instrument clusters.
ROHM Semiconductor BV1Hx High Side Switches
AEC-Q100 qualified monolithic PMICs with an integrated CMOS control unit and power MOSFET.
ROHM Semiconductor BU91796BMUF-M AEC-Q100 LCD Segment Driver
AEC-Q100 qualified driver IC, capable of driving up to 80 LCD segments, in a VQFN32FBV050 package.
ROHM Semiconductor R6004PND3FRA 600V N-Channel Automotive MOSFET
AEC-Q101 MOSFET that features low on-resistance and fast switching speed.
ROHM Semiconductor Automotive Gate Drivers
Compact, robust, and reliable isolated gate drivers, optimized for use with SiC power MOSFETs.
ROHM Semiconductor AEC-Q101 Automotive MOSFETs
Provide automotive support, wide drive type, and support from a small signal to high power.
ROHM Semiconductor Automotive Ignition IGBTs
Collector-emitter saturation voltage is suitable for the ignition coil and solenoid driver circuits.
ROHM Semiconductor Automotive EEPROMs
Support SPI bus interface, serial 3-line interface, and 2-wire I2C interface methods.
ROHM Semiconductor Automotive LDO Regulators & Voltage Trackers
AEC-Q100-qualified devices are ideal for automotive, consumer, and industrial applications.
ROHM Semiconductor Automotive LED Drivers
Broad lineup of step-up boost, Buck-Boost, and constant-current/serial-in parallel-out LED drivers.
ROHM Semiconductor Motor/Actuator Driver ICs
Automotive-qualified ICs geared towards a variety of applications, including power window lifters.
ROHM Semiconductor Automotive Schottky Barrier Diodes
A wide array of high-reliability, low-loss diodes are available in various packages.
ROHM Semiconductor Automotive Switch ICs
Integrate a low ON-resistance MOSFET and multiple protection circuits into one single chip.
ROHM Semiconductor Automotive Switching Regulators
Available from single to multi-channel system power supply configurations for broad compatibility.
ROHM Semiconductor Automotive LEDs
AEC-Q101-qualified SMD LEDs are available in a wide range of colors and packages.
ROHM Semiconductor Multiple Input Switch Monitor ICs
Designed to detect the opening and closing of mechanical switches in automobiles.
ROHM Semiconductor Automotive Full CMOS LDO Regulators
AEC-Q100 High-performance full CMOS regulators with 200mA output and 35µA current consumption
ROHM Semiconductor Power Management ICs for LCD Panels
System power supply for mobile TFT liquid crystal panels.
ROHM Semiconductor BM2LC120FJ-C Automotive IPD 2ch Low Side Switch
An AEC-Q100 qualified device that comes with built-in OCP, TSD, active clamp function.
ROHM Semiconductor Automotive Digital Transistors
AEC-Q101 qualified devices that feature built-in bias resistors and on/off operation.
ROHM Semiconductor Automotive Bipolar Transistors
AEC-Q101 qualified devices for audio frequency small-signal amplifiers and low-frequency amplifiers.
ROHM Semiconductor UDZLVFHTE High Voltage Automotive Zener Diodes
AEC-Q101 compliant diodes that provide superior surge resistance for greater reliability.
ROHM Semiconductor BD9P233MUF-CE2 Automotive DC/DC Converter
Offers an ultra-low quiescent operating current while implementing a 3.3V output.
ROHM Semiconductor R800xxND3FRA N-Channel Automotive Power MOSFETs
Offer low on-resistance, fast switching speed, and come with simple drive circuits.
ROHM Semiconductor RRR0x0P03HZG Small Signal Automotive MOSFETs
Come with built-in G-S protection diodes, lead-free platings, and offer low on-resistance.
ROHM Semiconductor QS6Kx Nch+Nch Automotive MOSFETs
Feature low on-resistance, a built-in G-S protection diode, and are available in TSMT6 packages.
ROHM Semiconductor RRQ030P03HZG P-Channel Automotive MOSFET
Comes in a small TSMT6 package and offers low on-resistance and -30V VDSS.
ROHM Semiconductor BD9S Series Automotive Buck DC-DC Converters
AEC-Q100 Buck Converters with output currents from 0.6A to 4.0A in 3.0mm2 and 2.0mm2 packages.
ROHM Semiconductor BD1693x Half-Bridge Drivers
Feature SPI control, three-mode output control, and low standby current.
ROHM Semiconductor RD3x Automotive N-Channel Power MOSFETs
AEC-Q101 MOSFETs featuring low forward voltage, fast recovery time, and high surge capability.
ROHM Semiconductor PNP Automotive Digital Transistors
Includes built-in resistors offering a convenient digital circuit.
ROHM Semiconductor NPN Automotive Digital Transistors
Automotive digital transistors feature built-in resistors, providing a convenient digital circuit.
Videos
Advanced Driver Assistance
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ROHM develops a range of solutions that are ideal for ADAS ECUs. This includes interface ICs, power supply ICs, and peripheral ICs. These ICs contribute to the evolution of ADAS/autonomous driving.
Body Control Modules
Body Control Block Diagram
The Body Control Module (BCM) Electric Control Unit (ECU) provides centralized control of all body systems, such as interior/exterior lighting, HVAC, doors and mirrors, windows, and wipers. The BCM functionality rapidly expands as vehicle manufacturers transition to electronic systems and control to provide greater comfort, fuel economy, safety, and entertainment features.
High Power Low Ohmic Chip Shunt Resistors
Battery Management System (BMS)
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ROHM has developed a wide range of discrete products such as BMS switches (i.e., MOSFETs, SiC, IGBTs), current detection resistors, and power supply ICs for battery control MCUs. ROHM also provides solutions optimized for next-generation multi-cell BMS applications.
Car Audio
ROHM provides products designed for conventional music sources, such as CDs and radio, and modern plug-and-play devices, like USB and MP3 players. ROHM offers the technology to develop high-fidelity sound processors with optimized user experience.
BD8255MUV System Motor Driver for ODD
DC/DC Converter
The x Electric Vehicle (xEV) is driven by a high-voltage battery and motor instead of the engine. ROHM's DC/DC converter system uses SiC MOSFET, enabling high-speed switching operation and providing high performance and better safety.
Door and Mirror Control Module
The Door and Mirror control module controls the door locks and power windows. Two motors control the side mirrors for adjusting the directions, and another motor is included for folding the mirrors. The door locks and power windows are controlled with the door switch controls.
Electric Compressor
ROHM IGBTs for electric compressors are high-performance, low-loss devices that provide superior short-circuit tolerance.
Electronic Power Steering (EPS)
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Electronic Power Steering (EPS) has seen increased adoption over hydraulic power steering, with most cars equipped with EPS. This eliminates the need for a power steering pump, reducing the weight and overall fuel consumption by around 3%. The EPS also provides better driveability and performance by adjusting the torque via software. The EPS is achieved by detecting the steering position via a torque sensor, and the motor is driven using a gate driver and power transistor combination. To control the feedback motor, the supply current to the motor is detected to achieve motor output torque and position control. Although this represents a solution that uses an MCU, this is also possible with a gate driver controlled by SPI communication.
High Power Ultra Low Ohmic Chip Shunt Resistors
Engine Control Unit
ROHM offers a wide lineup of power supplies that contribute to greater energy savings, miniaturization, and performance in ECUs of all types. ROHM has developed a broad range of automotive-grade discrete products, including IGBTs for ignition control.
Engine Control Unit Of Motorcycle
The engine control is carried out by first detecting the engine's status and the condition of the vehicle, converting them to electrical signals, and then feeding them back to the engine control unit. This helps in the emissions regulations for 4-wheel and 2-wheel vehicles.
eCall
The eCall automatically reports vehicle location with other relevant information in the event of an accident. ROHM offers speaker amps for generating emergency sounds and discrete that ensure stable communication during emergencies.
Gateway Electronic Control Unit (ECU)
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The Gateway ECU connects multiple ECUs with different protocols. ROHM offers a broad lineup of protection elements in addition to communication and power supply ICs that provide low power consumption.
HVAC Control Module
The HVAC (Heating, Ventilation, and Air Conditioning) system cools the interior using a compressor refrigeration cycle and warms by extracting the engine's waste heat from the coolant. This system includes a manual and automatic mode to control the temperature and airflow rate. The noise the blowers produce from the AC or seat heating/cooling fan motors can be reduced by replacing the conventional brushed DC motors with brushless motors. This also improves thermal efficiency.
Head Up Display (HUD)
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The Head-Up Display (HUD) systems are normally mounted on or near the windshield to present useful information to the drivers. This technology improves safety by enabling drivers to view relevant data, such as time, speed, and navigation information, without visual distraction. The HUDs use LCDs as light sources while projecting data on the windshield. The combiner displays the speed, route, and other relevant information.
LED Lamp Module
ROHM offers a broad lineup of driver ICs designed to drive LEDs and is involved in several activities to support the future of automotive lighting. This includes developing controller ICs for Adaptive Driving Beam (ADB) systems that are expected to see widespread use.
Main Inverter/Traction Inverter
The main inverter converts the DC voltage supplied by the battery into a 3-phase AC voltage for driving the motor. Conventional inverters use a combination of IGBTs and diodes. In recent years inverters have used SiC MOSFETs and SiC Schottky Barrier Diodes (SBDs) since they can achieve lower resistance and switching losses. ROHM has been focused on improving performance by reducing ON resistance.
On Board Charger
The onboard chargers are trending towards higher permissible input voltage to meet the need for shorter charge times. As a result, the use of SiC in diodes and MOSFETs is increasing.
Positive Temperature Coefficient (PTC) Heater
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The PTC heater systems integrating IGBTs to switch ON/OFF the PTC heater element are seeing increased adoption. ROHM offers 650V models that support the higher voltage batteries used in EVs/PHEVs.
TFT Cluster and Center Information Display (CID)
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ROHM contributes to energy conservation with various switching and linear regulators for automotive clusters. The computerization of cars and the emergence of Advanced Driver Assist Systems (ADAS) are replacing conventional meters with LCD panels. The instrument cluster (or dashboard) refers to the group of meters and indicators that provides the driver with information concerning the speed, fuel level, and engine oil level.
Vehicle to Everything (V2X)
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The V2X is an emerging radio technology that incorporates various types of communication between cars and traffic-related systems. This includes Vehicle to Vehicle (V2V), Vehicle to Infrastructure (V2I), Vehicle to Pedestrian (V2P), and Vehicle to Grid (V2G). ROHM supports wireless communication by supplying power ICs and discrete optimized ECUs used in V2X systems.
Related Solutions
ROHM Semiconductor Electronic Vehicle (EV) Solutions
Products designed to improve efficiency and performance in state-of-the-art EVs.