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Motor Drivers

Product catalog summary

Overview: The document provides a comprehensive overview of ROHM's motor driver ICs and peripheral parts, focusing on enhancing internal protection capabilities, optimizing drive waveforms, and reducing power consumption. It highlights the integration of functions to prevent malfunctions and protect against abnormal voltages and currents, along with current limiting functions for safety.

Specifications and Features: ROHM's motor drivers are designed with four key characteristics: high reliability, low power consumption/high efficiency, control/convenience, and silent operation/low vibration. The document details the implementation of commutation drive technologies, current attenuation methods, and automatic angle adjustment functions to optimize performance across various applications.

Technological Innovations: The document discusses the development of high-efficiency drive control algorithms, including sensorless position control, digital motor rotation control, and high accuracy positioning control technologies. These innovations aim to maximize hardware implementation and improve convenience through compatible package pin designs.

Product Lineup: The document includes an index of various motor driver types, such as Brushed DC Motor Drivers, Stepper Motor Drivers, Single-Phase and 3-Phase Brushless DC Motor Drivers, and Automotive Motor Drivers. It also covers detailed power device lineups, gate drivers, power devices, and shunt resistors.

Applications: ROHM's motor drivers are applicable in a wide range of devices, including air conditioners, refrigerators, vacuum cleaners, washing machines, printers, power tools, water heaters, and mobility solutions like AGVs (Automatic Guided Vehicles).

Selection and Compatibility: The document provides a motor driver selection map and quick search guide, highlighting models with pin and function compatibility. It emphasizes the importance of maintaining compatibility even when load specifications change during motor development.

3-Phase Brushless DC Motor Drivers: The document provides detailed information on ROHM's 3-phase brushless DC motor drivers, which are compatible with both sensorless motors and motors equipped with Hall sensors. These drivers support a range of voltages including 3.3V, 5V, 12V, 24V, and 48V, and some models include a built-in speed control function.

Specifications: The motor drivers utilize a sine wave drive method for low noise operation from startup to normal rotation. The document lists various models such as the BM62xxxMUV and BM64xxxMUV series, along with their specifications including operating voltage range, output current, and package type.

Advanced Features: Some models, like the BM64070MUV, include a resistor-based slew rate adjustment function to reduce the need for external components. The document also discusses the advance angle control function to maximize motor efficiency by aligning the phases of the magnetic fields.

High Voltage Drivers: ROHM offers high voltage 3-phase brushless DC motor drivers suitable for home appliances. These drivers support different voltages (250V/600V), commutation angles, and currents, and include protection functions like UVLO, TSD, and OCP.

Intelligent Power Modules (IPMs): The document describes ROHM's IPMs, which integrate high-efficiency control circuits with low-loss power devices. The lineup includes both IGBT and MOSFET types, with features like built-in bootstrap diodes and various protection functions.

Additional Components: The document also lists pulse rate converters and 3-phase brushless DC motor controllers, providing specifications such as supply voltage, input frequency range, and conversion ratios.

Automotive Motor Drivers: The document provides detailed technical specifications and functionalities of ROHM's automotive motor drivers, including brushed DC motor drivers, stepper motor drivers, and 3-phase brushless DC motor drivers. These drivers are designed to support various automotive applications by offering multiple channels, high current capabilities, and advanced control features.

Specifications: The motor drivers are available in different configurations, such as half-bridge and full-bridge, and support multiple protection functions like Over Current Protection (OCP), Over Voltage Protection (OVP), Thermal Shutdown (TSD), Under Voltage Lock Out (UVLO), and Thermal Warning (TW). The document lists specific part numbers, their package types, output channels, and electrical characteristics such as supply voltage, output current, and resistance.

Control and Communication: The drivers support various control inputs, including SPI and PWM, allowing for precise speed and direction control. The use of SPI communication facilitates multi-stage settings, optimizing efficiency and reducing the number of external components required.

Applications: These motor drivers are suitable for a wide range of automotive applications, including HVAC systems, powertrain systems, infotainment systems, and more. They are designed to drive multiple motors or solenoids independently, supporting complex automotive systems.

Advanced Features: The document highlights features like stall detection without external sensors, achieved by monitoring back EMF voltage, and the ability to set predriver output current and simultaneous ON prevention time via SPI communication. These features contribute to improved design efficiency and miniaturization of electronic control units (ECUs).

Performance and Reliability: The motor drivers are automotive-grade, compliant with AEC-Q100 standards, ensuring high reliability and performance under automotive operating conditions. The document also discusses the startup sequence optimization for sensorless motor drivers, which reduces startup time during cranking tests.

Catalog excerpts

Motor Driver ICs and peripheral parts Motor Drivers

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Motor Drivers Four characteristics are required for motor drivers High Reliability High Reliability ROHM is further strengthening the internal protection capabilities of its motor drivers, such as by integrating functions that prevent malfunctions due to voltage drop and protecting the IC from abnormal voltages and currents. We are also implementing a current limiting function that controls the motor current at startup, during forced stops, and when locked. In addition, function pins are provided that output fault conditions to an external host processor, ensuring a greater level of safety. Silent...

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Index Motor Driver Selection Map Motor Driver Quick Search Brushed DC Motor Drivers Stepper Motor Drivers Single-Phase Brushless DC Motor Drivers 3-Phase Brushless DC Motor Drivers (120° Commutation) 3-Phase Brushless DC Motor Drivers (Sine Wave Commutation) High Voltage 3-Phase Brushless DC Motor Drivers IPMs (Intelligent Power Modules) Gate Driver + Power Device Detailed Power Device Lineup Shunt Resistors Motor Driver Solutions Board Automotive Motor Drivers Low Voltage DC Motor Drivers Selection by Application Air Conditioners Refrigerators Vacuum Cleaners Washing Machines Printers Power...

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Motor Driver Selection Application Voltage Output Current Motor Driver Brushed DC Motor Drivers Stepper Motor Drivers Single-Phase Brushless DC Motor Drivers Brushed DC Motor Drivers Stepper Motor Drivers Single-Phase Brushless DC Motor Drivers 3-Phase Brushless DC Motor Drivers Gate Driver + Power Device Single-Phase Brushless DC Motor Drivers 3-Phase Brushless DC Motor Drivers Brushed DC Motor Drivers Stepper Motor Drivers 3-Phase Brushless DC Motor Drivers High Voltage 3-Phase Brushless DC Motor Drivers IPMs (Intelligent Power Modules) ▶P.20 Power Device Shunt Resistors Introducing shunt resistors...

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Low Voltage DC Motor Drivers ▶P.31 Introducing low voltage motor drivers (i.e. lens drivers for cameras) Introduces the use of motor drivers in a variety of sets, from home appliances such as AC and washing machines to AGVs (Automatic Guided Vehicles) and power tools ROHM GROUP Motor Driver

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Motor Driver Quick Search Brushed DC Motor Drivers 1ch Brushed Motor Drivers 2ch Brushed Motor Drivers Automotive Brushed Motor Drivers Models with the same symbol in front of the part number indicate pin-compatible products. The peak output current is indicated after the @ mark. PreDriver Motor Drive Supply Voltage (V)

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Stepper Motor Drivers CLK-IN Selectable CLK-IN/PARA-IN Models with the same symbol in front of the part number indicate function-compatible products. The drive method is indicated after the @ mark. BD63740FM@1/16 step drive BD63731EFV@1/16 step drive BD63860EFV@1/8 step drive BD63524AEFV@1/4, 1/8 step drive ▼BD63525AEFV@1/4, 1/16 step drive BD63725BEFV@1/4 step drive ＊BD6389FM@1/4 step drive BD68620EFV@1/4 step drive ●BD63620AEFV@1/4 step drive ＊BD6387EFV@1/4 step drive ▼BD63520AEFV@1/4, 1/16 step drive ▲BD63521EFV@1/8, 1/16 step drive BD63720AEFV@1/4 step drive ■BD68720EFV@1/4 step drive...

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Motor Driver Quick Search Single-Phase Brushless DC Motor Drivers Sine Wave The speed control input signal (DC, PWM, No Terminal (no speed control terminal))/External output signal pin (FG, AL) are indicated after the @ mark. Motor Drive Supply Voltage (V) ROHM GROUP Motor Driver

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3-Phase Brushless DC Motor Drivers Sine Wave Gate Driver The Hall sensor type/control is indicated after the @ mark (none if not specified). BD63251MUV@Hall 1 BM62300MUV@Hall 3 BM62350MUV@Hall 3/With Control BM62351MUV@Hall 3/With Control BM64300MUV@Hall 3 BM64350MUV@Hall 3/With Control BM64070MUV@Sensorless/With Control BD63003MUV@Hall 3 Motor Drive Supply Voltage (V) High Voltage 3-Phase Brushless DC Motor Drivers Sine Wave Motor Drive Supply Voltage (V) ROHM GROUP Motor Dri

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Brushed DC Motor Drivers (Refer to P.27 for automotive products) ROHM brush DC motor drivers are reversible drivers that operate brush motors using an H-bridge circuit and include functions such as forward/reverse, brake, and PWM drive. These high efficiency, high reliability motor drivers are offered in a range of voltages, currents, and package types—including pin-compatible models. VREF Control Function (VREFPWM) PWM drive at the output stage is enabled by supplying a DC voltage to the VREF pin. Changing the PWM ON duty based on the supplied DC voltage value makes it possible to control motor...

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Brushed DC Motor Driver Lineup 3.3V/5V Applications Part No. Output Current (A) [Peak Current (A)] Current Limiting Supports High-Speed Drive Supports High-Speed Drive *1: Pulse width tw=100ms, Duty ≤ 10% of pulse *2: Pulse width tw=100ms *3: Pulse width tw=100ms, Duty <5% of pulse Output Current (A) [Peak Current (A)] Current Limiting *1: Pulse width tw=100ms, Duty ≤ 5% of pulse *2: Pulse width tw=100ms, Duty ≤ 20% of pulse 12V Application Current Limiting Supports High-Speed Drive Output Current (A) [Peak Current (A)] Output Current (A) [Peak Current (A)] Current Limiting Supports High-Speed...

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Stepper Motor Drivers (Refer to P.27 for automotive products) ROHM high efficiency, high reliability CLK-/PARA-IN stepper motor drivers are available in a range of interfaces, voltages, currents. Pin- and function-compatible models are offered as well. Mix Decay Function When the motor current decays, the followability of the current will worsen depending on the current regeneration mode (Slow/Fast Decay), causing vibration and noise. As a countermeasure, a Mix Decay function is built in that externally adjusts the ratio of Slow Decay and Fast Decay during current attenuation. Current Regeneration...

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Stepper Motor Driver Lineup 5V Application Part No. Supply Voltage (V) Control Block Output Block Output Current Control Input Signal (A) Function compatible* Decay Fast Decay Fast Function compatible* *Models with the same letter are function compatible Supply Voltage (V) Control Block Output Block Output Current Control Input Signal (A) Decay Fast Function compatible* *Models with the same letter are function compatible 12V/24V Applications Supply Voltage (V) Control Input Signal Control Input Signal Function compatible* *Models with the same letter are function compatible Decay Fast Control...

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