Flexible brushed DC motor driver ICs suit a wide range of applications

ROHM has developed two new motor driver ICs for brushed DC motors, BD60210FV (20V, 2ch) and BD64950EFJ (40V, 1ch). They have been developed 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, particularly 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 decreasing external component count and size.

To manage 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. Also, they achieve ultra-low standby current (Typ: 0.0µA, Max: 1.0µA), greatly 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, minimising 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 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.