For brushed DC motors, ROHM has developed two new motor driver ICs: BD60210FV (20V, 2ch) and BD64950EFJ (40V, 1ch). They are intended for use in home and office appliances such as refrigerators, air conditioners, printers, and robotic vacuum cleaners.
The demand for energy-efficient brushed DC motors has increased recently due to the acceleration of the electrification of consumer and industrial equipment, particularly white goods. Motor drivers must simultaneously reduce the number and size of external components while supporting a variety of applications and use cases.
These new products employ highly flexible packages to meet these needs, which makes them perfect for redesigns and derivative products in addition to new platform designs. They also achieve ultra-low standby current (Typ: 0.0?A, Max: 1.0?A), which greatly reduces power consumption while in standby mode.
With direct PWM control, the BD60210FV can operate as a dual H-bridge (2ch) motor driver that can drive two DC brush motors, a bipolar stepper motor driver, or a solenoid driver. By eliminating the requirement for a boost circuit, its H-bridge circuit configuration reduces the number of external components and helps to simplify and save space. It can handle 1A/phase continuous current, 4A/phase peak current, with input voltages ranging from 8V to 18V.
Both direct PWM control and constant current PWM control are supported by the BD64950EFJ’s single H-bridge (1ch). Because of its low on-resistance design, it reduces heat generation, allowing for an efficient motor drive.
It is appropriate for high-powered, high-voltage (24V) DC brush motor applications because of its 40V withstand voltage and 3.5A continuous current (6A peak).
Both motor driver ICs product are now in mass production (sample price: $1.5/unit, tax excluded). Online sales have also started, and they (BD60210FV, BD64950EFJ) can be purchased from online distributors such as DigiKey, MOUSER and Farnell. Evaluation boards (BD60210FV-EVK-001, BD64950EFJ-EVK-001) are also available to support application development and design.
ROHM will continue to expand its motor drive solutions for consumer and industrial equipment, contributing to greater comfort and energy savings in society.
Key Application
- Consumer Equipment: Refrigerators (ice maker rotation, fan valve control), Air conditioners (louver control), Printers (carriage movement), Robotic vacuum cleaners (brush rotation), Water heaters and rice cookers (valve control), Humidifiers (fan control)?etc.
- Industrial Equipment: Automatic doors and shutters (operation control), Small conveyors (transport control), Power tools (rotation control), Other small motor control applications, etc.
