Rohm Co., Ltd. has rolled out two innovative motor driver ICs engineered for brushed DC motors, the BD60210FV (20V, 2ch) and BD64950EFJ (40V, 1ch). These chips are designed with an eye towards wide-ranging applications in home and office appliances, including refrigerators, air conditioners, printers, and robotic vacuum cleaners.
The move comes in response to the burgeoning electrification of consumer and industrial equipment, particularly in the domain of white goods, which has sparked a rising demand for energy-efficient brushed DC motors. However, the motor drivers in the current market are expected to cater to diverse applications and use cases while concurrently reducing external component count and size.
The BD60210FV and BD64950EFJ not only support a wide array of platform designs but are also apt for product redesigns and derivative products. They ensure ultra-low standby current (Typ: 0.0 microampere, Max: 1.0 microampere), thereby contributing significantly to power savings during standby operation.
The BD60210FV can be utilized 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 obviates the requirement for a boost circuit, thereby minimizing external components, and aids in space-saving and simplified design.
The BD64950EFJ comes with a single H-bridge (1ch) that enables both direct PWM control and constant current PWM control. Its low on-resistance design mitigates heat generation, facilitating efficient motor drive.
Both products are available for purchase online from distributors such as DigiKey, MOUSER and Farnell. Evaluation boards supporting application development and design are also available.
These new ICs will find their applications in a variety of contexts – including but not limited to rotation control in ice makers for refrigerators, louver control in air conditioners, carriage movement in printers and brush rotation in robotic vacuum cleaners, in addition to operation control in automatic doors or shutters and transport control in small conveyors.
Comments are closed.