Smart Home Audio(325)


KA44170A is a high efficiency single phase motor driver IC with built-in Soft Switching function for low noise operation. An automatic phase adjustment function is provided to optimize the soft switching section and its current, so it is possible to drive the motor with low noise and high efficiency regardless of the type of motor and operating environment with a small number of components. Motor speed is controlled by direct PWM input. With a wide input voltage range of 12V/24V, this IC is most suitable for usage in home appliances, office automation and factory automation (for high speed fan motor < 15krpm) equipment.


PDF iconDate Sheet

Item Performance characteristics
Sub-Family Description Single-phase BLDC motor driver
Control Method APC, PWM softswitching
Control interface PWM
Ron (Ohm) 1.25
Operating Voltage (V) 12V / 24V

Operating ambient temperature[min](°C)


Operating ambient temperature[max](°C)

Package TSSOP14L 4.4x5.0mm Body
Lead Pitch_0.65mm




Recommended Circuit






Support tool

We provide information, evaluation tools, etc. to support your design. Please feel free to contact us.

 Evaluation Board

 KE-KA44170A  - KA44170A  single-phase PWM motor driver evaluation board

The KE-KA44170A is an evaluation board(EVB) equipped with KA44170A integrating MOSFET drivers, which drives a single-phase brushless DC (BLDC) motor by providing 1.6A Peak current in 12V/24V DC rails or battery powered applications.

The EVB enables to verify the function of our patented Auto Phase Control (APC) technology installed in KA44170A.

PDF iconUser Manual


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