Products information

Dec 15,2025

BLDC Motor Control IC (MDF151A) for Thermal / EC Fan Applications Enhances System Stability and Energy Efficiency

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The Core of Efficient Thermal Management: EC Fan Electronic Control Applications

An EC fan (Electronically Commutated Fan) is a type of cooling fan that adopts a high-efficiency brushless DC motor. It offers superior energy efficiency, precise stepless speed control, low noise, and long product life, resulting in significantly improved overall performance. EC fans support AC power input, and some advanced models feature intelligent functions such as speed monitoring and fault alarms. They can also be designed with IP-rated protection, making them suitable for a wide range of harsh environments.

Common application areas of EC fans include:
Industrial Applications: Industrial machinery, refrigerated logistics.
Medical equipments: Refrigeration and cold storage equipment, laboratory devices
HVAC systems: Air conditioning, ventilation, and heating equipment
Others: Energy storage systems, charging stations, electric buses, server cabinet cooling, etc.

In response to these wide-ranging demands, Megawin Technology has introduced the MDF151A motor control IC, specifically designed for EC fans, to help customers rapidly develop competitive end products.

Key Features of the MDF151A IC:
The MDF151A provides a low-cost, compact BLDC motor control MCU solution. It integrates a high-speed Arm® Cortex®-M0 32-bit MCU with a maximum operating frequency of 60 MHz. The chip includes 32 KB high-speed Flash memory and 4 KB SRAM, along with up to 26 GPIO pins (20 configurable as outputs and 6 dedicated for internal pre-driver control), enabling flexible system configurations and meeting diverse application requirements.

In addition, the MDF151A integrates a wide range of peripherals specifically designed for brushless motor control, including:
 1 × 12-bit / 1 MSPS ADC, supporting software-based FOC control
• 2 × analog comparators (COMP)
• 2 × operational amplifiers (OPAMP)
• 1 × 32-bit general-purpose timer
• 3 × 16-bit basic timers
• 1 × 16-bit advanced timer
• 1 × USART interface (supporting UART / SPI communication)


Application Function Block:



MDF Series Spec: 




*Also, you can browse the BLDC product page on Megawin Technology's official website:

MDF Series: https://www.megawin.com.tw/products-sub/BLDC-ARM-Cortex-M0-Line


Feel free to contact one of our dealers, or request one of our sales representatives (
sales@megawin.com.tw)

Megawin Technology Co., Ltd. 

www.megawin.com.tw
*TEL: +886-3-560-1501
*email: sales@megawin.com.tw 

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