Melexis, a global microelectronics engineering company, announced the launch of the MLX90411D 800mA driver specifically designed for single coil brushless DC (BLDC) cooling fans. As the latest member of the MLX90411 product family, this device has significantly improved customer configurability, motor control smoothness, and system integration convenience. This innovative product is designed specifically for single coil fans with operating voltages of 5V, 12V, 24V, or 32V, with a wide range of target application areas including consumer electronics (such as gaming devices, personal computers), household appliances (such as refrigerators), and power infrastructure (such as uninterruptible power supplies, energy storage systems).
Cooling fans play an indispensable role in many application scenarios, covering various fields such as gaming consoles, personal computers, refrigerators, uninterruptible power supplies (UPS), and energy storage solutions (ESS). Manufacturers in these markets face a dual challenge: ensuring excellent durability and long-term stability of their products while meeting the increasingly stringent market demand for cost and noise reduction. The MLX90411D precisely addresses the above requirements with a highly balanced strategy: integrating advanced motor control functions in a cost optimized packaging design, while continuing the reliability and excellence that have been proven by the market in practical applications of Mindray.
The core advantage of MLX90411D lies in the use of optimized and upgraded motor control algorithms, which can achieve smoother start and stop operations, effectively reduce acoustic noise, and significantly extend the product's service life. The improved proportional integral (PI) regulation function performs excellently, ensuring stable motor operation even under extremely low speed conditions (below 1000 revolutions per minute). In addition, the product offers multiple start and stop modes to flexibly adapt to the specific needs of different application scenarios; Supporting flexible definition of speed curves further enhances the product's configurability. Users can also freely set the maximum and minimum operating points to achieve more precise airflow control, and effectively reduce power consumption by lowering the minimum fan speed.
To simplify the system design process, the MLX90411D innovatively integrates FG (frequency generator) and RD (rotation detection) output functions, making it easy to achieve system level monitoring without the need for specific models of equipment. This product also offers optional pull-up or pull-down PWM input interfaces, eliminating the need for external inverters, thereby demonstrating higher flexibility in different system architectures, while effectively reducing the number of components in the Bill of Materials (BoM) and lowering system costs. The MLX90411D continues the proven EMC (electromagnetic compatibility) robustness and long-term reliability of the MLX90411 series, and is equipped with comprehensive protection and diagnostic functions, including programmable stall protection (LRP), temperature shutdown (TSD), programmable overvoltage protection (OVP), and short-circuit protection (OCP), providing solid guarantees for the safe and stable operation of the equipment.
MLX90411D adopts the same SOT23-6 package as MLX90411B to ensure complete pin compatibility. This design enables customers to easily migrate their products and use the new IC without the need for a new layout. With its comprehensive advantages in configurability, acoustic performance, cost optimization, and high reliability, the MLX90411D is an ideal choice for the fan market with a power of less than 10 watts. Its wide range of applications includes game console cooling, personal computer cooling, refrigerator cooling, VGA/GPU cooling, as well as 24V/32V industrial fans used in uninterruptible power supplies (UPS), inverters, and energy storage systems.
The MLX90411D combines cost-effectiveness, reliable quality, and new flexibility features, achieving excellent cost-effectiveness, "said Ou Xuanhong, Marketing Manager of Mailaixin. Its configurable speed curve, optimized acoustic performance, and simplified system integration enable engineers to balance quality and cost requirements in today's fiercely competitive heat dissipation market. ”
MLX90411D is now officially launched. For more information, please visit www.delexis.com/MLX90411-consumer.
