The LB11971H-TLM-E from ON Semiconductor is a high-performance, single-phase bipolar drive motor driver IC designed to power fan motors with efficiency and precision. This compact, yet robust, integrated circuit is a perfect solution for small form factor applications, offering a seamless blend of power and control in a variety of electronic devices such as personal computers, home appliances, and cooling systems.

Key Features

• Single-Phase Motor Control: Designed specifically for driving single-phase brushless DC motors, providing stable and efficient operation.
• Low Voltage Operation: The driver IC operates at a low voltage range, making it suitable for battery-powered applications where power conservation is critical.
• High Output Current: Capable of delivering a high output current, the LB11971H-TLM-E can drive motors that require substantial power, despite its compact size.
• Lock Protection and Automatic Restart Function: The IC includes protection features that prevent motor lock-up by shutting down the output and then automatically restarting, ensuring the longevity of the motor and the driver IC.
• FG (Frequency Generator) Output Function: The built-in FG output allows for speed detection, enabling precise control over motor speed for applications requiring consistent motor performance.
• Thermal Shutdown Circuit: An integrated thermal shutdown circuitry ensures the device operates within safe temperature ranges, protecting the IC from overheating.

Applications

The LB11971H-TLM-E is versatile and can be used across a wide range of applications where reliable motor control is essential. Its primary applications include:

• CPU Cooling Fans
• System Cooling Fans
• Blowers for Projectors
• Portable Cooling Devices
• Small Household Appliances

Product Specifications

The LB11971H-TLM-E comes in a compact SOP-10 package, which is ideal for space-constrained applications. It supports a supply voltage range that is suitable for various electronic devices and systems. For detailed technical specifications, refer to the ON Semiconductor datasheet available on their official website or through authorized distributors.