onsemi

LB1947-E

LB1947-E Description

The LB1947-E is a general-purpose motor driver IC designed for driving brushed DC motors. Manufactured by onsemi, this IC is part of the Power Management (PMIC) category and is housed in a Tube package. It features a half-bridge output configuration with a maximum output current of 2A, making it suitable for a variety of applications requiring robust motor control. The LB1947-E operates within a load voltage range of 10V to 45V and a supply voltage range of 4.75V to 5.25V. It employs bipolar technology and is mounted through-hole, ensuring reliable and durable performance in various industrial and consumer electronics applications. The product is REACH unaffected and classified under HTSUS code 8542.39.0001. Although the LB1947-E is now obsolete, its legacy continues to influence the design of modern motor driver solutions.

LB1947-E Features

• Output Configuration: The LB1947-E features a half-bridge output configuration, which allows for efficient control of brushed DC motors. This configuration supports bidirectional motor control, enabling precise speed and direction adjustments.
• Current Capability: With a maximum output current of 2A, the LB1947-E is capable of driving motors with significant torque requirements, making it suitable for applications demanding high power output.
• Voltage Range: The IC operates within a load voltage range of 10V to 45V and a supply voltage range of 4.75V to 5.25V, providing flexibility in power supply options and compatibility with a wide range of motor specifications.
• Technology: Utilizing bipolar technology, the LB1947-E offers high performance and reliability, ensuring stable operation under varying load conditions.
• Mounting Type: The through-hole mounting type ensures robust mechanical stability and ease of integration into printed circuit boards (PCBs), making it ideal for applications requiring high reliability and durability.
• Interface: The parallel interface facilitates straightforward communication and control, simplifying the integration process and reducing the complexity of the overall system design.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the LB1947-E is highly resistant to moisture, ensuring long-term reliability and performance in various environmental conditions.

LB1947-E Applications

The LB1947-E is well-suited for a variety of applications where reliable motor control is essential. Its robust design and high current capability make it ideal for:

• Consumer Electronics: Appliances such as washing machines, vacuum cleaners, and power tools that require precise motor control and high torque output.
• Industrial Automation: Conveyor systems, robotic arms, and other industrial machinery that demand reliable and efficient motor operation.
• Automotive: Electric windows, seat adjusters, and other automotive applications where compact and reliable motor drivers are required.
• Medical Equipment: Medical devices such as infusion pumps and diagnostic equipment, where precise motor control is critical for accurate operation.

Conclusion of LB1947-E

The LB1947-E is a versatile and reliable motor driver IC designed for general-purpose applications. Its half-bridge output configuration, high current capability, and wide voltage range make it suitable for driving brushed DC motors in various consumer, industrial, and automotive applications. The through-hole mounting type and bipolar technology ensure robust performance and durability, while the parallel interface simplifies integration into complex systems. Although the LB1947-E is now obsolete, its legacy continues to influence the development of modern motor driver solutions, highlighting its importance in the field of power management and motor control.