STMicroelectronics

L9942XP1  

Motor Drivers, Controllers

L9942XP1 Description

The L9942XP1 is a high-performance, automotive-grade power management integrated circuit (PMIC) designed to drive bipolar stepper motors with precision and reliability. Manufactured by STMicroelectronics, this IC offers a robust solution for applications requiring efficient motor control within a 3V to 5.3V supply voltage range. The L9942XP1 features a half-bridge output configuration with a maximum current output of 1.3A, making it suitable for demanding motor control tasks. Its advanced DMOS technology ensures high efficiency and low power consumption, while the SPI interface allows for seamless communication and control.

L9942XP1 Features

• Output Current Capability: The L9942XP1 supports a maximum output current of 1.3A, ensuring robust performance even under heavy loads.
• Output Configuration: Utilizing a half-bridge configuration with four outputs, this IC provides versatile control options for bipolar stepper motors.
• Step Resolution: The L9942XP1 offers a wide range of step resolutions, including 1, 1/2, 1/8, 1/16, and 1/32, enabling precise motor control and smooth operation.
• Supply Voltage Range: With a supply voltage range of 3V to 5.3V, the L9942XP1 is compatible with various power sources, providing flexibility in system design.
• Load Voltage: The IC supports load voltages from 7V to 20V, making it suitable for a wide range of motor applications.
• Technology: Employing DMOS technology, the L9942XP1 achieves high efficiency and low power dissipation, enhancing overall system performance.
• Compliance and Standards: The L9942XP1 is REACH unaffected and RoHS3 compliant, ensuring environmental safety and regulatory adherence. It also has a moisture sensitivity level (MSL) of 3, allowing for 168 hours of exposure.
• Package and Mounting: Available in a tube package and designed for surface-mount applications, the L9942XP1 is easy to integrate into compact and space-constrained designs.
• Interface: The SPI interface provides a straightforward and efficient means of communication, simplifying control and monitoring.

L9942XP1 Applications

The L9942XP1 is ideal for a variety of automotive and industrial applications where precise motor control is essential. Its automotive-grade certification makes it particularly suitable for:

• Automotive Systems: Ideal for driving stepper motors in automotive applications such as electronic throttle control, seat positioning, and window regulators.
• Industrial Automation: Suitable for precise control in industrial equipment, including CNC machines, robotic arms, and conveyor systems.
• Consumer Electronics: Effective in applications requiring high-precision motor control, such as 3D printers, scanners, and other precision instruments.

Conclusion of L9942XP1

The L9942XP1 from STMicroelectronics stands out as a versatile and efficient solution for driving bipolar stepper motors in various demanding applications. Its combination of high current output, flexible step resolution, and advanced DMOS technology ensures reliable and precise motor control. The automotive-grade certification and compliance with environmental standards further enhance its suitability for modern, high-performance systems. Whether in automotive, industrial, or consumer electronics, the L9942XP1 offers a robust and efficient solution for precise motor control, making it a valuable component in the power management portfolio.

L9942XP1 Documents

Download datasheets and manufacturer documentation for L9942XP1

PCN :

Lead Frame 2nde Source Qualification (PDF)       Product Change Notification (PDF)       Product Change Notification 2024-02-14 (PDF)