STMicroelectronics

L9349TR-LF

The L9349TR-LF is a high-performance stepper motor driver manufactured by STMicroelectronics. This device is designed to drive unipolar or bipolar stepper motors with a current up to 2.5A per phase without the need for external current sense resistors.

Description:

The L9349TR-LF is a monolithic integrated circuit in a thermally enhanced TSSOP-28 package. It features advanced control and protection functions, including overcurrent, overtemperature, and under-voltage lockout. The device also includes a microstepping resolution selector, which allows for precise control of the motor's motion.

Features:

1. High current drive capability: Capable of driving stepper motors with a current up to 2.5A per phase.
2. Microstepping resolution selector: Allows for precise control of motor motion with resolutions up to 1/32.
3. Advanced control and protection functions: Overcurrent, overtemperature, and under-voltage lockout.
4. Compact package: TSSOP-28 package with thermally enhanced design for better heat dissipation.
5. Low power consumption: Operates with a supply voltage range of 8V to 45V and a standby current of only 2mA.
6. Easy to use: No external current sense resistors required.

Applications:

The L9349TR-LF stepper motor driver is suitable for a wide range of applications that require precise control of stepper motors, including:

1. Industrial automation and robotics
2. 3D printers and CNC machines
3. Medical equipment
4. Office automation equipment
5. Security and surveillance systems
6. Test and measurement equipment

In summary, the L9349TR-LF is a high-performance stepper motor driver that offers advanced control and protection features in a compact package. It is suitable for various applications where precise motor control and high current drive capability are required.