Overview of L293DD from STMicroelectronics

The L293DD is a high-voltage, high-current dual full-bridge driver designed to accept standard TTL logic levels and drive inductive loads such as relays, solenoids, DC and bipolar stepping motors, as well as other high-current/high-voltage loads in positive-supply applications. Manufactured by STMicroelectronics, a leader in semiconductor solutions, the L293DD is a robust and reliable component that is widely used in the automotive and industrial markets.

Key Features

• Integrated Dual Full-Bridge Driver: The L293DD can drive two full-bridge configurations, allowing for the control of two DC motors independently.
• High Voltage and Current: It can handle supply voltages up to 36V and output currents up to 600 mA per channel or 1.2 A peak.
• Thermal Shutdown and Protection: The device includes internal thermal shutdown circuitry, ensuring protection against overheating and thermal overload.
• Low Saturation Voltage: The output saturation voltage is low, which enhances the efficiency of the system.
• Compatible with TTL and CMOS: The L293DD can be driven by digital circuits that operate at TTL or CMOS logic levels.

Applications

The versatility of the L293DD makes it suitable for a wide range of applications. It is commonly used in:

• Stepper motor drivers
• DC motor drivers
• Robotics and automation systems
• Position and velocity servomechanisms
• Automotive applications

Package and Quality

The L293DD is available in a PowerSO20 package, which is designed for surface mount technology (SMT). The package is compact and ensures a minimal footprint on the PCB. STMicroelectronics is committed to delivering high-quality products, and the L293DD is no exception, meeting stringent quality and reliability standards.

Overall, the L293DD from STMicroelectronics is a powerful and versatile motor driver solution that provides efficiency and reliability for designers and engineers working on advanced control applications.