L293DD

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L293DD

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IC MTR DRV BIPOLR 4.5-36V 20SOIC

  • Nhà sản xuấtSTMicroelectronics

  • Ông. Phần #L293DD

  • Bảng dữ liệu L293DD DataSheet

  • Có sẵn4531

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Thông số kỹ thuật

thuộc tính Giá trị
Part Status Active
Base Product Number L293
Motor Type - Stepper Bipolar
Motor Type - AC, DC Brushed DC
Function Driver - Fully Integrated, Control and Power Stage
Output Configuration Half Bridge (4)
Interface Parallel
Applications General Purpose
Current - Output 600mA
Voltage - Supply 4.5V ~ 36V
Voltage - Load 4.5V ~ 36V
Operating Temperature -40°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package 20-SOIC (0.295", 7.50mm Width)
Supplier Device Package 20-SO
Packaging Tube

Tổng quan

Description

The L293DD is an integrated circuit (IC) used primarily for driving motors and controlling the direction and speed of DC motors and stepper motors. It belongs to the L293 series, known for its capability to handle moderate power requirements, typically for robotics and automation projects. The L293DD is a quadruple high-current half-H driver, which means it contains four half-bridge drivers capable of controlling two motors simultaneously.
Key features include:
1. Dual H-Bridge Configuration: Allows for bidirectional control of two motors.
2. High Current Output: Can supply up to 600 mA per channel, with peak currents up to 1.2 A.
3. Wide Supply Range: Operates with a supply voltage ranging from 4.5V to 36V, making it versatile for various applications.
4. Built-in Diodes: Protects against back EMF generated by motors.
5. Thermal Shutdown: Prevents damage from overheating, enhancing reliability.
The L293DD is commonly used in robotics, remote-controlled toys, and any application requiring precise motor control. Its compact size and ease of use make it suitable for educational and hobbyist projects.

Equivalent

Equivalent products to the L293DD, a quadruple high-current half-H driver, include the SN754410 from Texas Instruments, the L298N from STMicroelectronics, and the DRV8833 also from Texas Instruments. These alternatives provide similar functionalities for driving motors with dual H-bridge capabilities, although specifications such as current ratings and voltage levels may vary, so it's important to verify compatibility with specific project requirements.

Features

The L293DD is a quadruple half-H driver integrated circuit designed for driving inductive loads such as relays, solenoids, DC and stepper motors. Key features include:
1. Dual H-Bridge: Contains two full H-bridge drivers, allowing it to independently control two DC motors or one stepper motor.
2. High Current Capability: Can supply up to 600 mA per channel, with peak output currents of 1.2 A per channel.
3. Wide Supply Voltage Range: Operates on supply voltages from 4.5V to 36V.
4. Diode Protection: Internal clamp diodes safeguard against back-EMF when driving inductive loads.
5. Thermal Shutdown: Built-in thermal protection to prevent overheating.
6. TTL Compatible Inputs: Compatible with standard TTL logic, allowing easy interfacing with microcontrollers.
7. Enable Pins: Each H-bridge has an enable pin for easy ON/OFF control.
8. Compact Package: Available in a 20-pin SOIC package, making it suitable for compact applications.
These features make the L293DD suitable for a wide range of motor control applications in robotics and automation.

Pinout

The L293DD is a quadruple high-current half-H driver IC used for driving inductive loads such as relays, solenoids, DC and bipolar stepping motors, as well as other high-current/high-voltage loads in positive-supply applications. The L293DD comes in a 20-pin surface-mount package (SOIC).
Pin Count and Functions:
1. Pins 1, 9: Enable 1,2 and Enable 3,4 - Enable inputs for the drivers. High logic level enables the respective driver pair.
2. Pins 2, 15: Input 1 and Input 4 - Control inputs for drivers 1 and 4.
3. Pins 3, 14: Output 1 and Output 4 - Outputs for drivers 1 and 4.
4. Pins 4, 5, 12, 13: Ground - Common ground pins.
5. Pins 6, 11: Output 2 and Output 3 - Outputs for drivers 2 and 3.
6. Pins 7, 10: Input 2 and Input 3 - Control inputs for drivers 2 and 3.
7. Pins 8, 16: VCC2 and VCC1 - Supply voltage for the output stages and the logic section, respectively.
The L293DD can control the direction and state of the motor by applying varying logic levels to the input pins.

Manufacturer

The L293DD is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a broad range of semiconductor products. These products are used in a variety of microelectronic applications, including automotive, industrial, personal electronics, and communications equipment. The company is known for its comprehensive portfolio of products that includes analog, digital, and mixed-signal components, as well as microcontrollers and sensors. STMicroelectronics operates worldwide and is recognized for its innovation and commitment to sustainable technology development.

Application

The L293D is a dual H-bridge motor driver IC commonly used for controlling small DC motors and stepper motors. It is widely applied in robotics for driving and controlling the direction and speed of robot motors. Additionally, it is used in automation systems, including conveyors and industrial actuators, for precise motor control. In educational projects and hobbyist electronics, the L293D is popular due to its simplicity and ease of interfacing with microcontrollers like Arduino and Raspberry Pi. It can also be found in model railroads and other applications requiring bidirectional motor control with moderate current and voltage requirements.

Package

The L293DD is a 20-pin surface-mount device (SMD) integrated circuit with a small outline integrated circuit (SOIC) package. It's specifically designed for driving inductive loads such as relays, DC and stepper motors.

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