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L293DD
+BOMIC MTR DRV BIPOLR 4.5-36V 20SOIC
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ManufacturerSTMicroelectronics
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Mfr. Part #L293DD
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Datasheet L293DD DataSheet
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In Stock4531
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Specifications
| Attribute | Value |
| 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 |
Overview
Description
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
Features
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
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.