From Micro Ohm's description

L293D PowerDIP-16 Stepper Motor Controller/ Driver is a dual H-bridge motor driver integrated circuit (IC). Motor drivers act as current amplifiers since they take a low-current control signal and provide a higher-current signal. This higher current signal is used to drive the motors. The Device is a monolithic integrated high voltage, high current four channel driver designed to accept standard DTL or TTL logic levels and drive inductive loads (such as relays solenoids, DC and stepping motors) and switching power transistors. To simplify use as two bridges each pair of channels is equipped with an enable input. A separate supply input is provided for the logic, allowing operation at a lower voltage and internal clamp diodes are included. It is suitable for use in switching applications at frequencies up to 5 kHz. The L293D is assembled in a 16 lead plastic package which has 4 centre pins connected together and used for heatsinking The L293DD is assembled in a 20 lead surface mount which has 8 centre pins connected together and used for heatsinking. L293D contains two inbuilt H-bridge driver circuits. In its common mode of operation, two DC motors can be driven simultaneously, both in forward and reverse direction. The motor operations of two motors can be controlled by input logic at pins 2 & 7 and 10 & 15. Input logic 00 or 11 will stop the corresponding motor. Logic 01 and 10 will rotate it in clockwise and anticlockwise directions, respectively. Enable pins 1 and 9 (corresponding to the two motors) must be high for motors to start operating. When an enable input is high, the associated driver gets enabled. As a result, the outputs become active and work in phase with their inputs. Similarly, when the enable input is low, that driver is disabled, and their outputs are off and in the high-impedance state. They are designed to drive inductive loads such as relays, solenoids, dc and bipolar stepping motors, as well as their high-current/high-voltage loads in positive-supply applications. Note: Image may vary from actual product in terms of Manufacturer/Brand name according to the availability. Features: 600ma Output Current Capability Per Channel 1.2a Peak Output Current (Non Repetitive) Per Channel Enable Facility Overtemperature Protection Logical “0” Input Voltage Up To 1.5 V (High Noise Immunity) Internal Clamp Diodes. Featuring Unit rode L293 and L293D Wide Supply-Voltage Range: 4.5 V to 36 V Separate Input-Logic Supply Internal ESD Protection Thermal Shutdown High-Noise-Immunity Inputs Functional Replacements for SGS L293 and SGS L293D Output Current 1 A Per Channel Package Includes: 1 x L293D PowerDIP-16 Stepper Motor Controller/ Driver Package/Case PowerDIP-16 Mounting Type Through Hole No. of Drivers 1 No. of Output 2 Maximum Supply Voltage (V) 36 Minimum Supply Voltage (V) 4.5 Max. Operating Current (mA) 2 Max. Output Current (A) 600 mA Operating Temperature Range (°C) -40 to 130 Dimensions in mm (LxWxH) 19.20 x 7.97 x 3.26 Shipment Weight 0.005 kg Shipment Dimensions 6 × 5 × 3 cm

From Micro Ohm's description

This L293D Motor Driver / Stepper / Servo Shield for Arduino?is probably one of the most versatile on the market and features 2 servo and 4 motor connectors for DC or stepper motors. That makes it a great shield for any robotic project.?This Arduino compatible motor Driver shield is a full-featured product that it can be use to drive 4 DC motor or two 4-wire steppers and two 5v servos. It drives the DC motor and stepper with the L293D, and it drives the servo with Arduino pin9 and pin10. L293D is a monolithic integrated, high voltage, high current, 4-channel driver. Basically, this means using this chip you can use DC motors and power supplies of up to 36 Volts, that some pretty big motors and the chip can supply a maximum current of 600mA per channel, the L293D chip is also what?s known as a type of H-Bridge. The H-Bridge is typically an electrical circuit that enables a voltage to be applied across a load in either direction to an output, e.g. a motor. The shield contains two L293D motor drivers and one 74HC595 shift register. The shift register expands 3 pins of the Arduino to 8 pins to control the direction of the motor drivers. The output enables the L293D is directly connected to PWM outputs of the Arduino. Features Can drive 4 DC motors or 2 stepper motors or 2 Servo. Basically this means using this chip you can use DC motors and power supplies of up to 12 Volts Thats some pretty big motors and the chip can supply a maximum current of 600mA per channel, the L293D chip is also what’s known as a type of H-Bridge. The H-Bridge is typically an electrical circuit that enables a voltage to be applied across a load in either direction to an output, e.g. motor. 2 connections for 5V servos motor connected to the Arduino’s high-resolution dedicated timer – no jitter! Up to 4 bi-directional DC motors with individual 8-bit speed selection. Up to 2 stepper motors (unipolar or bipolar) with single coil, double coil or interleaved stepping. 4 H-Bridges: per bridge provides 0.6A (1.2A peak current) with thermal protection, can run motors on 4.5V to 12V DC. Pull down resistors keep motors disabled during power-up. Reset button. 2 external terminal power interface, for seperate logic/motor supplies. Tested compatible for Arduino Mega, Diecimila & Duemilanove. Power Supply Power for the motors can be supplied from the Arduino boards DC Jack (normally 9V) or from the 2-pin EXT-PWR terminal block. If you are supplying power from the?EXT_PWR?terminal block you should?remove the PWR jumper?or you could damage the shield and the Arduino board. Documents L293D Data Sheet Schematic Diagram AFMotor Driver Library AccelStepper Driver Library Arduino Tutorial Pins Digital pins Used by this shield 0 (RX) and 1 (TX) Pin 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Motor MOTOR1_PWM ? pin 11 MOTOR2_PWM ? pin 3 MOTOR3_PWM ? pin 6 MOTOR4_PWM ? pin 5 SERVO1_PWM ? pin 10 SERVO2_PWM ? pin 9 Shift Register LATCH ? pin 12 CLK ? pin 4 ENABLE ? pin 7 DATA ? pin 8 Available 2 and 13 9 and 10 are used for the servo motors Analog pins Available A0, A1, A2, A3, A4, A5 are I2C (A4=SDA and A5=SCL) SPI is not possible since?those pins are used Notes: Please note that this item does not come with an Arduino (you’ll need one to use with the shield). The shield now comes with all the components soldered on and tested and have headers installed.

From Most Electronic's description

The L293D Motor Driver IC (Original) is a dual H-bridge motor driver chip widely used for controlling DC motors and stepper motors in Arduino, robotics, and embedded systems . It allows you to drive two DC motors independently or one stepper motor with precise direction and speed control. This IC supports motor voltages up to 36V and can deliver up to 600mA per channel , making it ideal for medium-power applications. In addition, it includes built-in flyback diodes to protect against voltage spikes generated by motors during operation. Because of its compact DIP-16 package , it’s easy to use on breadboards, PCBs, or Arduino motor shields . Also, it works seamlessly with Arduino, Raspberry Pi, STM32 , and other microcontrollers, therefore it’s perfect for robot car kits, automation, and DIY motor control projects . Key Features: Model: L293D (Original) Type: Dual H-Bridge Motor Driver IC Operating Voltage: 4.5V – 36V DC Output Current: Up to 600mA per channel Controls two DC motors or one stepper motor Built-in flyback diodes for protection Package: DIP-16 , easy for prototyping Compatible with Arduino, Raspberry Pi, and STM32 Ideal for robotics, automation, and educational projects Perfect for students, hobbyists, and engineers, the L293D Original Motor Driver IC is the ideal choice for simple, efficient, and reliable motor control in all types of electronic projects.

From Makers Electronics's description

Features: Specifications :- 600mA OUTPUT CURRENT CAPABILITY PER CHANNEL 1.2A PEAK OUTPUT CURRENT (non repetitive) PER CHANNEL ENABLE FACILITY OVERTEMPERATURE PROTECTION LOGICAL “0” INPUT VOLTAGE UP TO 1.5 V (HIGH NOISE IMMUNITY) INTERNAL CLAMP DIODES Working volt : 5-12v Note: L293D Quadruple Half-H Driver Ic is not Included (You can buy it separately) Dimensions : 43×43 (mm) Package Included : 1x L293D Dual Channel Driver

From Future Electronics Egypt's description

L293D ia a PUSH-PULL FOUR CHANNEL DRIVER WITH DIODES Driving Current: 600 A continuos and 1.2 A peak Voltage ranges: 7 to 36 Volts. For L293D Data sheet , please click here