STMicroelectronics

L293E

L293E Description

The L293E from STMicroelectronics is a quadruple half-H bridge motor driver IC designed for driving brushed DC motors and bipolar stepper motors. Housed in a 20-pin PowerDIP package, it supports a wide supply voltage range of 4.5V to 36V and delivers a continuous output current of 1A per channel. This obsolete but robust driver features a parallel interface for straightforward control, making it suitable for general-purpose motor driving applications. Its REACH unaffected and ROHS3 compliant status ensures environmental compliance, while its MSL 1 (Unlimited) rating guarantees reliability in storage and handling.

L293E Features

• High Current Output: Capable of delivering 1A per channel, enabling efficient driving of small to medium-sized motors.
• Wide Voltage Range: Operates from 4.5V to 36V, accommodating diverse power supply configurations.
• Versatile Motor Support: Compatible with brushed DC motors and bipolar stepper motors, providing flexibility in design.
• Robust Construction: Through-hole mounting ensures mechanical stability, ideal for prototyping and industrial applications.
• Simplified Control: Parallel interface allows easy integration with microcontrollers and logic circuits.
• Environmental Compliance: ROHS3 compliant and REACH unaffected, meeting stringent regulatory standards.

L293E Applications

The L293E excels in applications requiring precise motor control with moderate power demands, such as:

• Robotics: Driving small robotic actuators and wheels.
• Automotive Systems: Powering window lifters, wipers, and mirror adjusters.
• Industrial Automation: Controlling conveyor belts, small pumps, and linear actuators.
• Consumer Electronics: Used in printers, scanners, and automated home appliances.
• Educational Kits: Ideal for prototyping motor control circuits in engineering labs.

Conclusion of L293E

Though marked as obsolete, the L293E remains a reliable choice for low-to-medium power motor driving applications due to its wide voltage range, robust design, and ease of use. Its versatility in supporting both DC and stepper motors makes it a valuable component in prototyping, industrial, and consumer applications. Engineers and hobbyists seeking a simple yet effective motor driver will find the L293E a practical solution, despite newer alternatives in the market.