L293E
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STMicroelectronics L293E

Manufacturer No:
L293E
Manufacturer:
STMicroelectronics
Package:
Tube
Description:
IC MOTOR DRIVER BIPLR 20-PWRDIP
Delivery:
Payment:
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Product Introduction

Overview

The L293E is a quad push-pull driver produced by STMicroelectronics, designed to deliver output currents up to 1A per channel. Each channel is controlled by a TTL-compatible logic input, and each pair of drivers (a full bridge) includes an inhibit input that can turn off all four transistors. The device features a separate supply input for the logic, allowing it to operate at a lower voltage to reduce power dissipation. The L293E is packaged in a 20-pin plastic DIP and includes external connections for sensing resistors, which are useful for switchmode control.

Key Specifications

Parameter Value Unit
Supply Voltage (Vs) 36 V
Logic Supply Voltage (Vss) 4.5 - 36 V
Input Voltage (Vi) 7 V
Inhibit Voltage (Vinh) 7 V
Peak Output Current (non-repetitive) 2 A
Total Power Dissipation at Tground-pins = 80°C 5 W
Storage and Junction Temperature -40 to +150 °C
Thermal Resistance Junction-case 14 °C/W
Thermal Resistance Junction-ambient 80 °C/W

Key Features

  • Output current up to 1A per channel
  • Peak output current of 2A per channel (non-repetitive)
  • Inhibit facility to turn off all four transistors
  • Separate logic supply input
  • High noise immunity
  • Overtemperature protection
  • External connection of sensing resistors for switchmode control (L293E specific)

Applications

  • DC motor controls: The L293E can be used to control bidirectional DC motors, including fast motor stop and free running modes.
  • Bipolar stepping motor control: It can also be used in stepping motor drivers with phase current control and short circuit protection.
  • General-purpose driver applications: Suitable for any application requiring high current drive capabilities with TTL-compatible logic inputs.

Q & A

  1. What is the maximum output current per channel of the L293E?

    The L293E can deliver up to 1A per channel.

  2. What is the peak output current of the L293E?

    The peak output current is 2A per channel (non-repetitive).

  3. Does the L293E have overtemperature protection?

    Yes, the L293E includes overtemperature protection.

  4. Can the logic supply of the L293E be run at a lower voltage?

    Yes, the L293E has a separate supply input for the logic, allowing it to operate at a lower voltage to reduce power dissipation.

  5. What is the package type of the L293E?

    The L293E is packaged in a 20-pin plastic DIP.

  6. Does the L293E have external connections for sensing resistors?

    Yes, the L293E has external connections for sensing resistors, useful for switchmode control.

  7. What is the thermal resistance junction-case of the L293E?

    The thermal resistance junction-case is 14°C/W.

  8. Can the L293E be used for bipolar stepping motor control?

    Yes, the L293E can be used for bipolar stepping motor control with phase current control and short circuit protection.

  9. How should the GND pins of the L293E be soldered for heat dissipation?

    The GND pins should be soldered to a suitable copper area of the printed circuit board or to an external heatsink, ensuring the pins' temperature does not exceed 260°C and the soldering time does not exceed 12 seconds.

  10. Is the L293E still in production?

    No, the L293E is obsolete and no longer manufactured. Recommended substitutes include the L293B.

Product Attributes

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
Technology:- 
Step Resolution:- 
Applications:General Purpose
Current - Output:1A
Voltage - Supply:4.5V ~ 36V
Voltage - Load:4.5V ~ 36V
Operating Temperature:-40°C ~ 150°C (TJ)
Mounting Type:Through Hole
Package / Case:20-DIP (0.300", 7.62mm)
Supplier Device Package:20-PowerDIP
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Same Series
L293E
L293E
IC MOTOR DRIVER BIPLR 20-PWRDIP

Similar Products

Part Number L293E L293NE L293N L293B L293D
Manufacturer STMicroelectronics Texas Instruments Texas Instruments STMicroelectronics STMicroelectronics
Product Status Active Active Obsolete Active Active
Motor Type - Stepper Bipolar Bipolar Bipolar Bipolar Bipolar
Motor Type - AC, DC Brushed DC Brushed DC Brushed DC Brushed DC Brushed DC
Function Driver - Fully Integrated, Control and Power Stage Driver - Fully Integrated, Control and Power Stage Driver - Fully Integrated, Control and Power Stage Driver - Fully Integrated, Control and Power Stage Driver - Fully Integrated, Control and Power Stage
Output Configuration Half Bridge (4) Half Bridge (4) Half Bridge (4) Half Bridge (4) Half Bridge (4)
Interface Parallel Parallel Parallel Parallel Parallel
Technology - Bipolar Bipolar - -
Step Resolution - - - - -
Applications General Purpose General Purpose General Purpose General Purpose General Purpose
Current - Output 1A 1A 1A 1A 600mA
Voltage - Supply 4.5V ~ 36V 4.5V ~ 36V 4.5V ~ 36V 4.5V ~ 36V 4.5V ~ 36V
Voltage - Load 4.5V ~ 36V 4.5V ~ 36V 4.5V ~ 36V 4.5V ~ 36V 4.5V ~ 36V
Operating Temperature -40°C ~ 150°C (TJ) 0°C ~ 70°C (TA) 0°C ~ 70°C (TA) -40°C ~ 150°C (TJ) -40°C ~ 150°C (TJ)
Mounting Type Through Hole Through Hole Through Hole Through Hole Through Hole
Package / Case 20-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm) 16-DIP (0.300", 7.62mm)
Supplier Device Package 20-PowerDIP 16-PDIP 16-PDIP 16-DIP 16-PowerDIP

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