L293d Datasheet

L293, L293D Datasheet  РQuadrapule Half-H bridge drivers to drive inductive loads such as relays, solenoids, dc and bipolar stepping motors using either PWM or full load signals.

 

L293d General Description

The L293 and L293D are quadruple high-current half-H drivers. The L293 is designed to provide bidirectional drive currents of up to 1 A at voltages from 4.5 V to 36 V. The L293D is designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V. Both devices are designed to drive inductive loads such as relays, solenoids, dc and bipolar stepping motors, as well as other high-current/high-voltage loads in positive-supply applications.

All inputs are TTL compatible. Each output is a complete totem-pole drive circuit, with a Darlington transistor sink and a pseudo-Darlington source. Drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2EN and drivers 3 and 4 enabled by 3,4EN. When an enable input is high, the associated drivers are enabled, and their outputs are active and in phase with their inputs. When the enable input is low, those drivers are disabled, and their outputs are off and in the high-impedance state. With the proper data inputs, each pair of drivers forms a full-H (or bridge) reversible drive  suitable for solenoid or motor applications.

 

L293d Features

  • Wide Supply-Voltage Range: 4.5 V to 36 V
  • Separate Input-Logic Supply
  • Internal ESD Protection
  • Thermal Shutdown
  • High-Noise-Immunity Inputs
  • Functionally Similar to SGS L293 andSGS L293D
  • Output Current 1 A Per Channel (600 mA for L293D)
  • Peak Output Current 2 A Per Channel (1.2 A for L293D)
  • Output Clamp Diodes for Inductive Transient Suppression (L293D)

 

L293d Pinout

L293d pinout - driver motor ic datasheet
L293d pinout

 

L293d Function Table & Logic Diagram

L293d Function Table & Logic Diagram - Motor driver IC Datasheet
L293d Function Table & Logic Diagram

 

L293d Circuit

L293d circuit - Bidirectional DC Motor Control
L293d circuit - Bidirectional DC Motor Control

 

L293d Datasheet PDF Download

 


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