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L293DD013TR

Quad half-H driver, 600mA/ch, 4.5-36V, clamp diodes, SO-20

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Manufacturer Part：

L293DD013TR

Package：

SO-20 / DD-20 (13.0 x 7.6 x 2.35mm, 1.27mm pitch, surface mount)

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Description

Product Overview

The L293DD013TR from STMicroelectronics is a quadruple half-H driver (dual full-bridge) motor driver in an SO-20 package. Capable of driving two DC motors or one stepper motor bidirectionally at up to 600mA per channel (1.2A peak) from 4.5V to 36V, it includes internal clamp diodes for inductive transient suppression.

Key Specifications

Output Configuration 4 half-H bridges (2 full bridges)
Continuous Output Current 600 mA per channel
Peak Output Current 1.2 A per channel (<5ms)
Supply Voltage (Vs) 4.5V to 36V
Logic Supply (Vss) 4.5V to 7V
Output Saturation Voltage 1.2V to 1.8V (source + sink)
Enable Pins 2 (EN1,2 and EN3,4)
Internal Clamp Diodes Yes (for inductive load flyback)
Switching Frequency Up to 5 kHz
Thermal Shutdown Yes
Power Dissipation 4W (TSSOP/SO-20)
Operating Temperature -40 to +150°C (TJ)
Package SO-20 (DD suffix, surface mount)

Features

  • 4-channel half-H driver (2 full bridges)
  • 600mA continuous per channel, 1.2A peak
  • 4.5V to 36V motor supply range
  • Separate logic supply (Vss) for TTL/CMOS compatibility
  • Internal clamp diodes for inductive load protection
  • Two enable pins (each controls 2 channels)
  • Darlington source + pseudo-Darlington sink outputs
  • Thermal shutdown protection
  • High noise immunity inputs (VIH > 2.3V)
  • Bidirectional motor drive capability

Applications

  • DC motor bidirectional drive (2 motors)
  • Bipolar stepper motor drive
  • Relay and solenoid driver
  • Robotics and hobby motor control
  • Small appliance motor drive

The L293DD013TR from ST is a quadruple half-H driver (dual full-bridge) in SO-20. Drives 2 DC motors or 1 stepper motor bidirectionally at 600mA per channel continuous (1.2A peak). 4.5-36V motor supply with separate 4.5-7V logic supply. Internal clamp diodes suppress inductive flyback. Two enable pins independently control channel pairs. Thermal shutdown protection. DD suffix denotes SO-20 surface-mount package, 013 denotes ST manufacturing code, TR suffix denotes tape-and-reel. Classic L293D in surface-mount — ideal for robotics and small motor control.

The L293D consists of four push-pull output drivers, each containing a Darlington transistor (source, pull-up) and a pseudo-Darlington transistor (sink, pull-down). Each pair of drivers forms one half-H bridge; two half-H bridges form one full bridge. For bidirectional DC motor control, the two outputs of a full bridge connect across the motor. Setting IN1=H and IN2=L drives the motor in one direction; IN1=L and IN2=H reverses it; IN1=H and IN2=H brakes (fast stop); IN1=L and IN2=L coasts (free-running). The enable pin (EN) controls both channels of a half-bridge pair — EN=H enables the outputs, EN=L places them in high-impedance (coast). The internal clamp diodes provide a path for inductive flyback current, protecting the output transistors. The separate Vss logic supply allows direct TTL/CMOS interface while the motor runs from a much higher Vs voltage.

Pin Name Type Function
1 EN1,2 Input Enable channels 1 and 2 (active high)
2 1A Input Channel 1 input
3 1Y Output Channel 1 output
4,5,12,13 GND Ground Ground (also thermal dissipation)
6 2Y Output Channel 2 output
7 2A Input Channel 2 input
8 Vs Power Motor supply (4.5-36V)
9 EN3,4 Input Enable channels 3 and 4 (active high)
10 3A Input Channel 3 input
11 3Y Output Channel 3 output
14 4Y Output Channel 4 output
15 4A Input Channel 4 input
16 Vss Power Logic supply (4.5-7V)
  • Dual DC motor robot drive with 600mA per motor and independent direction control
  • Bipolar stepper motor drive with 2-phase full-step excitation at 600mA
  • 4-channel relay/solenoid driver with clamp diodes for flyback protection
  • Small appliance motor control with 24V supply and 5V logic interface
  • Educational robotics platform motor controller with enable-based speed control (PWM)
Manufacturer Part Number Package Notes
ST L293D DIP-16 Through-hole DIP version (same function, 4 GND pins)
TI L293DNE DIP-16 TI version of L293D, DIP-16
TI DRV8833PWP TSSOP-16 2A dual H-bridge, modern alternative
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