L293D

(ACTIVE) Quadruple Half-H Drivers

Diagrams

Functional diagram

Description

The L293 and L293D devices 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.

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.

The L293 and L293D are characterized for operation from 0°C to 70°C.

Features

  • Wide Supply-Voltage Range: 4.5 V to 36 V
  • Separate Input-Logic Supply
  • Internal ESD Protection
  • High-Noise-Immunity Inputs
  • 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)

Parametrics

Drivers Per Package 4   
Switching Voltage (Max) (V) 36   
Peak Output Current (mA) 1200   
Delay Time (Typ) (ns) 800   
Output Voltage (Max) (V) 36   
Input Compatibility TTL   
Vol@Lowest Spec Current (Typ) (mV) 1200   
Iout/ch (Max) (mA) 600   
Iout_off (Typ) (uA)  
Rating Catalog   
Pin/Package 16PDIP   

Companion Products

Technical Documents

Datasheet (1)

Application notes (1)

Selection guides (2)

Other Products in Same Family

� Texas Instruments Inc. Privacy Terms