Quadruple Half-H Drivers - L293


Quadruple Half-H Drivers



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.


  • 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
  • Peak Output Current 2 A Per Channel (1.2 A for
  • Output Clamp Diodes for Inductive Transient
    Suppression (L293D)

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Parametrics Compare all products in Peripheral Driver and Actuator

Drivers Per Package
Switching Voltage (Max) (V)
Peak Output Current (mA)
Delay Time (Typ) (ns)
Output Voltage (Max) (V)
Input Compatibility
Vol@Lowest Spec Current (Typ) (mV)
Iout/ch (Max) (mA)
Approx. Price (US$)
L293 L293D
4    4   
36    36   
2000    1200   
800    800   
36    36   
TTL    TTL   
1200    1200   
1000    600   
Catalog    Catalog   
16PDIP    16PDIP   
1.58 | 1ku    1.58 | 1ku