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.
PART NUMBER | PACKAGE | BODY SIZE (NOM) |
---|---|---|
L293NE | PDIP (16) | 19.80 mm × 6.35 mm |
L293DNE | PDIP (16) | 19.80 mm × 6.35 mm |
Changes from C Revision (November 2004) to D Revision
PIN | TYPE | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
1,2EN | 1 | I | Enable driver channels 1 and 2 (active high input) |
<1:4>A | 2, 7, 10, 15 | I | Driver inputs, noninverting |
<1:4>Y | 3, 6, 11, 14 | O | Driver outputs |
3,4EN | 9 | I | Enable driver channels 3 and 4 (active high input) |
GROUND | 4, 5, 12, 13 | — | Device ground and heat sink pin. Connect to printed-circuit-board ground plane with multiple solid vias |
VCC1 | 16 | — | 5-V supply for internal logic translation |
VCC2 | 8 | — | Power VCC for drivers 4.5 V to 36 V |