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The L293 and L293D are quadruple high-current half-H drivers. The L293 is designed to provide bidirectional drive currents voltages from 4 The L293D is designed to provide bidirectional drive currents 600-mA at voltages from 4 Both devices are designed to drive inductive loads such. On the L293, external high-speed output clamp diodes should be used for inductive transient suppression terminal, separate from V CC1 The L293and L293D are characterized for operation from 0°C to 70°C.

Block diagram M V CC2 NOTE: Output diodes are internal in L293D. TYPICAL OF ALL OUTPUTS • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 L293, L293D V CC2 Output GND 3. O (nonrepetitive, t ≤ 5 ms): L293 Peak output current (nonrepetitive, t ≤ 100 µs): L293D Peak output current Continuous output current L293. CC2 1.3 0.2 100 0.2 10 −3 −10 −2 −100 L293NE, L293DNE UNIT UNIT MIN TYP MAX 800 400 See Figure 1 See Figure 1 300 300 L293DWP, L293N L293DN UNIT UNIT MIN TYP MAX 750 200 See Figure 1 See Figure 1. L293, L293D QUADRUPLE HALF-H DRIVERS SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004 PARAMETER MEASUREMENT INFORMATION Input V V CC1 CC2 Pulse A Generator (see Note TEST CIRCUIT NOTES includes probe and jig capacitance The pulse generator has the following characteristics: t Figure 1.

Two-Phase Motor Driver (L293) SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004 APPLICATION INFORMATION CC1 16 Thermal Shutdown 4, 5, 12, 13 GND • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 L293, L293D QUADRUPLE HALF-H DRIVERS V CC2 Motor. L293, L293D QUADRUPLE HALF-H DRIVERS SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004 10 kΩ 1,2EN 1A Control A 2A 3,4EN 3A Control Figure 3. Two-Phase Motor Driver (L293D) 8 APPLICATION INFORMATION CC1 Thermal Shutdown 4, 5, 12, 13 GND • POST OFFICE BOX 655303. CC1 low high don’t care • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 L293, L293D QUADRUPLE HALF-H DRIVERS Run L Fast motor stop Free-running motor X stop 2A FUNCTION H Turn right L Turn left L Fast motor stop. L293, L293D QUADRUPLE HALF-H DRIVERS SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004 IL1/IL2 = 300 mA C1 0.22 µ CC2 D6 D1−D8 = SES5001 Figure 6.

Bipolar Stepping-Motor Control mounting instructions The Rthj-amp of the L293 can be reduced by soldering the GND pins to a suitable copper area of the printed circuit board external heat sink. Example of Printed Circuit Board Copper Area (used as heat sink) 11.9 mm 38.0 mm Figure 8. External Heat Sink Mounting Example (θ = 25°C/W) JA • POST OFFICE BOX 655303 DALLAS, TEXAS 75265 L293, L293D QUADRUPLE HALF-H DRIVERS SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004 17.

L293, L293D QUADRUPLE HALF-H DRIVERS SLRS008C − SEPTEMBER 1986 − REVISED NOVEMBER 2004 MAXIMUM POWER AND JUNCTION vs THERMAL RESISTANCE 4 θ 70°C) TOT Side − mm Figure 9 12 APPLICATION INFORMATION MAXIMUM POWER DISSIPATION Heat Sink With θ. Contact TI Distributor or Sales Office Call TI Call TI Samples Not Available Call TI Call TI Samples Not Available Call TI Call TI Samples Not Available Call TI Call TI Replaced by L293DNE Call TI Call TI Replaced by L293DNE Call TI Call TI Samples Not Available Call TI Call TI Replaced by L293DNE Contact TI Distributor or Sales Office Contact TI Distributor.

• Green (RoHS & no Sb/Br): TI defines 'Green' to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants ( not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak. Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’.

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