24 V

5 V

10 k

Ω

VCC1

VCC2

16

8

1,2EN

1

1A

2

2A

7

3,4EN

9

3A

10

4A

15

Control A

Control B

4, 5, 12, 13

GND

Thermal

Shutdown

Motor

1Y

3

2Y

6

3Y

11

4Y

14

3

1

0

2

0

10

20

4

30

60

20

0

40

80

40

Side

− mm

θJA

PTOT (TA = 70°C)

50

L293, L293D

SLRS008D – SEPTEMBER 1986 – REVISED JANUARY 2016

www.ti.com

Typical Application (continued)

9.2.3 Application Curve

Refer to Power Supply Recommendations for additional information with regards to appropriate power

dissipation. Figure 7 describes thermal dissipation based on Figure 14.

Figure 7. Maximum Power and Junction vs Thermal Resistance

9.3 System Examples

9.3.1 L293D as a Two-Phase Motor Driver

Figure 8 below depicts a typical setup for using the L293D as a two-phase motor driver. Refer to the

Recommended Operating Conditions when considering the appropriate input high and input low voltage levels to

enable each channel of the device.

Figure 8. Two-Phase Motor Driver (L293D)

10

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