L293B Просмотр технического описания (PDF) - STMicroelectronics

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L293B

PUSH-PULL FOUR CHANNEL DRIVERS

STMicroelectronics 

L293E L293B

Figure 6. Output Voltage versus Input Voltage

APPLICATION INFORMATION

Figure 8. DC Motor Controls

(with connection to ground and to the

supply voltage)

Figure 7. Output Voltage versus Inhibit Voltage

Vinh A

M1

B

M2

H H Fast Motor Stop H Run

H L Run

L Fast Motor Stop

L X Free Running

X Free Running

Motor Stop

Motor Stop

L = Low H = High X = Don’t Care

Figure 9. Bidirectional DC Motor Control

6/12

Inputs

Function

Vinh = H

C=H;D=L

C=L;D=H

Turn Right

Turn Left

C=D

Fast Motor Stop

Vinh = L C = X ; D = X Free Running Motor Stop

L = Low H = High X = Don’t Care

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