Do I Need Flyback Diodes for an L293D and 5V DC Motor Circuit?

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The L293D motor driver includes built-in inductive transient suppression diodes, so additional flyback diodes are not necessary when using it with a 5V DC motor. In contrast, the standard L293 model requires external diodes for protection against back EMF. This distinction is crucial for ensuring circuit safety and functionality. Users should verify which version of the L293 they are using to determine the need for flyback diodes. Proper understanding of these components can enhance the reliability of motor control circuits.
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Hello,

do I need flyback diodes in circuit of L293D and 5V DC motor?
Thanks!
 
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=SJ= said:
Hello,

do I need flyback diodes in circuit of L293D and 5V DC motor?
Thanks!
hi there SJ

for the L293D version, no you don't, it has built in inductive transient suppression diodes
its brother the plain L293 ( No D) does require external diodes across the motors being driven

Dave
 
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