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

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SUMMARY

The L293D motor driver includes built-in inductive transient suppression diodes, eliminating the need for additional flyback diodes when used with a 5V DC motor. In contrast, the standard L293 model requires external flyback diodes to protect against voltage spikes. This distinction is crucial for circuit design involving DC motors and motor drivers.

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  • Understanding of L293D motor driver functionality
  • Knowledge of inductive loads and their behavior
  • Familiarity with circuit protection techniques
  • Basic electronics concepts related to DC motors
NEXT STEPS
  • Research the differences between L293D and L293 motor drivers
  • Learn about inductive transient suppression techniques
  • Explore circuit design for DC motors using L293D
  • Investigate other motor driver options with built-in protection
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Electronics enthusiasts, hobbyists designing motor control circuits, and engineers working with DC motors and motor driver ICs.

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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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Thank you very much!
 

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