L293D Motor Runs at low Voltage

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yovenim

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Hi all,

I need a small help regarding L293D.

I am making a small project using L293D. Bo motor which hardly consumes 60ma at 5v.
i am powering my L293D using a step up circuit 3.7V to 5V from 3.7v li-ion battery.

output current from step up circuit is 200ma which is not a issue.
my problem is the motor voltage pin no 8 shows me 5.12v. when i drive my motor the voltage accross shows me only 3.00v... due to which the motor drives very slow.

can anybody please help why this happen....
 

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The step-up converter is stepping up the voltage. But the current is being lower. L293D is not getting enough input current. Try to power it up with batteries directly.
 

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