Hello everyone.
I am an electronic newbie, and I am replacing an L293D H-bridge IC with an L298N in a circuit controlled by an Arduino UNO driving two bidirectional coils, due to higher currents needs, but for some reason, I am unable to have a zero (or almost zero) voltage when the L298N H-bridge should be off (when all inputs and enable pins are set to LOW). I always get around 450mV from the outputs.
Here is the schematics of the circuit I am working on:
I have tried to add a 10k pull-down resistor at the inputs (5,6,7) and enable (10,11,12) pins, but no avail. Any tips to avoid having that pretty high voltage at the outputs when the H-bridge should be off?
Here is the datasheet of the L298N for reference:
https://www.mouser.com/datasheet/2/389/cd00000240-1795236.pdf
Any suggestions and thoughts are very welcome!
All the best,
Fab.
I am an electronic newbie, and I am replacing an L293D H-bridge IC with an L298N in a circuit controlled by an Arduino UNO driving two bidirectional coils, due to higher currents needs, but for some reason, I am unable to have a zero (or almost zero) voltage when the L298N H-bridge should be off (when all inputs and enable pins are set to LOW). I always get around 450mV from the outputs.
Here is the schematics of the circuit I am working on:
I have tried to add a 10k pull-down resistor at the inputs (5,6,7) and enable (10,11,12) pins, but no avail. Any tips to avoid having that pretty high voltage at the outputs when the H-bridge should be off?
Here is the datasheet of the L298N for reference:
https://www.mouser.com/datasheet/2/389/cd00000240-1795236.pdf
Any suggestions and thoughts are very welcome!
All the best,
Fab.
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