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Operating Current Of Stepper Driver IC?

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eem2am

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Hello,

-we are using the NJM2673 dual H-bridge stepper driver IC to power our stepper motor.

This IC has a 5V input to power its control circuitry.

NJM2673 DATASHEET HERE :
2shared - download NJM2673_E[1] _STEPPER DRIVER.pdf

OR HERE......

**broken link removed**

At the top of page 5 of the NJM2673 datasheet, it says that the operating current is 60mA max.

However, i am not sure if this 60mA value refers to when the internal h-bridge transistors are being switched or not.

do you believe that when this IC starts switching the transistors of its h-bridges, that the operating current taken by its 5V input will likely be much more than 60mA?

...after all, the h-bridge transistors are BJTs, and there are 8 of them, and they are obviously going to need base current.
 
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