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R
rcolman
Visitor II
October 11, 2012
Question

VNH3SP30-E

  • October 11, 2012
  • 1 reply
  • 838 views
Posted on October 11, 2012 at 15:00

I would like to use a VNH3SP30-E to control the rotation of a dc motor. No PWM. My question is about the inputs, INA, INB, ENA and ENB. Do I need pullup and/or series resistors for these inputs? Can I just tie the ENA and ENB to +5V? The inputs INA and INB will be either +5V or gnd.

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    1 reply

    R
    Rosario-VIP RUGGERI
    Visitor II
    October 12, 2012
    Posted on October 12, 2012 at 16:27

    Dear Customer,

    We recommend to insert the pull-up/series resistors as stated in the application schematic inserted in the datasheet (fig.33):

    -

             

    ENx: 3.3K for Pull-up resistor;

    -

             

    INx: 1K as series resistor; 

    We are available for any further information you may need. 

    Best Regards,

    Rosario Ruggeri

    STMicroelectronics

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