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Original question:

SN65HVD3082E: RS485 SN65HVD3082EDR undershoot while TX enable

SN65HVD3082E: how to decrease SN65HVD3082 power consumption

Pei Gong
Prodigy 510 points
Part Number: SN65HVD3082E

Hi

Please help to check below shematic, the RS485 will have 50mA power consumption when Transfer a Data, do you know how to decrese the SN65HVD3082 of power consumption?

  • 0
    Guru 243110 points

    How much current does flow through the bus? (Check the voltage drop over XR7.) It's possible that the bus has a short, or that multiple transmitters are active at the same time.

    Is DE set correctly? Show an oscilloscope trace of DE and D.