Murata NMH1205SC DC/DC converter units - What am I doing wrong ?

Discussion in 'General Electronics Chat' started by ardali, Jan 4, 2013.

  1. ardali

    Thread Starter New Member

    Dec 4, 2012
    9
    0
    I recently bought 2 Murata NMH1205SC DC/DC converter units. Without any external components, applying 12 volts to pin 1 and 0 volts to pin 2 ; I read -7.5 volts at pin 4, 0 volts at pin 5 and +7.5 volts at pin 6 instead of +5v/-5v. ( They are 7 pin SIP). What am I doing wrong ?
    O.Ardali
     
  2. StayatHomeElectronics

    Well-Known Member

    Sep 25, 2008
    864
    40
    Try putting a load, maybe 10% max. power, on the output terminals and see if the desired voltage is at the output. Sometimes these devices don't operate within specification without any load on it.
     
  3. ardali

    Thread Starter New Member

    Dec 4, 2012
    9
    0
    Problem solved. Thank you StayatHomeElectronics.
    O.Ardali
     
Loading...