PSD5042-2P/2-phase step driver

Description of step driver PSD5042-2P/2-phase stepping driver KeyFeatures: 20to50VDCSupplyVoltage H-Bridge,2PhaseBi-polarMicro-steppingDrive Suitablefor2-phase,4,6and8leadsstepmotors,withNemasize16to34 Outputcurrentselectablefrom1.0 4.2Apeak Currentreductionby50%automatically,whenmotorstandstillmodeisenabled PulseInputfrequencyupto200kHz Opticallyisolated differentialTTLinputsforPulse,DirectionandEnable signalinputs Selectableresolutionsupto25000 steps OverVoltage,CoiltoCoilandCoiltoGroundshortcircuitprotection. Introduction PSD5042-2P isacosteffective,highperformancebi-polartwophasemicro-steppingdriveapplyingpure-sinusoidalcurrentcontroltechnique.Itisbestsuitedfortheapplicationsthatdesiredextremelownoiseandheat.Itoperateswellinanenvironment,whereelectricitysupplyexperienceinstabilityandfluctuation . Thegeneralpseudo-sinusoidalcurrentcontroltechnologyadoptedbymajorityofthedriveproduceddistortedsinewave,andcurrentripple,resultinginvibration,noiseandmotorheating.Thisresultsinmotordegradingovertime,reducinginmotorperformanceandshortenstheusagelife. Withanautomaticoptimizationspeedcontroltechnique,thePowerStepseriesdriveoutputisverystable,withalmostzerovibrationandnoise,performingclosetoaservosystem,allowingthemotortooperatesmoothly.Thathelpstofulfilladesignrequirementoflownoise,lowheatandhighperformance. Specifications Parameters Min Typical Max Unit OutputCurrent(Peak) 1.0 - 4.2 Amps Supplyvoltage 20 36 50 VDC LogicInputCurrent 7 10 16 mA Pulseinputfrequency 0 - 200 KHz LowLevelTime 2.5 µsec CurrentSetting CurrentSetting(A) SW1 SW2 SW3 1.0 ON ON ON 1.46 OFF ON ON 1.91 ON OFF ON 2.37 OFF OFF ON 2.84 ON ON OFF 3.31 OFF ON OFF 3.76 ON OFF OFF 4.20 OFF OFF OFF Microstep Setting Step/Rev SW5 SW6 SW7 SW8 400 OFF ON ON ON 800 ON OFF ON ON 1600 OFF OFF ON ON 3200 ON ON OFF ON 6400 OFF ON OFF ON 12800 ON OFF OFF ON 25600 OFF OFF OFF ON 1000 ON ON ON OFF 2000 OFF ON ON OFF 4000 ON OFF ON OFF 5000 OFF OFF ON OFF 8000 ON ON OFF OFF 10000 OFF ON OFF OFF 20000 ON OFF OFF OFF 25000 OFF OFF OFF OFF *SW4:ON=Fullcurrent,SW4:OFF=Halfcurrent