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EUM6898R

PWM直接輸入單相全波馬達驅(qū)動芯片; ?單相全波驅(qū)動輸出\n?外圍組件少\n?內(nèi)置過沖吸收電路，無需外接Zener\n?軟啟動和重啟，外部可調(diào)\n?寬工作電壓（3V～18V）\n?PWM直接輸入控速\n?最低轉(zhuǎn)速外部設(shè)定（EUM6898R）\n?噪聲抑制外部可調(diào)\n?停轉(zhuǎn)占空比外部設(shè)定（EUM6898S）\n?風扇轉(zhuǎn)速斜率外部設(shè)定\n?內(nèi)置過電流保護\n?鎖定保護與自動重啟\n?內(nèi)置霍爾偏置\n?FG輸出\n?TSSOP-16和TSSOP-14（EP）封裝\n?符合RoHS規(guī)范及無鉛，無鹵;

EUM6898R/S是一款單相直流無刷馬達驅(qū)動芯片，其通過PWM直接輸入模式高效控制直流無刷馬達運轉(zhuǎn)。EUM6898R/S內(nèi)置功能包括最小轉(zhuǎn)速設(shè)定、停轉(zhuǎn)模式、轉(zhuǎn)速斜率設(shè)定、軟啟動、風扇轉(zhuǎn)速檢測、鎖定保護、自動重啟、過熱保護、過電流保護和噪聲抑制等功能。噪聲抑制模式通過調(diào)整SW引腳電阻，優(yōu)化無刷直流風扇馬達的噪聲性能，實現(xiàn)馬達低噪聲、低抖動運轉(zhuǎn)；最低轉(zhuǎn)速設(shè)定通過預設(shè)RMIN引腳電壓實現(xiàn)；停轉(zhuǎn)模式占空比通過控制STOP引腳電壓進行設(shè)定；轉(zhuǎn)速斜率設(shè)定通過預設(shè)SL引腳電壓實現(xiàn)；軟啟動控制模式能夠有效抑制馬達啟動瞬間的尖峰浪涌電流，還能保證低轉(zhuǎn)速運轉(zhuǎn)時馬達可靠啟動。如果馬達被外力或者障礙物卡住，則過驅(qū)動電流會引起溫度升高而損壞馬達，為了防止此類現(xiàn)象，芯片內(nèi)置鎖定保護電路關(guān)斷內(nèi)部功率管，切斷馬達驅(qū)動電流。幾秒鐘后自動重啟電路將嘗試重新啟動。EUM6898R/S還具有轉(zhuǎn)速回饋輸出。

EUM6898R

Single-Phase Full-Wave Motor Driver with Direct PWM Input

FDS6898A

SynchronousBuckControllerwithPre-biasStartup,andOptionalClockSynchronization

FDS6898A

DualN-ChannelLogicLevelPWMOptimizedPowerTrenchMOSFET

GeneralDescription TheseN-ChannelLogicLevelMOSFETsareproducedusingFairchildSemiconductor’sadvancedPowerTrenchprocessthathasbeenespeciallytailoredtominimizetheon-stateresistanceandyetmaintainsuperiorswitchingperformance. Thesedevicesarewellsuitedforlowvoltagea

FDS6898A

Dual5A,20VSynchronousStep-Down

GENERALDESCRIPTION TheADP2325isafullfeatured,dualoutput,step-downdc-to-dcregulatorbasedonacurrentmodearchitecture.TheADP2325integratestwohigh-sidepowerMOSFETsandtwolow-sidedriversfortheexternalN-channelMOSFETs.Thetwopulse-widthmodulation(PWM)channelscanbe

FDS6898A

Dual3A,20VSynchronousStep-DownRegulatorwithIntegratedHigh-SideMOSFET

GENERALDESCRIPTION TheADP2323isafullfeatured,dualoutput,step-downdc-to-dcregulatorbasedoncurrent-modearchitecture.TheADP2323integratestwohigh-sidepowerMOSFETsandtwolow-sidedriversfortheexternalN-channelMOSFETs.Thetwopulse-widthmodulation(PWM)channelscanbec

FDS6898AZ

DualN-ChannelLogicLevelPWMOptimizedPowerTrenchMOSFET

GeneralDescription TheseN-ChannelLogicLevelMOSFETsareproducedusingFairchildSemiconductor’sadvancedPowerTrenchprocessthathasbeenespeciallytailoredtominimizetheon-stateresistanceandyetmaintainsuperiorswitchingperformance. Thesedevicesarewellsuitedforlowvoltagea

FDS6898AZ

DualN-ChannelLogicLevelPWMOptimizedPowerTrenchMOSFET

GeneralDescription TheseN-ChannelLogicLevelMOSFETsareproducedusingFairchildSemiconductor’sadvancedPowerTrenchprocessthathasbeenespeciallytailoredtominimizetheon-stateresistanceandyetmaintainsuperiorswitchingperformance. Thesedevicesarewellsuitedforlowvoltagea

IRF6898MPBF

HEXFETPowerMOSFETplusSchottkyDiode

IRF6898MTRPBF

HEXFETPowerMOSFETplusSchottkyDiode