- 您现在的位置：买卖IC网 > PDF目录80116 > LTC4266CGW#TRPBF (LINEAR TECHNOLOGY CORP) POWER SUPPLY MANAGEMENT CKT, PDSO36 PDF资料下载
参数资料
| 型号： | LTC4266CGW#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY MANAGEMENT CKT, PDSO36 |
| 封装： | 0.300 INCH, LEAD FREE, PLASTIC, SSOP-36 |
| 文件页数： | 5/30页 |
| 文件大小： | 414K |
| 代理商： | LTC4266CGW#TRPBF |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页
LTC4266
4266fa
pin Functions
RESET:ChipReset,ActiveLow.WhentheRESETpinis
low,theLTC4266isheldinactivewithallportsoffandall
internalregistersresettotheirpower-upstates.When
RESETispulledhigh,theLTC4266beginsnormalopera-
tion.RESETcanbeconnectedtoanexternalcapacitor
orRCnetworktoprovideapowerturn-ondelay.Internal
filteringoftheRESETpinpreventsglitcheslessthan1s
widefromresettingtheLTC4266.Internallypulledupto
VDD.
MID:MidspanModeInput.Whenhigh,theLTC4266acts
asamidspandevice.InternallypulleddowntoDGND.
INT:InterruptOutput,OpenDrain.INTwillpulllowwhen
anyoneofseveraleventsoccurintheLTC4266.Itwill
returntoahighimpedancestatewhenbits6or7areset
intheResetPBregister(1Ah).TheINTsignalcanbeused
togenerateaninterrupttothehostprocessor,eliminating
theneedforcontinuoussoftwarepolling.IndividualINT
eventscanbedisabledusingtheIntMaskregister(01h).
SeeRegisterFunctionsandApplicationsInformationfor
moreinformation.TheINTpinisonlyupdatedbetween
I2Ctransactions.
SCL:SerialClockInput.Highimpedanceclockinputfor
theI2Cserialinterfacebus.SCLmustbetiedhighifnot
used.
SDAOUT:SerialDataOutput,OpenDrainDataOutputfor
theI2CSerialInterfaceBus.TheLTC4266usestwopins
toimplementthebidirectionalSDAfunctiontosimplify
optoisolationoftheI2Cbus.Toimplementastandard
bidirectionalSDApin,tieSDAOUTandSDAINtogether.
SDAOUTshouldbegroundedorleftfloatingifnotused.
SeeApplicationsInformationformoreinformation.
SDAIN:SerialDataInput.Highimpedancedatainputfor
theI2Cserialinterfacebus.TheLTC4266usestwopins
toimplementthebidirectionalSDAfunctiontosimplify
optoisolationoftheI2Cbus.Toimplementastandard
bidirectionalSDApin,tieSDAOUTandSDAINtogether.
SDAINmustbetiedhighifnotused.SeeApplications
Informationformoreinformation.
AD3:AddressBit3.Tietheaddresspinshighorlowto
settheI2CserialaddresstowhichtheLTC4266responds.
Thisaddresswillbe010A3A2A1A0b.Internallypulledup
toVDD.
AD2:AddressBit2.SeeAD3.
AD1:AddressBit1.SeeAD3.
AD0:AddressBit0.SeeAD3.
NC,DNC:Allpinsidentifiedwith“NC”or“DNC”mustbe
leftunconnected.
DGND:DigitalGround.DGNDisthereturnfortheVDD
supply.
VDD:LogicPowerSupply.Connecttoa3.3Vpowersupply
relativetoDGND.VDDmustbebypassedtoDGNDnear
theLTC4266withatleasta0.1Fcapacitor.
SHDN1:ShutdownPort1,ActiveLow.Whenpulledlow,
SHDN1shutsdownport1,regardlessofthestateofthe
internalregisters.PullingSHDN1lowisequivalenttoset-
tingtheResetPort1bitintheResetPushbuttonregister
(1Ah).InternalfilteringoftheSHDN1pinpreventsglitches
lessthan1swidefromresetingtheport.Internallypulled
uptoVDD.
SHDN2:ShutdownPort2,ActiveLow.SeeSHDN1.
SHDN3:ShutdownPort3,ActiveLow.SeeSHDN1.
SHDN4:ShutdownPort4,ActiveLow.SeeSHDN1.
AGND:AnalogGround.AGNDisthereturnfortheVEE
supply.
SENSE4:Port4CurrentSenseInput.SENSE4monitors
theexternalMOSFETcurrentviaa0.5or0.25Ωsense
resistorbetweenSENSE4andVEE.Wheneverthevoltage
acrossthesenseresistorexceedstheovercurrentdetection
thresholdVCUT,thecurrentlimitfaulttimercountsup.If
thevoltageacrossthesenseresistorreachesthecurrent
limitthresholdVLIM,theGATE4pinvoltageisloweredto
maintainconstantcurrentintheexternalMOSFET.See
ApplicationsInformationforfurtherdetails.Iftheportis
unused,theSENSE4pinmustbetiedtoVEE.
相关PDF资料 |
PDF描述 |
|---|---|
| LTC4266IGW#PBF | POWER SUPPLY MANAGEMENT CKT, PDSO36 |
| LS4301-7EPD9T | 1-OUTPUT 100 W AC-DC PWR FACTOR CORR MODULE |
| LS5540-7EPD4T | 2-OUTPUT 100 W AC-DC PWR FACTOR CORR MODULE |
| LT1740-7PDGB1 | 1-OUTPUT AC-DC REG PWR SUPPLY MODULE |
| LSN-2.5/10-D12BJ | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4266CIUHF#PBF | 功能描述:IC CONTROLLER PSE QUAD 38-QFN RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:2,450 系列:- 控制器类型:SPI 总线至 I²C 总线桥接 接口:I²C，串行，SPI 电源电压:2.4 V ~ 3.6 V 电流 - 电源:11mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-HVQFN（4x4） 包装:托盘 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名称:935286452157SC18IS600IBSSC18IS600IBS-ND |
| LTC4266CIUHF#TRPBF | 功能描述:IC CONTROLLER PSE QUAD 38-QFN RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:2,450 系列:- 控制器类型:SPI 总线至 I²C 总线桥接 接口:I²C，串行，SPI 电源电压:2.4 V ~ 3.6 V 电流 - 电源:11mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-HVQFN（4x4） 包装:托盘 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名称:935286452157SC18IS600IBSSC18IS600IBS-ND |
| LTC4266CUHF#PBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP 制造商:Linear Technology 功能描述:IC POE CONTROLLER 3.3V QFN-38 制造商:Linear Technology 功能描述:IC, POE CONTROLLER, 3.3V, QFN-38; Input Voltage:3.3V; Supply Current:-2.4mA; UVLO:25V; Digital IC Case Style:QFN; No. of Pins:38; Frequency:1MHz; Operating Temperature Min:0C; Operating Temperature Max:70C; MSL:MSL 1 - Unlimited ;RoHS Compliant: Yes |
| LTC4266CUHF#TRPBF | 制造商:Linear Technology 功能描述:POE Controller 25.5W 38-Pin QFN EP |
| LTC4266IGW#PBF | 功能描述:IC CTRLR IEEE 802.3AT 36-SSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 控制器 系列:- 标准包装:2,450 系列:- 控制器类型:SPI 总线至 I²C 总线桥接 接口:I²C，串行，SPI 电源电压:2.4 V ~ 3.6 V 电流 - 电源:11mA 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-HVQFN（4x4） 包装:托盘 配用:568-3511-ND - DEMO BOARD SPI TO I2C 其它名称:935286452157SC18IS600IBSSC18IS600IBS-ND |
发布紧急采购，3分钟左右您将得到回复。