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特点
应用程序
描述
TPIC9201N
SLIS115–JULY2005
MICROCONTROLLERPOWERSUPPLYANDMULTIPLELOWSIDEDRIVERIC
微控制器
•
eightlow-sidedriverswithinternalclamp
•
ProgrammablePowerOnResetDelayBefore
forinductiveloadsandcurrentlimitingforrstisassertedhigh,oncethe5viswithin
selfprotectionspecifiedrange(typically6ms)
–SevenOutputsareRatedat150mAand
•
programmablede-glitchtimerbeforen
rst
是
controlledthroughtheserialinterfaceassertedlow(typically40µs)
–OneOutputRatedat150mAandis
•
ZeroVoltageDetectionSignalWithBuiltin
controlledthroughserialand/orparallelfilterof20µs
输入
•
ThermalShutdownforSelfProtection
•
5-v±5%regulatedpowersupplywith
200-maloadcapabilityatv
入点
Maxof18V
•
ACUnit
•
InternalVoltageSupervisoryfortheRegulated
输出
•
WashingMachines
•
RefrigerationSystems
•
serialcommunicationsforcontrolofeight,
LowSideDrivers
•
启用/disableinputforout1
•
5vor3.3v,我/otolerantforinterfaceto
theac-unitpowersupplywithlowsidedriveoutputprovidesregulated5-voutputtopowerthesystem
microcontrolleranddriveuptoeightinductiveand/orresistiveloads.theaczerodetectcircuitryismonitoringthe
十字形-overvoltageofthemainsacsupply.theresultantsignalisalowfrequencyclockoutputonthezvs
terminalbasedontheaclinecycle.thisinformationallowsthemicrocontrollertoreduceinrushcurrentby
poweringloadsontheac-linepeakvoltage.
aserialcommunicationsinterfacecontrolstheeightlowsideoutputs;eachoutputhasaninternalsnubbercircuit
toabsorbtheenergyintheinductoratturnoff.或者,thesystemcanplaceafly-backdiodetov
入点
至
helprecirculatetheenergyinaninductiveloadatturnoff.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productpreviewinformationconcernsproductsintheforma-
copyright©2005,texasinstrumentsincorporated
开发阶段.characteristicdataandother
规范设计目标.texasinstrumentsreservesthe
右更改或中断eseproductswithoutdotice.
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