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FEATURESAPPLICATIONS
描述
TPS65520
SLVS557A–MARCH2005–REVISEDMARCH2005
POWERMANAGEMENTICFORDIGITALSTILLCAMERA
•
DigitalStillCameras
•
highlyefficient,8-channelpower
ManagementIC
•
FullyIntegratedPowerMOSFETs
(exceptch-7)
thetps65520isahighlyefficient,8-channelpower
managementicfordigitalstillcameras(dscs)inte-
•
MinimalExternalComponents
gratingpowerMOSFETsandoperatingfromaninput
•
inputvoltagerange:1.5to5v
voltagerangeof1.5to5v.
•
shortcircuitprotection(scp)
Itsoptimizedcircuitconfigurationmaintainsstable
(exceptforch-6andch-8)
regulationcharacteristicswhileminimizingthenum-
•
overvoltageprotection(ovp)
berofexternalcomponentsrequiredforphasecom-
(ch-2,ch-3,ch-6,andch-7)
pensationandotherpurposes.
•
overcurrentprotection(ocp)(ch-6)
TheTPS65520controlseachoutputchannelby
•
thermalshutdown(tsd)
communicatingwiththesub-cputhroughaserial
接口.
•
高-accuracyoutputvoltagewithtrimming
•
8mmx8mmBGAPackage
CIRCUITOUTPUTADJUSTABLEPOWER
姓名
(1)
RECTIFICATIONPURPOSE
CONFIGURATIONVOLTAGE[V]PARAMETERMOSFET
ch-1h-bridgestep-向上/down2.65~3.2outputvoltagebuilt-insynchronouscpu,dspi/f
ch-2step-down1.1~1.8outputvoltagebuilt-insynchronouscpu,dspcore
输出电压,
ch-3step-up4.5~5.2built-insynchronousmotor,音频
dutycycle
异步,与
输出电压,
ch-4step-up15.0~16,5built-inexternalrectificationlcd,ccd
dutycycle
二极管
异步,与
输出电压,
ch-5inversion–9.0~–7.5built-inexternalrectificationlcd,ccd
dutycycle
二极管
异步,与
步骤-upwithconstantoutputvoltage,
ch-65.6~21.0built-inexternalrectificationbacklightled
currentcontroldutycycle
二极管
步骤-down2.5~3.2
输出电压,
ch-7externalsynchronousreserved/可切换
dutycycle
步骤-up4.4~5.1
步骤-向上/通过-通过
ch-83.6~vccbuilt-insynchronousicinternalpowersupply
withskip
ldo-12.9sub-cpui/f
ldo-22.9sub-cpucore
ldo-33.1chargebackupbattery
ldo-43.1usb
ldo-58.5~13.5outputvoltagelcd
(1)ch-nrepresentsswitchingregulators.ldo-nrepresentsseriesregulators.
pleasebeawarethatanimportantnoticeconcerningavailability,标准保修,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
productiondatainformationiscurrentasofpublicationdate.
copyright©2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
必要包括测试所有参数.
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