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LTC4099 PDF预览

LTC4099

更新时间： 2024-10-01 14:58:03
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
36页 541K
描述
具过压保护功能的 I2C 控制型 USB 电源管理器/充电器

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中文翻译

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LTC4099 数据手册

 浏览型号LTC4099的Datasheet PDF文件第2页浏览型号LTC4099的Datasheet PDF文件第3页浏览型号LTC4099的Datasheet PDF文件第4页浏览型号LTC4099的Datasheet PDF文件第5页浏览型号LTC4099的Datasheet PDF文件第6页浏览型号LTC4099的Datasheet PDF文件第7页 
LTC4099  
2
I C Controlled  
USB Power Manager/Charger  
with Overvoltage Protection  
FeaTures  
DescripTion  
2
ꢀ Switching Regulator with Bat-Track™ Adaptive Output TheꢀLTC®4099ꢀisꢀanꢀI CꢀcontrolledꢀhighꢀefficiencyꢀUSBꢀ  
n
Control Makes Optimal Use of Limited Input Power  
PowerPath™ꢀcontrollerꢀandꢀfull-featuredꢀLi-Ion/Polymerꢀ  
batteryꢀcharger.ꢀItꢀseamlesslyꢀmanagesꢀpowerꢀdistributionꢀ  
fromꢀmultipleꢀsourcesꢀincludingꢀUSB,ꢀaꢀwallꢀadapterꢀandꢀ  
aꢀLi-Ion/Polymerꢀbattery.  
2
n
ꢀ I C Port for Optimal System Performance and  
Status Information  
ꢀ InputꢀOvervoltage Protection  
ꢀ Bat-Track Control of External Step-Down Switching  
Regulator Maximizes Efficiency from Automotive  
and Other High Voltage Sources  
n
n
TheꢀLTC4099ꢀautomaticallyꢀlimitsꢀitsꢀinputꢀcurrentꢀforꢀ  
USBꢀcompatibility.ꢀForꢀautomotiveꢀandꢀotherꢀhighꢀvolt-  
ageꢀapplications,ꢀtheꢀLTC4099ꢀinterfacesꢀwithꢀanꢀexternalꢀ  
switchingꢀregulator.ꢀBothꢀtheꢀUSBꢀinputꢀandꢀtheꢀauxiliaryꢀ  
inputꢀcontrollerꢀfeatureꢀBat-Trackꢀoptimizedꢀchargingꢀtoꢀ  
provideꢀmaximumꢀpowerꢀtoꢀtheꢀapplicationꢀandꢀreducedꢀ  
heatꢀinꢀhighꢀpowerꢀdensityꢀapplications.  
n
ꢀ Instant-On Operation with Low Battery  
ꢀ OptionalꢀOvertemperatureꢀBatteryꢀConditionerꢀ  
ImprovesꢀHighꢀTemperatureꢀBatteryꢀSafetyꢀMargin  
ꢀ IdealꢀDiodeꢀSeamlesslyꢀConnectsꢀBatteryꢀWhenꢀInputꢀ  
PowerꢀisꢀLimitedꢀorꢀUnavailable  
n
n
2
n
n
n
n
TheꢀI Cꢀportꢀallowsꢀdigitalꢀcontrolꢀofꢀimportantꢀapplicationꢀ  
ꢀ Full-FeaturedꢀLi-Ion/PolymerꢀBatteryꢀCharger  
ꢀ 1.5AꢀMaximumꢀChargeꢀCurrentꢀwithꢀThermalꢀLimiting  
ꢀ SlewꢀControlꢀReducesꢀSwitchingꢀEMI  
parametersꢀincludingꢀinputꢀcurrentꢀlimit,ꢀchargeꢀcurrentꢀ  
andꢀfloatꢀvoltage.ꢀSeveralꢀstatusꢀbitsꢀcanꢀalsoꢀbeꢀreadꢀbackꢀ  
2
viaꢀI C.  
ꢀ 20-Leadꢀ3mmꢀ×ꢀ4mmꢀ×ꢀ0.75mmꢀQFNꢀPackage  
AnꢀovervoltageꢀprotectionꢀcircuitꢀguardsꢀtheꢀLTC4099ꢀ  
applicaTions  
fromꢀhighꢀvoltageꢀdamageꢀonꢀtheꢀlowꢀvoltageꢀV ꢀpin.Theꢀ  
BUS  
n
ꢀ MediaꢀPlayers  
LTC4099ꢀisꢀavailableꢀinꢀaꢀ20-Leadꢀ3mmꢀ×ꢀ4mmꢀ×ꢀ0.75mmꢀ  
QFNꢀPackage.  
L,ꢀLT,ꢀLTC,ꢀLTM,ꢀLinearꢀTechnologyꢀandꢀtheꢀLinearꢀlogoꢀareꢀregisteredꢀtrademarksꢀofꢀ  
LinearꢀTechnologyꢀCorporation.ꢀPowerPath,ꢀBat-TrackꢀandꢀThinSOTꢀareꢀtrademarksꢀofꢀLinearꢀ  
TechnologyꢀCorporation.ꢀAllꢀotherꢀtrademarksꢀareꢀtheꢀpropertyꢀofꢀtheirꢀrespectiveꢀowners.ꢀ  
ProtectedꢀbyꢀU.S.ꢀPatents,ꢀincludingꢀ6522118,ꢀ6570372,ꢀ6700364,ꢀ6819094.ꢀOtherꢀpatentsꢀ  
pending.  
n
ꢀ PortableꢀNavigationꢀDevices  
n
ꢀ SmartꢀPhones  
n
ꢀ IndustrialꢀHandhelds  
n
ꢀ PortableꢀMedicalꢀInstruments  
Typical applicaTion  
Reduced Power Dissipation  
vs Linear Battery Charger  
I2C Controlled High Efficiency Battery Charger/  
1.8  
LINEAR BATTERY  
CHARGER  
V
I
= 5V  
CHARGE  
USB Power Manager  
IN  
= 1A  
OVERVOLTAGE  
PROTECTION  
1.6  
1.4  
1.2  
1.0  
0.8  
0.6  
0.4  
0.2  
0
USB  
3.3µH  
SYSTEM  
LOAD  
V
SW  
OUT  
BUS  
10µF  
ADDITIONAL POWER  
AVAILABLE FOR CHARGING  
V
OVGATE  
BAT  
10µF  
LTC4099  
6.2k  
OVSENS  
BATSENS  
NTCBIAS  
NTC  
SWITCHING BATTERY  
CHARGER  
2
2
CLPROG PROG GND  
I C  
TO µCONTROLLER  
100k  
+
0.1µF  
3.01k 1.02k  
100k  
T
Li-Ion  
3.5 3.6 3.7 3.8 3.9  
BATTERY VOLTAGE (V)  
4.1  
3.3 3.4  
4
4099 TA01a  
4099 TA01b  
4099fd  
ꢀ
1234567...36

中文翻译

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