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LTC3677-3 PDF预览

LTC3677-3

更新时间： 2024-10-03 11:50:31
品牌 Logo 应用领域
凌特 - Linear 集成电源管理电路便携式
页数 文件大小 规格书
44页 4109K
描述
Highly Integrated Portable Product PMIC

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中文翻译

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LTC3677-3 数据手册

 浏览型号LTC3677-3的Datasheet PDF文件第2页浏览型号LTC3677-3的Datasheet PDF文件第3页浏览型号LTC3677-3的Datasheet PDF文件第4页浏览型号LTC3677-3的Datasheet PDF文件第5页浏览型号LTC3677-3的Datasheet PDF文件第6页浏览型号LTC3677-3的Datasheet PDF文件第7页 
LTC3677-3  
Highly Integrated  
Portable Product PMIC  
FeaTures  
DescripTion  
TheꢀLTC®3677-3ꢀisꢀaꢀhighlyꢀintegratedꢀpowerꢀmanagementꢀ  
ICꢀ forꢀ single-cellꢀ Li-Ion/Polymerꢀ batteryꢀ applications.ꢀ  
ItꢀincludesꢀaꢀPowerPathꢀmanagerꢀwithꢀautomaticꢀloadꢀ  
prioritization,ꢀaꢀbatteryꢀcharger,ꢀanꢀidealꢀdiode,ꢀinputꢀover-  
voltageꢀprotectionꢀandꢀnumerousꢀotherꢀinternalꢀprotectionꢀ  
features.ꢀTheꢀLTC3677-3ꢀisꢀdesignedꢀtoꢀaccuratelyꢀchargeꢀ  
fromꢀcurrentꢀlimitedꢀsuppliesꢀsuchꢀasꢀUSBꢀbyꢀautomaticallyꢀ  
reducingꢀchargeꢀcurrentꢀsuchꢀthatꢀtheꢀsumꢀofꢀtheꢀloadꢀ  
currentꢀandꢀtheꢀchargeꢀcurrentꢀdoesꢀnotꢀexceedꢀtheꢀpro-  
grammedꢀinputꢀcurrentꢀlimitꢀ(100mAꢀorꢀ500mAꢀmodes).ꢀ  
TheꢀLTC3677-3ꢀreducesꢀtheꢀbatteryꢀvoltageꢀatꢀelevatedꢀ  
temperaturesꢀtoꢀimproveꢀsafetyꢀandꢀreliability.ꢀTheꢀthreeꢀ  
step-downꢀswitchingꢀregulatorsꢀandꢀtwoꢀLDOsꢀprovideꢀ  
aꢀwideꢀrangeꢀofꢀavailableꢀsupplies.ꢀTheꢀLTC3677-3ꢀalsoꢀ  
includesꢀaꢀpushbuttonꢀinputꢀtoꢀcontrolꢀpowerꢀsequencingꢀ  
andꢀsystemꢀreset.ꢀTheꢀLTC3677-3ꢀhasꢀpushbuttonꢀtim-  
ingꢀandꢀsequencingꢀdesignedꢀtoꢀsupportꢀtheꢀSiRFꢀAtlasꢀ  
IVꢀprocessor.ꢀTheꢀLTC3677-3ꢀisꢀavailableꢀinꢀaꢀlowꢀprofileꢀ  
4mmꢀ×ꢀ7mmꢀ×ꢀ0.75mmꢀ44-pinꢀQFNꢀpackage.  
n
ꢀ Full Featured Li-Ion/Polymer Charger/PowerPath™  
Controller with Instant-On Operation  
n
ꢀ Triple Adjustable High Efficiency Step-Down  
Switching Regulators (800mA, 500mA, 500mA I  
)
OUT  
2
n
n
ꢀ I C Adjustable SW Slew Rates for EMI Reduction  
ꢀ High Temperature Battery Voltage Reduction  
Improves Safety and Reliability  
n
ꢀ OvervoltageꢀProtectionꢀControllerꢀforꢀUSBꢀ(V )/Wallꢀ  
BUS  
InputsꢀProvideꢀProtectionꢀtoꢀ30V  
ꢀ 1.5AꢀMaximumꢀChargeꢀCurrentꢀwithꢀThermalꢀLimiting  
ꢀ BatteryꢀFloatꢀVoltage:ꢀ4.2V  
n
n
n
n
n
ꢀ PushbuttonꢀON/OFFꢀControlꢀwithꢀSystemꢀReset  
ꢀ Dualꢀ150mAꢀCurrentꢀLimitedꢀLDOs  
ꢀ Start-UpꢀTimingꢀCompatibleꢀwithꢀSiRFꢀAtlasꢀIVꢀ  
Processor  
n
ꢀ Smallꢀ4mmꢀ×ꢀ7mmꢀꢀ44-PinꢀQFNꢀPackage  
applicaTions  
n
ꢀ PNDs,ꢀDMB/DVB-H,ꢀDigital/SatelliteꢀRadio,ꢀꢀ  
MediaꢀPlayers  
L,ꢀLT,ꢀLTC,ꢀLTM,ꢀLinearꢀTechnology,ꢀPowerPath,ꢀBurstꢀModeꢀandꢀtheꢀLinearꢀlogoꢀareꢀregisteredꢀ  
trademarksꢀandꢀBat-TrackꢀandꢀHotꢀSwapꢀareꢀtrademarksꢀofꢀLinearꢀTechnologyꢀCorporation.ꢀ  
Allꢀotherꢀtrademarksꢀareꢀtheꢀpropertyꢀofꢀtheirꢀrespectiveꢀowners.ꢀProtectedꢀbyꢀU.S.ꢀPatents,ꢀ  
includingꢀ6522118,ꢀ6700364,ꢀ7511390,ꢀ5481178,ꢀ6580258.ꢀOtherꢀpatentsꢀpending.  
n
ꢀ PortableꢀIndustrial/MedicalꢀProducts  
ꢀ OtherꢀUSB-BasedꢀHandheldꢀProducts  
n
Typical applicaTion  
High Temperature BAT Discharge  
5V  
ADAPTER  
OPTIONAL  
200  
100mA/500mA  
V
V
< V  
TOO_HOT  
= 0V  
NTC  
BUS  
USB  
1000mA  
180  
160  
140  
120  
100  
80  
V
OUT  
0V  
OVERVOLTAGE  
PROTECTION  
CC/CV  
CHARGER  
+
SINGLE-CELL  
Li-Ion  
CHARGE  
NTC  
LTC3677-3  
2
0.8V to 3.6V/150mA  
0.8V to 3.6V/150mA  
DUAL LDO  
2
I C PORT  
REGULATORS  
60  
TRIPLE HIGH  
EFFICIENCY  
STEP-DOWN  
SWITCHING  
REGULATORS  
40  
0.8V to 3.6V/800mA  
0.8V to 3.6V/500mA  
0.8V to 3.6V/500mA  
PUSHBUTTON  
CONTROL  
20  
PB  
0
36773 TA01a  
3.8  
3.9  
4.0  
(V)  
4.2  
4.1  
V
BAT  
36773 TA01b  
36773f  
ꢀ
1234567...44

中文翻译

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