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參數(shù)資料
| 型號： | LTC4099EPDC#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQCC20 |
| 封裝： | 3 X 4 MM, 0.55 MM HEIGHT, LEAD FREE, PLASTIC, UTQFN-20 |
| 文件頁數(shù)： | 2/36頁 |
| 文件大?。?/td> | 536K |
| 代理商： | LTC4099EPDC#TRPBF |
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LTC4099
0
4099fd
OVGATE (Pin 1): Overvoltage Protection Gate Output.
ConnectOVGATEtothegatepinofanexternalN-channel
MOSFETpasstransistor.Thesourceofthetransistorshould
beconnectedtoVBUSandthedrainshouldbeconnected
totheproduct’sDCinputconnector.Intheabsenceofan
overvoltagecondition,thispinisdrivenfromaninternal
chargepumpcapableofcreatingsufficientoverdriveto
fullyenhancethepasstransistor.Ifanovervoltagecondition
isdetected,OVGATEisbroughtrapidlytoGNDtoprevent
damagetotheLTC4099.OVGATEworksinconjunction
withOVSENStoprovidethisprotection.
NTC (Pin 2):InputtotheNegativeTemperatureCoefficient
ThermistorMonitoringCircuit.TheNTCpinconnectsto
a negative temperature coefficient thermistor which is
typicallycopackagedwiththebatterytodetermineifthe
batteryistoohotortoocoldtocharge.Ifthebattery’s
temperatureisoutofrange,chargingispauseduntilthe
batterytemperaturere-entersthevalidrange.Alowdrift
bias resistor is required from NTCBIAS to NTC and a
thermistorisrequiredfromNTCtoground.
NTCBIAS (Pin 3):NTCThermistorBiasOutput.Connecta
biasresistorbetweenNTCBIASandNTC,andathermistor
betweenNTCandGND.
VC(Pin4):Bat-TrackAuxiliarySwitchingRegulatorControl
Output.ThispindrivestheVCpinofanexternalLinear
Technologystep-downswitchingregulator.Inconjunction
withWALLandACPR,itwillregulateVOUTtomaximize
batterychargerefficiency.
WALL (Pin 5):AuxiliaryPowerSourceSenseInput.WALL
isusedtodeterminewhenpowerisavailablefroman
auxiliarypowersource.Whenpowerisdetected,ACPRis
drivenlowandtheUSBinputisautomaticallydisabled.
BATSENS (Pin 6):BatteryVoltageSenseInput.Forproper
operation,thispinmustalwaysbeconnectedtoBAT.For
bestoperation,connectBATSENStoBATphysicallyclose
totheLi-Ioncell.
PROG(Pin7):ChargeCurrentProgramandChargeCurrent
MonitorPin.ConnectingaresistorfromPROGtoground
programs the charge current. If sufficient input power
is available in constant-current mode, this pin servos
to one of eight possible I2C controllable voltages (see
Table3).Thevoltageonthispinalwaysrepresentsthe
actualchargecurrentbyusingthefollowingformula:
IBAT =
VPROG
RPROG
1030
pin FuncTions
Typical perForMance characTerisTics TA = 25°C, VBUS = 5V, BAT = 3.8V, RPROG = 1.02k,
RCLPROG = 3.01k, unless otherwise noted.
IOUT
500A/DIV
0mA
500s/DIV
4099 G36
VOUT
20mV/DIV
AC-COUPLED
Suspend LDO Transient Response
(500A to 1.5mA)
Battery Charge Current and
Voltage vs Time
Output Voltage vs Battery Voltage;
Battery Charger Overprogrammed
BATTERY VOLTAGE (V)
2.4
OUTPUT
VOL
TAGE
(V)
3.8
4.0
4.2
3.6
3.4
3.0
3.6
2.7
3.3
3.9
4.2
3.2
3.0
4.4
4099 G35
BATTERY CHARGER SET FOR 1200mA
500mA USB
SETTING
100mA USB
SETTING
BATTERY VOLTAGE
TIME (HOURS)
0
BA
TTER
YVOL
TAGE
(V)
BA
TTER
YCURRENT
(A)
4
7
3
2
4
1
3
5
6
8
1
5
0.8
0.6
0.4
0.2
0
1.0
4099 G34
VBUS INPUT LIMIT SET FOR 790mA
BATTERY CHARGER SET FOR 500mA
FLOAT VOLTAGE SET FOR 4.2V
CHARGER TERMINATION
4-HOUR SETTING
500mA
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4099EUDC#PBF | 功能描述:IC USB PWR MANAGER/CHRGR 20-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:PowerPath™ 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 功能:電池監(jiān)控器 電池化學(xué):堿性，鋰離子，鎳鎘，鎳金屬氫化物 電源電壓:1 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:帶卷 (TR) |
| LTC4099EUDC#PBF | 制造商:Linear Technology 功能描述:IC BATTERY CHARGER 1.2A UTQFN-20 |
| LTC4099EUDC#TRPBF | 功能描述:IC USB PWR MANAGER/CHRGR 20-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:PowerPath™ 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件 |
| LTC4100 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Dual Smart Battery System Manager Available in 48-Lead TSSOP Package |
| LTC4100_09 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Smart Battery Charger Controller |
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