參數(shù)資料
型號(hào)： LTC4099EUDC#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, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件頁(yè)數(shù)： 33/36頁(yè)
文件大?。?/td> 536K
代理商： LTC4099EUDC#TRPBF
LTC4099
4099fd
OUTPUT CURRENT (A)
0.01
40
EFFICIENCY
(%)
50
60
70
80
100
0.1
1
4099 G05
90
500mA TO 1.2A
VBUS INPUT LIMIT MODES
100mA VBUS INPUT
LIMIT MODE
VCLPROG = 0V
Battery and VBUS Currents
vs Output Current
Battery Charging Efficiency
vs Battery Voltage with No
External Load (PBAT/PVBUS)
TA = 25°C, VBUS = 5V, BAT = 3.8V, RPROG = 1.02k,
RCLPROG = 3.01k, unless otherwise noted.
BATTERY VOLTAGE (V)
2.7
50
EFFICIENCY
(%)
70
90
3.0
3.3
3.9
3.6
60
80
100
4.2
4099 G06
500mA USB SETTING
100mA USB SETTING
Battery and VBUS Currents
vs Output Current
Output Voltage vs Output Current
PowerPath Switching Regulator
Efficiency vs Output Current
Typical perForMance characTerisTics
OUTPUT CURRENT (mA)
0
CURRENT
(mA)
400
600
800
4099 G01
200
0
–600
–200
–400
200
400
600
1000
BATTERY
CURRENT
(CHARGING)
BATTERY
CURRENT
(DISCHARGING)
VBUS INPUT LIMIT SET
FOR USB 500mA
BATTERY CHARGER SET
FOR 800mA
VBUS CURRENT
OUTPUT CURRENT (mA)
0
CURRENT
(mA) 400
600
800
4099 G02
200
0
–200
200
400
600
1000
BATTERY
CURRENT
(CHARGING)
BATTERY
CURRENT
(DISCHARGING)
VBUS INPUT LIMIT SET
FOR 790mA
BATTERY CHARGER SET
FOR 500mA
VBUS CURRENT
OUTPUT CURRENT (mA)
0
OUTPUT
VOL
TAGE
(V)
4.0
4.5
5.0
800
4099 G03
3.5
3.0
200
400
600
1000
VBUS INPUT LIMIT SET
FOR USB 500mA
BATTERY CHARGER DISABLED
BAT = 4V
BAT = 3.4V
BATTERY VOLTAGE (V)
2.7
0
BATTERY
CURRENT
(A)
10
20
3.0
3.3
3.9
3.6
5
15
25
4.2
4099 G04
IVOUT = 0A
VBUS = 0V
VBUS = 5V
(SUSPEND MODES)
Battery Drain Current
vs Battery Voltage
Note 1:StressesbeyondthoselistedunderAbsoluteMaximumRatings
maycausepermanentdamagetothedevice.ExposuretoanyAbsolute
MaximumRatingconditionforextendedperiodsmayaffectdevice
reliabilityandlifetime.
Note 2:TheLTC4099isguaranteedtomeetperformancespecifications
from0°Cto85°C.Specificationsoverthe–40°Cto85°Coperating
temperaturerangeareassuredbydesign,characterizationandcorrelation
withstatisticalprocesscontrols.
Note 3: TheLTC4099includesovertemperatureprotectionthatisintended
toprotectthedeviceduringmomentaryoverloadconditions.Junction
temperaturewillexceed125°Cwhenovertemperatureprotectionisactive.
Continuousoperationabovethespecifiedmaximumoperatingjunction
temperaturemayimpairdevicereliability.
Note 4:Totalinputcurrentisthesumofquiescentcurrent,IVBUSQ,and
measuredcurrentgivenby:
VCLPROG/RCLPROG(hCLPROG+1)
Note 5:ThePROGpinalwaysrepresentsactualchargecurrent.Seethe
FullCapacityChargeIndication(C/x)section.
elecTrical characTerisTics
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