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參數(shù)資料
| 型號(hào)： | LTC4088EDE-1#TR |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO14 |
| 封裝： | 4 X 3 MM, 0.75 MM HEIGHT, PLASTIC, MO-229WGED-3, DFN-14 |
| 文件頁(yè)數(shù)： | 1/24頁(yè) |
| 文件大小： | 906K |
| 代理商： | LTC4088EDE-1#TR |
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LTC4088-1
40881fa
High Efficiency Battery
Charger/USB Power Manager
with Regulated Output Voltage
The LTC4088-1 is a high efficiency USB PowerPathTM
controller and Li-Ion/Polymer battery charger. It includes
a synchronous switching input regulator, a full-featured
batterychargerandanidealdiode.Designedspecificallyfor
USBapplications,theLTC4088-1’sswitchingregulatorau-
tomaticallylimitsitsinputcurrenttoeither100mA,500mA
or 1A for wall-powered applications via logic control.
The switching input stage provides power to VOUT where
power sharing between the application circuit and the bat-
tery charger is managed. Charge current is automatically
reduced to maintain a regulated 3.6V VOUT during low-
battery conditions. As the battery is charged, VOUT tracks
VBAT for high efficiency charging. This feature allows the
LTC4088-1 to provide more power to the application and
eases thermal issues in constrained applications.
An ideal diode ensures that system power is available
from the battery when the input current limit is reached
or if the USB or wall supply is removed.
The LTC4088-1 is available in the low profile 14-Lead
4mm
× 3mm × 0.75mm DFN surface mount package.
■
Media Players
■
Digital Cameras
■
GPS
■
PDAs
■
Smart Phones
■
Switching Regulator Makes Optimal Use of Limited
Power Available from USB Port to Charge Battery
and Power Application
■
180m
Ω Internal Ideal Diode Plus External Ideal
Diode Controller Seamlessly Provide Low Loss
Power Path When Input Power is Limited or
Unavailable
■
Automatic Charge Current Reduction Maintains
3.6V Minimum VOUT
■
Full Featured Li-Ion/Polymer Battery Charger
■
VBUS Operating Range: 4.25V to 5.5V (7V Absolute
Maximum—Transient)
■
1.2A Maximum Input Current Limit
■
1.5A Maximum Charge Current with Thermal Limiting
■
Bat-TrackTM Adaptive Output Control
■
Slew Control Reduces Switching EMI
■
Low Profile (0.75mm) 14-Lead 4mm
× 3mm DFN
Package
High Efficiency Battery Charger/USB Power Manager
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
PowerPath and Bat-Track are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 6522118
VBUS
VOUT
10
F
WALL
USB
0.1
F
10
F
SYSTEM
LOAD
2.94k
499
40881 TA01a
CLPROG
8.2
PROG
LTC4088-1
C/X GND
SW
3.3
H
NTC
D0
D1
D2
CHRG
VOUTS
GATE
BAT
+
Li-Ion
Switching Regulator Efficiency to
System Load (POUT/PBUS)
IOUT (A)
0.01
0
EFFICIENCY
(%)
20
40
60
80
0.1
1
40881 TA01b
100
10
30
50
70
90
BAT = 4.2V
BAT = 3.3V
VBUS = 5V
IBAT = 0mA
10x MODE
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC4088EDE | 3 A BATTERY CHARGE CONTROLLER, 2.7 kHz SWITCHING FREQ-MAX, PDSO14 |
| LTC4096EDD#PBF | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10 |
| LTC4269CDKD-2#TR | SWITCHING CONTROLLER, 560 kHz SWITCHING FREQ-MAX, PDSO32 |
| LTC4269IDKD-2 | SWITCHING CONTROLLER, 560 kHz SWITCHING FREQ-MAX, PDSO32 |
| LTC4269CDKD-2 | SWITCHING CONTROLLER, 560 kHz SWITCHING FREQ-MAX, PDSO32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4088EDE-1-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency Battery Charger/USB Power Manager with Regulated Output Voltage |
| LTC4088EDE-2#PBF | 功能描述:IC CHRGR BATT HE 14-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 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(pán) 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤(pán) 包裝:管件 |
| LTC4088EDE-2#TRPBF | 功能描述:IC CHRGR BATT HE 14-DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 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(pán) 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤(pán) 包裝:管件 |
| LTC4088EDE-2-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency Battery Charger/USB Power Manager with Regulated Output Voltage |
| LTC4088EDE-2-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:High Effi ciency Battery Charger/USB Power Manager with Regulated Output Voltage |
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