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參數(shù)資料
| 型號： | LTC4001-1EUF#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQCC16 |
| 封裝： | 4 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, MO-220WGGC, QFN-16 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 227K |
| 代理商： | LTC4001-1EUF#TRPBF |
1
LTC4001-1
40011f
■ Handheld Battery-Powered Devices
■ Handheld Computers
■ Charging Docks and Cradles
■ Digital Cameras
■ Smart Phones
2A Single Cell Li-Ion Battery Charger
2A Synchronous
Buck Li-Ion Charger
■ Low Power Dissipation
■ 2A Maximum Charge Current
■ No External MOSFETs, Sense Resistor or Blocking
Diode Required
■ Remote Sensing at Battery Terminals
■ Programmable Charge Termination Timer
■ Preset 4.1V Float Voltage with
±0.5% Accuracy
■ 4.1V Float Voltage Improves Battery Life and High
Temperature Safety Margin
■ Programmable Charge Current Detection/Termination
■ Automatic Recharge
■ Thermistor Input for Temperature Qualified Charging
■ Compatible with Current Limited Wall Adapters
■ Low Profile 16-Lead (4mm
× 4mm) QFN Package
Power Loss vs VBAT
Charging (PWM Mode)
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
The LTC
4001-1 is a 2A Li-Ion battery charger intended for
5V wall adapters. It utilizes a 1.5MHz synchronous buck
converter topology to reduce power dissipation during
charging. Low power dissipation, an internal MOSFET and
sense resistor allow a physically small charger that can be
embedded in a wide range of handheld applications. The
LTC4001-1 includes complete charge termination cir-
cuitry, automatic recharge and a
±1% 4.1V float voltage.
Input short-circuit protection is included so no blocking
diode is required.
This 4.1V version of the standard LTC4001 is intended for
applications which will be operated or stored above ap-
proximately 60
°C.Undertheseconditions,thereducedfloat
voltage will trade-off initial cell capacity for the benefit of
increased capacity retention over the life of the battery. A
reduced float voltage also minimizes swelling in prismatic
and polymer cells, and avoids open CID (pressure fuse) in
cylindrical cells.
Battery charge current, charge timeout and end-of-charge
indication parameters are set with external components.
Additional features include shorted cell detection, tempera-
ture qualified charging and overvoltage protection. The
LTC4001-1 is available in a low profile (0.75mm) 16-lead
(4mm
× 4mm) QFN package.
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
+
PROG
EN
FAULT
NTC
CHRG
PGND
PVIN
VINSENSE
BAT
BATSENS
IDET TIMER
274
0.22
F
10
F
40011 TA01a
4.1V
Li-Ion
10
F
VIN
4.5V TO 5.5V
0.1
F
SS
SW
SENSE
LTC4001-1
1.5
H
GNDSENS
VBAT (V)
3
TOTAL
APPLICATION
CIRCUIT
POWER
DISSIPATION
(W) 0.75
1.00
1.25
4
40011 TA01b
0.50
0.25
0
3.25
3.5
3.75
4.25
VIN = 5V
2A CHARGER
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC4001EUF | 制造商:Linear Technology 功能描述:Battery Charger Li-Ion/Li-Pol 2000mA 4.2V 16-Pin QFN EP |
| LTC4001EUF#PBF | 功能描述:IC CHARGER LI-ION BUCK 16-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準包裝:4,000 系列:- 功能:燃料，電量檢測計/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2 |
| LTC4001EUF#TRPBF | 功能描述:IC CHARGER LI-ION BUCK 16-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準包裝: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 |
| LTC4001EUF-1#PBF | 功能描述:IC CHARGER LI-ION BUCK 16-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準包裝: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 |
| LTC4001EUF-1#PBF | 制造商:Linear Technology 功能描述:IC BATT CHARGER SW MODE 16QFN |
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