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参数资料
型号： LTC4098EPDC#PBF
厂商： Linear Technology
文件页数： 1/32页
文件大小： 0K
描述： IC CHARGER USB COMP 20-UTQFN
标准包装： 91
系列： Bat-Track™, PowerPath™
功能： 电源管理
电池化学： 锂离子（Li-Ion）、锂聚合物（Li-Pol）
电源电压： 4.35 V ~ 5.5 V
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 20-UFQFN 裸露焊盘
供应商设备封装： 20-UTQFN-EP（3x4）
包装： 管件
LTC4098/LTC4098-1
USB Compatible Switching
Power Managers/Li-Ion Chargers
with Overvoltage Protection
FEATURES
DESCRIPTION
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Switching Regulator with Bat-Track? Adaptive
Output Control Makes Optimal Use of Limited
Power Available from USB Port to Charge Battery
and Power Application
Overvoltage Protection Guards Against Damage
Bat-Track External Step-Down Switching Regulator
Control Maximizes Efficiency from Automotive,
Firewire and Other High Voltage Input Sources
180m Ω Internal Ideal Diode Plus External Ideal Diode
Controller Seamlessly Provide Low Loss PowerPath?
when Input Power is Limited or Unavailable
Preset 4.2V Charge Voltage with 0.5% Accuracy
(4.1V for LTC4098-1)
4.1V Float Voltage (LTC4098-1) Improves Battery Life
and High Temperature Safety Margin
Instant-On Operation with Discharged Battery
700mA Maximum Load Current from USB Port
1.5A Maximum Charge Current with Thermal Limiting
The LTC ? 4098/LTC4098-1 are high efficiency USB Power-
Path controllers and full-featured Li-Ion/Polymer battery
chargers. They seamlessly manage power distribution from
multiple sources including USB, wall adapter, automotive,
Firewire or other high voltage DC/DC converters, and a
Li-Ion/Polymer battery.
The LTC4098/LTC4098-1’s internal switching regulator
automatically limits its input current for USB compatibility.
For automotive and other high voltage applications, the
LTC4098/LTC4098-1 interface with a Linear Technology
external switching regulator to provide a high efficiency
high voltage power path. Both the USB and the optional
high voltage inputs feature Bat-Track optimized charging
to provide maximum power to the application and ease
thermal issues in high power density applications with
input supplies from 5V to as high as 38V.
An overvoltage circuit protects the LTC4098/LTC4098-1
20-Lead 3mm × 4mm × 0.75mm QFN Package
n
APPLICATIONS
n Media Players
n GPS
n PDAs
n Smart Phones
TYPICAL APPLICATION
from high voltage damage on the USB/wall adaptor inputs
with an N-channel FET and a resistor.
The LTC4098/LTC4098-1 are available in a 20-lead, 3mm
× 4mm × 0.75mm QFN surface mount package.
L , LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
Bat-Track and PowerPath are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
High Efficiency USB/Automotive Battery Charger with Overvoltage Protection
USB Switching Regulator Efficiency
INPUT
AUTOMOTIVE,
FIREWIRE, ETC.
LT3653
3.3μH
SYSTEM
LOAD
100
90
80
to System Load (P VOUT /P VBUS )
INPUT
USB
10μF
6.04k
V BUS
OVGATE
OVSENS
V C WALL
LTC4098/LTC4098-1
SW
V OUT
70
60
50
40
BAT = 4.2V
BAT = 3.3V
TO μC
3
D0-D2
CLPROG
PROG
GND
BATSENS
BAT
10μF
30
20
V BUS = 5V
10
I BAT = 0mA
0.1μF
3.01k
1k
Li-Ion
+
10x MODE
0
0.01
0.1
1
40981 TA01a
I VOUT (A)
40981 TA01b
40981fc
1
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相关代理商/技术参数
参数描述
LTC4098EPDC-TRPBF 制造商:LINER 制造商全称:Linear Technology 功能描述:USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection
LTC4098EUDC#PBF 功能描述:IC CHARGER USB COMP 20-UTQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:Bat-Track™, PowerPath™ 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2
LTC4098EUDC#TRPBF 功能描述:IC CHARGER USB COMP 20-UTQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:Bat-Track™, PowerPath™ 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件
LTC4098EUDC-1#PBF 功能描述:IC CHARGER USB COMP 20-UTQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:Bat-Track™, PowerPath™ 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件
LTC4098EUDC-1#TRPBF 功能描述:IC CHARGER USB COMP 20-UTQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:Bat-Track™, PowerPath™ 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件
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