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参数资料
| 型号： | LTC4098EUDC#PBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | BATTERY CHARGE CONTROLLER, 2650 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封装： | 4 X 3 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20 |
| 文件页数： | 1/32页 |
| 文件大小： | 443K |
| 代理商： | LTC4098EUDC#PBF |
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LTC4098/LTC4098-1
1
40981fc
USB Compatible Switching
Power Managers/Li-Ion Chargers
with Overvoltage Protection
The LTC4098/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
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.
n
Media Players
n
GPS
n
PDAs
n
Smart Phones
n
Switching Regulator with Bat-Track Adaptive
Output Control Makes Optimal Use of Limited
Power Available from USB Port to Charge Battery
and Power Application
n
Overvoltage Protection Guards Against Damage
n
Bat-Track External Step-Down Switching Regulator
Control Maximizes Efficiency from Automotive,
Firewire and Other High Voltage Input Sources
n
180m
Ω Internal Ideal Diode Plus External Ideal Diode
Controller Seamlessly Provide Low Loss PowerPath
when Input Power is Limited or Unavailable
n
Preset 4.2V Charge Voltage with 0.5% Accuracy
(4.1V for LTC4098-1)
n
4.1V Float Voltage (LTC4098-1) Improves Battery Life
and High Temperature Safety Margin
n
Instant-On Operation with Discharged Battery
n
700mA Maximum Load Current from USB Port
n
1.5A Maximum Charge Current with Thermal Limiting
n
20-Lead 3mm
× 4mm × 0.75mm QFN Package
High Efficiency USB/Automotive Battery Charger with Overvoltage Protection
USB Switching Regulator Efficiency
to System Load (PVOUT/PVBUS)
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
VBUS
10μF
0.1μF
3.01k
1k
10μF
3.3μH
6.04k
VC
WALL
INPUT
AUTOMOTIVE,
FIREWIRE, ETC.
INPUT
USB
TO μC
SYSTEM
LOAD
40981 TA01a
CLPROG
PROG
LTC4098/LTC4098-1
GND
SW
BATSENS
OVGATE
OVSENS
D0-D2
BAT
VOUT
Li-Ion
+
LT3653
3
IVOUT (A)
0.01
0
EFFICIENCY
(%)
20
40
60
80
0.1
1
40981 TA01b
100
10
30
50
70
90
BAT = 4.2V
BAT = 3.3V
VBUS = 5V
IBAT = 0mA
10x MODE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC4099 | 制造商:LINER 制造商全称:Linear Technology 功能描述:I2C Controlled USB Power Manager/Charger with Overvoltage Protection |
| LTC4099EPDC#PBF | 功能描述:IC USB PWR MANAGER/CHRGR 20UTQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:PowerPath™ 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| LTC4099EPDC#TRMPBF | 制造商:Linear Technology 功能描述: |
| LTC4099EPDC#TRPBF | 功能描述:IC USB PWR MANAGER/CHRGR 20UTQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:PowerPath™ 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| LTC4099EPDC-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:I2C Controlled USB Power Manager/Charger with Overvoltage Protection |
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