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LTC4098EPDC-TRPBF PDF预览

LTC4098EPDC-TRPBF

更新时间： 2024-02-08 17:22:27
品牌 Logo 应用领域
凌特 - Linear 电池开关
页数 文件大小 规格书
32页 414K
描述
USB Compatible Switching Power Managers/Li-Ion Chargers with Overvoltage Protection

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中文翻译

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LTC4098EPDC-TRPBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：QFN包装说明：HVQCCN,
针数：20Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：3.57模拟集成电路 - 其他类型：BATTERY CHARGE CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：5.5 V最小输入电压：4.35 V
标称输入电压：5 VJESD-30 代码：R-PQCC-N20
JESD-609代码：e3长度：4 mm
湿度敏感等级：1功能数量：1
端子数量：20最高工作温度：85 °C
最低工作温度：-40 °C封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装形状：RECTANGULAR
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
认证状态：Not Qualified座面最大高度：0.8 mm
表面贴装：YES切换器配置：BUCK-BOOST
最大切换频率：2650 kHz技术：CMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
宽度：3 mmBase Number Matches：1

LTC4098EPDC-TRPBF 数据手册

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LTC4098/LTC4098-1  
USB Compatible Switching  
Power Managers/Li-Ion Chargers  
with Overvoltage Protection  
DESCRIPTION  
FEATURES  
Switching Regulator with Bat-TrackTM 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  
180mΩ Internal Ideal Diode Plus External Ideal Diode  
Controller Seamlessly Provide Low Loss PowerPathTM  
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  
Ultra-Thin (0.55mm) 20-Lead 3mm × 4mm QFN  
The LTC®4098/LTC4098-1 are high efficiency USB Power-  
Path controllers and full-featured Li-Ion/Polymer battery  
chargers.Theyseamlesslymanagepowerdistributionfrom  
multiple sources including USB, wall adapter, automotive,  
Firewire or other high voltage DC/DC converters, and a  
Li-Ion/Polymer battery.  
n
n
n
The LTC4098/LTC4098-1’s internal switching regulator  
automaticallylimitsitsinputcurrentforUSBcompatibility.  
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.  
n
n
n
n
n
n
n
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.  
APPLICATIONS  
The LTC4098/LTC4098-1 are available in the ultra-thin  
(0.55mm) 20-lead 3mm × 4mm QFN surface mount  
package.  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
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  
Smart Phones  
n
TYPICAL APPLICATION  
High Efficiency USB/Automotive Battery Charger with Overvoltage Protection  
USB Switching Regulator Efficiency  
to System Load (PVOUT/PVBUS  
)
INPUT  
AUTOMOTIVE,  
FIREWIRE, ETC.  
100  
LT3653  
90  
80  
70  
60  
50  
40  
30  
20  
10  
0
3.3μH  
SYSTEM  
LOAD  
INPUT  
USB  
BAT = 4.2V  
V
V
WALL  
SW  
V
BUS  
C
10μF  
BAT = 3.3V  
OVGATE  
OVSENS  
D0-D2  
OUT  
LTC4098/LTC4098-1  
6.04k  
3
TO μC  
BAT  
CLPROG  
PROG  
GND BATSENS  
10μF  
V
I
= 5V  
BUS  
= 0mA  
BAT  
10x MODE  
+
0.1μF 3.01k  
1k  
Li-Ion  
0.01  
0.1  
1
40981 TA01a  
I
(A)  
VOUT  
40981 TA01b  
40981fb  
1
1234567...32

中文翻译

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