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LTC4155 PDF预览

LTC4155

更新时间： 2024-01-02 14:09:47
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
52页 391K
描述
Dual-Input Power Manager

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中文翻译

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LTC4155 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, LCC28,.16X.2,20
针数：28Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：8.44可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PQCC-N28
JESD-609代码：e3长度：5 mm
湿度敏感等级：1信道数量：1
功能数量：1端子数量：28
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC28,.16X.2,20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
电源：3.3,5 V认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Power Management Circuits
最大供电电压 (Vsup)：5.5 V最小供电电压 (Vsup)：4.35 V
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：CMOS温度等级：AUTOMOTIVE
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：4 mm
Base Number Matches：1

LTC4155 数据手册

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LTC4155  
Dual-Input Power Manager/  
3.5A Li-Ion Battery Charger with  
I2C Control and USB OTG  
FEATURES  
DESCRIPTION  
2
The LTC®4155 is a 15 watt I C controlled power manager  
n
High Efficiency Charger Capable of 3.5A  
Charge Current  
with PowerPath™ instant-on operation, high efficiency  
switching battery charging and USB compatibility. The  
LTC4155 seamlessly manages power distribution from  
two 5V sources, such as a USB port and a wall adapter,  
to a single-cell rechargeable Lithium-Ion/Polymer battery  
and a system load.  
n
Monolithic Switching Regulator Makes Optimal  
Use of Limited Power and Thermal Budget  
n
Dual-Input Overvoltage Protection Controller  
n
Priority Multiplexing for Multiple Inputs  
2
n
I C/SMBus Control and Status Feedback  
n
NTC Thermistor ADC for Temperature Dependent  
The LTC4155’s switching battery charger automatically  
limits its input current for USB compatibility, or may  
draw up to 3A from a high power wall adapter. The high  
efficiency step-down switching charger is designed to  
provide maximum power to the application and reduced  
heat in high power density applications.  
Charge Algorithms (JEITA)  
n
Instant-On Operation with Low Battery  
n
Battery Ideal Diode Controller for Power  
Management  
n
USB On-The-Go Power Delivery to the USB Port  
n
Full Featured Li-Ion/Polymer Battery Charger with  
2
I C adjustability of input current, charge current, battery  
Four Float Voltage Settings  
28-Lead 4mm × 5mm QFN Package  
n
float voltage, charge termination, and many other param-  
2
eters allows maximum flexibility. I C status reporting of  
APPLICATIONS  
key system and charge parameters facilitates intelligent  
control decisions. USB On-The-Go support provides 5V  
power back to the USB port without any additional com-  
ponents. A dual-input, priority multiplexing, overvoltage  
protection circuit guards the LTC4155 from high voltage  
n
Tablet PCs  
n
Ultra Mobile PCs  
n
Video Media Players  
n
Digital Cameras, GPS, PDAs  
damage on the V  
pin.  
n
BUS  
Smart Phones  
n
Portable Medical Devices  
The LTC4155 is available in the low profile (0.75mm)  
28-lead 4mm × 5mm QFN surface mount package.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
PowerPath and Bat-Track are trademarks of Linear Technology Corporation. All other trademarks  
are the property of their respective owners.  
TYPICAL APPLICATION  
Switching Regulator Efficiency  
I2C Controlled High Power Battery Charger/USB Power Manager  
100  
90  
1μH  
TO  
WALLSNS  
WALLGT  
SW  
OUT  
SYSTEM  
LOAD  
80  
70  
60  
50  
40  
30  
20  
10  
0
V
CHGSNS  
BATGATE  
BATSNS  
V
V
BUS  
IN  
10μF  
22μF  
LTC4155  
USBGT  
100k  
3.6k  
NTCBIAS  
NTC  
USBSNS  
ID  
3
2
CLPROG2 CLPROG1 PROG  
V
OVGCAP  
I C IRQ GND  
C
V
= 3.9V  
BAT  
499Ω  
1.21k  
47nF  
0
1.0 1.5 2.0  
2.5 3.0 3.5  
0.5  
4155 TA01b  
LOAD CURRENT (A)  
4155 TA01a  
4155fc  
1
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中文翻译

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