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LTC3577EUFFTRPBF PDF预览

LTC3577EUFFTRPBF

更新时间： 2024-02-25 18:29:36
品牌 Logo 应用领域
凌特 - Linear 集成电源管理电路便携式
页数 文件大小 规格书
52页 623K
描述
Highly Integrated 6-Channel Portable PMIC

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中文翻译

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LTC3577EUFFTRPBF 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, LCC44,.16X.28,16
针数：44Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PQCC-N44
JESD-609代码：e3长度：7 mm
湿度敏感等级：1信道数量：6
功能数量：1端子数量：44
最高工作温度：85 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC44,.16X.28,16封装形状：RECTANGULAR
封装形式：CHIP CARRIER峰值回流温度（摄氏度）：260
电源：5 V认证状态：Not Qualified
座面最大高度：0.8 mm子类别：Power Management Circuits
最大供电电流 (Isup)：1000 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：1.6 V标称供电电压 (Vsup)：3.3 V
表面贴装：YES技术：CMOS
温度等级：OTHER端子面层：Matte Tin (Sn)
端子形式：NO LEAD端子节距：0.4 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 mmBase Number Matches：1

LTC3577EUFFTRPBF 数据手册

 浏览型号LTC3577EUFFTRPBF的Datasheet PDF文件第2页浏览型号LTC3577EUFFTRPBF的Datasheet PDF文件第3页浏览型号LTC3577EUFFTRPBF的Datasheet PDF文件第4页浏览型号LTC3577EUFFTRPBF的Datasheet PDF文件第5页浏览型号LTC3577EUFFTRPBF的Datasheet PDF文件第6页浏览型号LTC3577EUFFTRPBF的Datasheet PDF文件第7页 
LTC3577/LTC3577-1  
Highly Integrated  
6-Channel Portable PMIC  
DESCRIPTION  
FEATURES  
n
Full Featured Li-Ion/Polymer Charger/PowerPath™  
The LTC®3577 is a highly integrated power management  
IC for single cell Li-Ion/Polymer battery applications. It  
includesaPowerPathmanagerwithautomaticloadpriori-  
tization,abatterycharger,anidealdiode,inputovervoltage  
protectionandnumerousotherinternalprotectionfeatures.  
TheLTC3577isdesignedtoaccuratelychargefromcurrent  
limited supplies such as USB by automatically reducing  
charge current such that the sum of the load current and  
thechargecurrentdoesnotexceedtheprogrammedinput  
current limit (100mA or 500mA modes). The LTC3577  
reduces the battery voltage at elevated temperatures to  
improve safety and reliability. Efficient high current charg-  
ing from supplies up to 38V is available using the on-chip  
Bat-Track controller. The LTC3577 also includes a push-  
button input to control the three synchronous step-down  
switching regulators and system reset. The onboard LED  
backlight boost circuitry can drive up to 10 series LEDs  
Control with Instant-On Operation  
Triple Adjustable High Efficiency Step-Down  
n
Switching Regulators (800mA, 500mA, 500mA I  
6μA Battery Drain Current in Hard Reset  
)
OUT  
n
n
n
n
Bat-Track™ Control for External HV Buck DC/DCs  
2
I C Adjustable SW Slew Rates for EMI Reduction  
High Temperature Battery Voltage Reduction  
Improves Safety and Reliability  
n
n
Overvoltage Protection for USB (V )/Wall Inputs  
BUS  
Provides Protection to 30V  
Integrated 40V Series LED Backlight Driver with 60dB  
2
Brightness Control and Gradation via I C  
n
n
1.5A Maximum Charge Current with Thermal Limiting  
Battery Float Voltage:4.2V (LTC3577)  
4.1V (LTC3577-1)  
n
n
n
Pushbutton On/Off Control with System Reset  
Dual 150mA Current Limited LDOs  
Small 4mm × 7mm 44-Pin QFN Package  
2
and includes versatile digital dimming via I C input. The  
2
I C input also controls two 150mA LDOs as well as other  
operating modes and status read back. The LTC3577 is  
available in a low profile 4mm × 7mm × 0.75mm 44-pin  
QFN package.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. PowerPath and Bat-Track are trademarks of Linear Technology  
Corporation. All other trademarks are the property of their respective owners. Protected by U.S.  
Patents including 6522118, 6700364, 7511390, 5481178, 6580258. Other Patents Pending.  
APPLICATIONS  
n
PNDs, DMB/DVB-H; Digital/Satellite Radio;  
Media Players  
n
Portable Industrial/Medical Products  
n
Universal Remotes, Photo Viewers  
Other USB-Based Handheld Products  
n
TYPICAL APPLICATION  
HV SUPPLY  
LED Driver Efficiency 10 LEDs  
HIGH VOLTAGE  
BUCK DC/DC  
8V TO 38V  
(TRANSIENTS TO 60V)  
90  
80  
70  
60  
OPTIONAL  
100mA/500mA  
1000mA  
USB  
V
OUT  
MAX PWM  
CONSTANT  
CURRENT  
0V  
OVERVOLTAGE  
PROTECTION  
50  
40  
30  
20  
10  
0
CC/CV  
CHARGER  
+
SINGLE CELL  
Li-Ion  
NTC  
LTC3577/LTC3577-1  
CHARGE  
2
0.8V to 3.6V/150mA  
0.8V to 3.6V/150mA  
DUAL LDO  
REGULATORS  
2
I C PORT  
LED BACKLIGHT WITH DIGITALLY  
CONTROLLED DIMMING  
UP TO 10 LED  
BOOST  
1.E-06 1.E-05 1.E-04 1.E-03 1.E-02 1.E-01  
TRIPLE HIGH EFFICIENCY  
STEP-DOWN SWITCHING  
REGULATORS WITH  
0.8V to 3.6V/800mA  
0.8V to 3.6V/500mA  
0.8V to 3.6V/500mA  
LED CURRENT (A)  
PB  
3577 TA01b  
PUSHBUTTON CONTROL  
3577 TA01a  
3577f  
1
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中文翻译

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