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LTC3558EUD-TRPBF PDF预览

LTC3558EUD-TRPBF

更新时间： 2024-01-04 22:57:57
品牌 Logo 应用领域
凌特 - Linear 稳压器电池
页数 文件大小 规格书
32页 398K
描述
Linear USB Battery Charger with Buck and Buck-Boost Regulators

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中文翻译

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LTC3558EUD-TRPBF 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：HVQCCN,
针数：20Reach Compliance Code：compliant
风险等级：5.18可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：S-PQCC-N20
JESD-609代码：e3长度：3 mm
湿度敏感等级：1信道数量：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：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：0.8 mm最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.3 V标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：INDUSTRIAL
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：30宽度：3 mm
Base Number Matches：1

LTC3558EUD-TRPBF 数据手册

 浏览型号LTC3558EUD-TRPBF的Datasheet PDF文件第2页浏览型号LTC3558EUD-TRPBF的Datasheet PDF文件第3页浏览型号LTC3558EUD-TRPBF的Datasheet PDF文件第4页浏览型号LTC3558EUD-TRPBF的Datasheet PDF文件第5页浏览型号LTC3558EUD-TRPBF的Datasheet PDF文件第6页浏览型号LTC3558EUD-TRPBF的Datasheet PDF文件第7页 
LTC3558  
Linear USB Battery Charger  
with Buck and  
Buck-Boost Regulators  
FEATURES  
DESCRIPTION  
The LTC®3558 is a USB battery charger with dual high ef-  
ficiency switching regulators. The device is ideally suited  
to power single-cell Li-Ion/Polymer based handheld ap-  
plications needing multiple supply rails.  
Battery Charger  
n
Standalone USB Charger  
n
Up to 950mA Charge Current Programmable via  
Single Resistor  
n
HPWR Input Selects 20% or 100% of Programmed  
Battery charge current is programmed via the PROG pin  
and the HPWR pin with capability up to 950mA of current  
at the BAT pin. The CHRG pin allows battery status to be  
monitored continuously during the charging process. An  
internal timer controls charger termination.  
Charge Current  
n
NTC Input for Temperature Qualified Charging  
n
Internal Timer Termination  
Bad Battery Detection  
n
Switching Regulators (Buck and Buck-Boost)  
Thepartincludesmonolithicsynchronousbuckandbuck-  
boost regulators that can provide up to 400mA of output  
current each and operate at efficiencies greater than 90%  
over the entire Li-Ion/Polymer battery range. The buck-  
boostregulatorcanregulateitsprogrammedoutputvoltage  
at its rated deliverable current over the entire Li-Ion range  
without drop out, increasing battery runtime.  
n
Up to 400mA Output Current per Regulator  
n
2.25MHz Constant-Frequency Operation  
Power Saving Burst Mode® Operation  
n
n
Low Profile, 20-Lead, 3mm × 3mm QFN Package  
APPLICATIONS  
TheLTC3558isofferedinalowprofile(0.75mm),thermally  
enhanced, 20-lead (3mm × 3mm) QFN package.  
, LT, LTC, LTM and Burst Mode are registered trademarks of Linear Technology  
Corporation. All other trademarks are the property of their respective owners.  
n
SD/Flash-Based MP3 Players  
Low Power Handheld Applications  
n
TYPICAL APPLICATION  
USB Charger Plus Buck Regulator and Buck-Boost Regulator  
Demo Board  
USB (4.3V TO 5.5V)  
V
BAT  
CC  
SINGLE  
Li-lon CELL  
(2.7V TO 4.2V)  
+
1μF  
PV  
IN1  
IN2  
PV  
1.74k  
PROG  
NTC  
10μF  
1.2V AT 400mA  
SW1  
4.7μH  
LTC3558  
10pF  
10μF  
324k  
649k  
CHRG  
SUSP  
HPWR  
MODE  
EN1  
FB1  
SWAB2  
2.2μH  
3.3V AT 400mA  
DIGITAL  
CONTROL  
SWCD2  
V
OUT2  
121k  
22μF  
324k  
105k  
33pF  
EN2  
FB2  
15k  
330pF  
10pF  
EXPOSED  
PAD  
GND  
V
C2  
3558 TA01  
3558f  
1
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中文翻译

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