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LTC4097EDDB#PBF

更新时间： 2024-02-07 04:45:32
品牌 Logo 应用领域
凌特 - Linear 电池
页数 文件大小 规格书
20页 216K
描述
LTC4097 - USB/Wall Adapter Standalone Li-Ion/Polymer Battery Charger; Package: DFN; Pins: 12; Temperature Range: -40°C to 85°C

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中文翻译

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LTC4097EDDB#PBF 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：DFN包装说明：HVSON, SOLCC12,.08,20
针数：12Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.33可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-N12
JESD-609代码：e3长度：3 mm
湿度敏感等级：1信道数量：2
功能数量：1端子数量：12
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：HVSON
封装等效代码：SOLCC12,.08,20封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE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)：0.8 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：4.25 V标称供电电压 (Vsup)：5 V
表面贴装：YES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：0.45 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
宽度：2 mm

LTC4097EDDB#PBF 数据手册

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LTC4097  
USB/Wall Adapter  
Standalone Li-Ion/Polymer  
Battery Charger  
FEATURES  
DESCRIPTION  
The LTC®4097 is a standalone linear battery charger that  
is capable of charging a single-cell Li-Ion or Li-Polymer  
batteryfrombothwalladapterandUSBinputs.Thecharger  
can detect power at the inputs and automatically select  
the appropriate power source for charging.  
■
Charges Single-Cell Li-Ion/Polymer Battery from  
Wall Adapter and USB Inputs  
■
Automatic Input Detection (Wall Adapter Input has  
Charging Priority)  
Charge Current Programmable up to 1.2A from  
Wall Adapter Input  
Programmable Charge Current Termination  
NTC Thermistor Input for Temperature Qualified  
Charging  
Independent DC, USB Charge Current Programming  
Preset Float Voltage with 0.ꢀ6 Accuracy  
Thermal Regulation Maximizes Charge Rate Without  
Risk of Overheating*  
Charge Status Output  
Automatic Recharge  
■
No external sense resistor or blocking diode is required  
for charging due to the internal MOSFET architecture.  
Internal thermal feedback regulates the battery charge  
currenttomaintainaconstantdietemperatureduringhigh  
power operation or high ambient temperature conditions.  
The float voltage is fixed at 4.2V and the charge current  
is programmed with an external resistor. The LTC4097  
terminatesthechargecyclewhenthechargecurrentdrops  
below the user programmed termination threshold after  
the final float voltage is reached. The LTC4097 can be put  
into shutdown mode reducing the DCIN supply current to  
20µA, the USBIN supply current to 10µA, and the battery  
drain current to less than 2µA even with power applied  
to both inputs.  
■
■
■
■
■
■
■
■
■
20µA Charger Quiescent Current in Shutdown  
Available in a Thermally Enhanced, Low Profile  
(0.75mm) 12-Lead (3mm × 2mm) DFN Package  
Other features include trickle charge, automatic recharge,  
undervoltagelockout,chargestatusoutput,anNTCtherm-  
istor input used to monitor battery temperature and VNTC  
power present output with 120mA drive capability.  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
*Protected by U.S. Patents including 6522118.  
APPLICATIONS  
■
Cellular Telephones  
MP3 Players  
■
■
Portable Handheld Devices  
TYPICAL APPLICATION  
Complete Charge Cycle (1100mAh Battery)  
Dual Input Battery Charger for Single-Cell Li-Ion Battery  
1000  
800  
600  
400  
200  
800mA (WALL)  
100mA/500mA (USB)  
LTC4097  
BAT  
WALL  
0
4.2  
ADAPTER  
DCIN  
USBIN  
IUSB  
IDC  
VNTC  
HPWR  
NTC  
4.2V  
CONSTANT VOLTAGE  
+
SINGLE CELL  
USB  
PORT  
USBIN = 5V  
Li-Ion BATTERY  
4.0  
3.8  
3.6  
3.4  
1µF  
T
= 25°C  
A
IDC  
R
R
= 1.24k  
= 2k  
2k  
1%  
ITERM  
GND  
1µF  
IUSB  
T
HPWR = 5V  
1.24k  
1%  
2k  
1%  
5.0  
2.5  
0
4097 TA01  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
TIME (HR)  
4097 TA01b  
4097f  
1
1234567...20

中文翻译

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