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LTC4054ES5-4.2#TRM PDF预览

LTC4054ES5-4.2#TRM

更新时间： 2024-11-21 19:45:39
品牌 Logo 应用领域
凌特 - Linear 电池光电二极管
页数 文件大小 规格书
16页 184K
描述
LTC4054-4.2 - Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT; Package: SOT; Pins: 5; Temperature Range: -40°C to 85°C

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LTC4054ES5-4.2#TRM 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SOT包装说明：VSSOP, TSOP5/6,.11,37
针数：5Reach Compliance Code：not_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 SUPPORT CIRCUITJESD-30 代码：R-PDSO-G5
JESD-609代码：e0长度：2.9 mm
湿度敏感等级：1信道数量：2
功能数量：1端子数量：5
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：VSSOP
封装等效代码：TSOP5/6,.11,37封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：235
电源：5 V认证状态：Not Qualified
座面最大高度：1 mm子类别：Power Management Circuits
最大供电电流 (Isup)：2 mA最大供电电压 (Vsup)：6.5 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：COMMERCIAL端子面层：Tin/Lead (Sn/Pb)
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL处于峰值回流温度下的最长时间：20
宽度：1.625 mmBase Number Matches：1

LTC4054ES5-4.2#TRM 数据手册

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LTC4054-4.2/LTC4054X-4.2  
Standalone Linear  
Li-Ion Battery Charger with  
Thermal Regulation in ThinSOT  
U
FEATURES  
DESCRIPTIO  
■
Programmable Charge Current Up to 800mA  
The LTC®4054 is a complete constant-current/constant-  
voltage linear charger for single cell lithium-ion batteries.  
Its ThinSOT package and low external component count  
make the LTC4054 ideally suited for portable applications.  
Furthermore, theLTC4054isspecificallydesignedtowork  
within USB power specifications.  
■
No MOSFET, Sense Resistor or Blocking  
Diode Required  
Complete Linear Charger in ThinSOTTM Package for  
Single Cell Lithium-Ion Batteries  
Constant-Current/Constant-Voltage Operation with  
Thermal Regulation* to Maximize Charge Rate  
Without Risk of Overheating  
Charges Single Cell Li-Ion Batteries Directly  
from USB Port  
■
■
■
No external sense resistor is needed, and no blocking  
diode is required due to the internal MOSFET architecture.  
Thermal feedback regulates the charge current to limit the  
die temperature during high power operation or high  
ambient temperature. The charge voltage is fixed at 4.2V,  
andthechargecurrentcanbeprogrammedexternallywith  
a single resistor. The LTC4054 automatically terminates  
the charge cycle when the charge current drops to 1/10th  
the programmed value after the final float voltage is  
reached.  
■
■
Preset 4.2V Charge Voltage with ±1% Accuracy  
Charge Current Monitor Output for Gas  
Gauging*  
■
■
■
■
■
■
■
■
Automatic Recharge  
Charge Status Output Pin  
C/10 Charge Termination  
25µA Supply Current in Shutdown  
2.9V Trickle Charge Threshold (LTC4054)  
Available Without Trickle Charge (LTC4054X)  
Soft-Start Limits Inrush Current  
Available in 5-Lead SOT-23 Package  
U
When the input supply (wall adapter or USB supply) is  
removed, the LTC4054 automatically enters a low current  
state, dropping the battery drain current to less than 2µA.  
The LTC4054 can be put into shutdown mode, reducing  
the supply current to 25µA.  
Otherfeaturesincludechargecurrentmonitor,undervoltage  
lockout, automatic recharge and a status pin to indicate  
charge termination and the presence of an input voltage.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
*U.S.Patent No. 6,522,118  
APPLICATIO S  
■
Cellular Telephones, PDAs, MP3 Players  
Charging Docks and Cradles  
■
■
Bluetooth Applications  
U
Complete Charge Cycle (750mAh Battery)  
TYPICAL APPLICATIO  
700  
600  
500  
400  
300  
200  
100  
0
4.75  
4.50  
4.25  
4.00  
3.75  
3.50  
3.25  
3.00  
CONSTANT  
CURRENT  
600mA Single Cell Li-Ion Charger  
CONSTANT  
POWER  
CONSTANT  
VOLTAGE  
V
IN  
4.5V TO 6.5V  
1µF  
4
V
3
5
CC  
BAT  
600mA  
LTC4054-4.2  
V
= 5V  
CC  
JA  
4.2V  
Li-Ion  
BATTERY  
PROG  
θ
= 130°C/W  
CHARGE  
TERMINATED  
GND  
2
R
= 1.65k  
PROG  
= 25°C  
1.65k  
T
A
0
0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0  
TIME (HOURS)  
405442 TA01a  
405442 TAO1b  
405442xf  
1
1234567...16

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