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LTC4061

更新时间： 2023-12-20 18:44:51
品牌 Logo 应用领域
亚德诺 - ADI 电池电阻器
页数 文件大小 规格书
20页 273K
描述
具有热敏电阻器输入的独立型线性锂离子电池充电器

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中文翻译

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LTC4061 数据手册

 浏览型号LTC4061的Datasheet PDF文件第2页浏览型号LTC4061的Datasheet PDF文件第3页浏览型号LTC4061的Datasheet PDF文件第4页浏览型号LTC4061的Datasheet PDF文件第5页浏览型号LTC4061的Datasheet PDF文件第6页浏览型号LTC4061的Datasheet PDF文件第7页 
LTC4061  
Standalone Linear Li-Ion  
Battery Charger with  
Thermistor Input  
FeaTures  
DescripTion  
The LTC®4061 is a full-featured, flexible, standalone linear  
charger for single-cell Lithium-Ion batteries. It is capable  
of operating within USB power specifications.  
n
ꢀ ChargeꢀCurrentꢀProgrammableꢀUpꢀtoꢀ1A  
n
ꢀ ChargesꢀSingle-CellꢀLi-IonꢀBatteriesꢀDirectlyꢀfromꢀ  
USBꢀPortꢀ  
n
ꢀ PresetꢀChargeꢀVoltageꢀwithꢀ±±0.35ꢀAccuracy  
Both programmable time and programmable current  
based termination schemes are available. Furthermore,  
the CHRG open-drain status pin can be programmed to  
indicate the battery charge state according to the needs  
of the application. Additional safety features designed  
to maximize battery lifetime and reliability include NTC  
battery temperature sensing and the SmartStart charg-  
ing algorithm.  
n
ꢀ ThermistorꢀInputꢀforꢀTemperatureꢀQualifiedꢀ  
Charging  
ꢀ InputꢀSupplyꢀPresentꢀLogicꢀOutput  
n
n
ꢀ ThermalꢀRegulationꢀMaximizesꢀChargeꢀRateꢀ  
WithoutꢀRiskꢀofꢀOverheating  
n
ꢀ ProgrammableꢀChargeꢀCurrentꢀDetection/  
Termination  
n
ProgrammableꢀChargeꢀTerminationꢀTimer  
n
No external sense resistor or external blocking diode is  
required for charging due to the internal MOSFET archi-  
tecture. Internal thermal feedback regulates the charge  
current to maintain a constant die temperature during  
high power operation or high ambient temperature condi-  
tions. The charge current is programmed with an external  
resistor. With power applied, the LTC4061 can be put into  
shutdown mode to reduce the supply current to 20µA and  
the battery drain current to less than 5µA.  
ꢀ Smart Pulsing Error Feature  
SmartStart™ Prolongs Battery Life  
n
n
20µA Charger Quiescent Current in Shutdown  
Available in a Low Profile (0.75mm) 10-Lead  
n
(3mm × 3mm) DFN Package  
applicaTions  
n
Handheld Computers  
n
Portable MP3 Players  
Other features include smart recharge, USB C/5 cur-  
rent programming input, undervoltage lockout and AC  
Present logic output.  
n
Digital Cameras  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
SmartStart, ThinSOT and PowerPath are trademarks of Linear Technology Corporation. All  
other trademarks are the property of their respective owners. Protected by U.S. Patents  
including 6522118.  
Typical applicaTion  
CompleteꢀChargeꢀCycleꢀ(11±±mAhꢀBattery)  
8±±mAꢀSingle-CellꢀLi-IonꢀBatteryꢀChargerꢀ  
(C/1±ꢀTermination)  
900  
800  
700  
600  
500  
400  
300  
200  
100  
0
4.3  
4.2  
4.1  
4.0  
3.9  
3.8  
3.7  
3.6  
3.5  
3.4  
800mA  
V
IN  
V
BAT  
CC  
4.3V TO 8V  
EN  
CHRG  
LTC4061  
1µF  
C/5  
BATTERY  
CURRENT  
BATTERY  
VOLTAGE  
4.2V  
SINGLE-CELL  
Li-Ion BATTERY  
+
TIMER  
PROG  
ACPR  
NTC  
I
DET  
GND  
619Ω  
V
A
= 5V  
CC  
T
= 25°C  
4061 TA01a  
0
0.5  
1.0  
1.5  
2.0  
2.5  
3.0  
TIME (HOURS)  
4061 TA01b  
4061fd  
ꢀ
1234567...20

中文翻译

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