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LTC3108IDETRPBF PDF预览

LTC3108IDETRPBF

更新时间： 2024-09-25 05:43:51
品牌 Logo 应用领域
凌特 - Linear 转换器
页数 文件大小 规格书
20页 252K
描述
Ultralow Voltage Step-Up Converter and Power Manager

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中文翻译

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LTC3108IDETRPBF 数据手册

 浏览型号LTC3108IDETRPBF的Datasheet PDF文件第2页浏览型号LTC3108IDETRPBF的Datasheet PDF文件第3页浏览型号LTC3108IDETRPBF的Datasheet PDF文件第4页浏览型号LTC3108IDETRPBF的Datasheet PDF文件第5页浏览型号LTC3108IDETRPBF的Datasheet PDF文件第6页浏览型号LTC3108IDETRPBF的Datasheet PDF文件第7页 
Electrical Specifications Subject to Change  
LTC3108  
Ultralow Voltage Step-Up  
Converter and Power Manager  
FEATURES  
DESCRIPTION  
TheLTC®3108isahighlyintegratedDC/DCconverterideal  
forharvestingandmanagingsurplusenergyfromextremely  
low input voltage sources such as TEG (thermoelectric  
generators),thermopilesandsmallsolarcells.Thestep-up  
topology operates from input voltages as low as 20mV.  
n
Operates from Inputs of 20mV  
n
Complete Energy Harvesting Power  
Management System  
- Selectable V  
of 2.35V, 3.3V, 4.1V or 5V  
OUT  
- LDO: 2.2V at 3mA  
- Logic Controlled Output  
- Reserve Energy Output  
Power Good Indicator  
Usingasmallstep-uptransformer,theLTC3108providesa  
completepowermanagementsolutionforwirelesssensing  
and data acquisition. The 2.2V LDO powers an external  
microprocessor, while the main output is programmed to  
one of four fixed voltages to power a wireless transmitter  
orsensors.Thepowergoodindicatorsignalsthatthemain  
outputvoltageiswithinregulation.Asecondoutputcanbe  
enabled by the host. A storage capacitor provides power  
when the input voltage source is unavailable. Extremely  
low quiescent current and high efficiency design ensure  
the fastest possible charge times of the output reservoir  
capacitor.  
n
n
n
n
Ultralow I : 6μA  
Q
Uses Compact Step-Up Transformers  
Small 12-Lead (4mm × 3mm) DFN or 16-Lead  
SSOP Packages  
APPLICATIONS  
n
Remote Sensors and Radio Power  
n
Surplus Heat Energy Harvesting  
n
HVAC  
The LTC3108 is available in a small, thermally enhanced  
12-lead (4mm × 3mm) DFN package and a 16-lead SSOP  
package.  
n
Industrial Wireless Sensing  
n
Automatic Metering  
Building Automation  
n
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
n
Indoor Light Energy Harvesting  
TYPICAL APPLICATION  
Wireless Remote Sensor Application  
Powered From a Peltier Cell  
VOUT Charge Time  
1nF  
1:100  
1000  
100  
10  
1
5V  
C1  
VSTORE  
LTC3108  
V
C
= 3.3V  
= 470μF  
OUT  
OUT  
+
+
+
0.1F  
6.3V  
TEG  
220μF  
330pF  
V
OUT2  
PGD  
C2  
PGOOD  
2.2V  
μP  
20mV TO 500mV  
VLDO  
SW  
2.2μF  
SENSORS  
RF LINK  
3.3V  
VS2  
VS1  
V
OUT  
+
470μF  
1:100 Ratio  
1:50 Ratio  
1:20 Ratio  
V
OUT2_EN  
GND  
3108 TA01a  
VAUX  
0
100 150 200 250 300 350 400  
(mV)  
0
50  
V
1μF  
IN  
3108 TA01b  
3108p  
1
1234567...20

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