Datasheet > LTC1389

LTC1389

更新时间： 2024-11-25 11:46:03

品牌	Logo	应用领域
Linear Systems		转换器
页数	文件大小	规格书
24页	235K
描述
Auto-Polarity, Ultralow Voltage Step-Up Converter and Power Manager

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中文翻译

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LTC1389 数据手册

LTC3109

Auto-Polarity, Ultralow

Voltage Step-Up Converter

and Power Manager

DESCRIPTION

TheLTC^®3109isahighlyintegratedDC/DCconverterideal

for harvesting surplus energy from extremely low input

voltage sources such as TEGs (thermoelectric genera-

tors) and thermopiles. Its unique, proprietary autopolarity

topology* allows it to operate from input voltages as low

as 30mV, regardless of polarity.

FEATURES

Operates from Inputs as Low as ±±3mV

Less Than ±ꢀ1C ꢁeeꢂeꢂ ꢃAross TEG to ꢄarvest

Energy

Proprietary ꢃuto-Polarity ꢃrAhiteAture

Complete Energy ꢄarvesting Power Management

System

– SeleAtable V

of 2.±5V, ±.±V, 4.ꢀV or 5V

OUT

Using two compact step-up transformers and external

energy storage elements, the LTC3109 provides a com-

plete power management solution for wireless sensing

and data acquisition. The 2.2V LDO can power an external

microprocessor,whilethemainoutputcanbeprogrammed

to one of four ﬁxed voltages. The power good indicator

signals that the main output is within regulation. A second

output can be enabled by the host. A storage capacitor (or

battery) can also be charged to provide power when the

input voltage source is unavailable. Extremely low quies-

cent current and high efﬁciency maximizes the harvested

energy available for the application.

– 2.2V, 5mꢃ LDO

– LogiA-Controlleꢂ Output

– Energy Storage Capability for Operation During

Power Interruption

Power Gooꢂ InꢂiAator

Uses Compact Step-up Transformers

Small, 20-lead (4mm × 4mm) QFN Package or

20-Lead SSOP

APPLICATIONS

Remote Sensor and Radio Power

The LTC3109 is available in a small, thermally enhanced

20-lead (4mm × 4mm) QFN package and a 20-lead SSOP

package.

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.

*Patent pending.

HVAC Systems

Automatic Metering

Building Automation

Predictive Maintenance

Industrial Wireless Sensing

TYPICAL APPLICATION

TEG

(THERMOELECTRIC GENERATOR)

1nF

V_OUTCurrent vs TEG Voltage

30mV TO 500mV

1:100

C1A

OPTIONAL SWITCHED OUTPUT FOR SENSORS

OUT2

•

900

800

700

600

500

400

300

200

100

1:100 TRANSFORMERS

C1A = C1B = 1nF

470pF

3.3V

2.2V

C2A

47μF

OUT

= 3.3V

470μF

SWA

VLDO

2.2μF

LOW POWER

RADIO

INA

1nF

LTC3109

1:100

C1B

•

SENSOR(S)

μP

470pF

C2B

PG00D

SWB

OUT2_EN

INB

5.25V

VS1

VS2

VAUX

VSTORE

VAUX

–300 –200 –100

300

100

200

1μF

STORE

GND

(mV)

TEG

3109 TA01a

3109 TA01b

3109fa

12 3 4 5 6 7...24

中文翻译

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与LTC1389相关器件

型号	品牌	获取价格	描述	数据表
LTC1389CSW	Linear	获取价格	IC LINE TRANSCEIVER, PDSO24, 0.300 INCH, PLASTIC, SO-24, Line Driver or Receiver
LTC1390	Linear	获取价格	8-Channel Analog Multiplexer with Serial Interface
LTC1390	ADI	获取价格	具串行接口的 8 通道模拟多路复用器
LTC1390CN	Linear	获取价格	8-Channel Analog Multiplexer with Serial Interface
LTC1390CN#PBF	Linear	获取价格	LTC1390 - 8-Channel Analog Multiplexer with Serial Interface; Package: PDIP; Pins: 16; Tem
LTC1390CS	Linear	获取价格	8-Channel Analog Multiplexer with Serial Interface
LTC1390CS#PBF	Linear	获取价格	LTC1390 - 8-Channel Analog Multiplexer with Serial Interface; Package: SO; Pins: 16; Tempe
LTC1390CS#TR	Linear	获取价格	暂无描述
LTC1391	Linear	获取价格	8-Channel Analog Multiplexer with Cascadable Serial Interface
LTC1391	ADI	获取价格	具可级联串行接口的 8 通道模拟多路复用器

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