LTC3109

19

3109fa

TYPICAL APPLICATIONS

Energy Harvester Operates from Small Temperature Differentials of Either Polarity

GND

1μF

5.25V

2.2V

LTC3109

3.3V

3109 TA02

C1A

1nF

2.2μF

470pF

1nF

470pF

T1

1:100

TEG

(THERMOELECTRIC GENERATOR)

±30mV TO ±500mV

••

T2

1:100

••

C2A

C1B

C2B

SWB

VS1

VS2

T1, T2: COILCRAFT LPR6235-752SML

SWA

VLDO

PG00D

VSTORE

VAUX

+

470μF

OPTIONAL SWITCHED OUTPUT FOR SENSORS

+

μP

LOW POWER

RADIO

SENSOR(S)

Li-Ion Battery Charger and LDO Operates from a Low Level AC Input

GND

1μF

2.2V

LTC3109

3109 TA03

C1A

1nF

Li-Ion

BATTERY

*THE LTC4070 IS A PRECISION BATTERY

CHARGER OFFERING UNDERVOLTAGE

PROTECTION, WITH A TYPICAL SUPPLY

CURRENT OF ONLY 0.45μA

FAIRCHILD

FDG328P

470pF

60Hz

1nF

470pF

T1

1:100

50mV TO

300mV RMS

T2

1:100

••

••

C2A

C1B

C2B

SWB

T1, T2: COILCRAFT

LPR6235-752SML

VS1

VS2

SWA

VLDO

VLDO

TO LOAD

4.1V

NC

2.2μF

PG00D

VSTORE

VAUX

+

AC

LBO

NTC

ADJ

NC

NC

NC

HBO

DRV

NTCBIAS

LTC4070*

GND