Datasheet

LTC3109
19
3109fb
For more information www.linear.com/LTC3109
Typical applicaTions
Energy Harvester Operates from Small Temperature Differentials of Either Polarity
GND
1µF
5.25V
2.2V
LTC3109
3.3V
C
STORE
3109 TA02
C1A
1nF
2.2µF
470pF
1nF
470pF
T1
1:100
TEG
(THERMOELECTRIC GENERATOR)
±30mV TO ±500mV
• •
T2
1:100
• •
V
OUT2
C2A
C1B
C2B
SWB
V
INB
VS1
VS2
T1, T2: COILCRAFT LPR6235-752SML
SWA
V
INA
V
OUT
VLDO
PG00D
V
OUT2_EN
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
• •
• •
V
OUT2
C2A
C1B
C2B
SWB
V
INB
T1, T2: COILCRAFT
LPR6235-752SML
VS1
VS2
SWA
V
INA
V
OUT
VLDO VLDO
TO LOAD
4.1V
NC
2.2µF
PG00D
V
OUT2_EN
VSTORE
VAUX
+
AC
LBO
NTC
V
CC
ADJ
NC
NC
NC
HBO
DRV
NTCBIAS
LTC4070*
GND