LTC2943
20
2943fa
For more information www.linear.com/LTC2943
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LINEAR TECHNOLOGY CORPORATION 2013
LT 0514 REV A • PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART
NUMBER DESCRIPTION COMMENTS
Battery Gas Gauges
LTC2941 Battery Gas Gauge with I
2
C Interface 2.7V to 5.5V Operation, 6-Lead (2mm × 3mm) DFN Package
LTC2941-1 1A I
2
C Battery Gas Gauge with Internal Sense
Resistor
2.7V to 5.5V Operation, 6-Lead (2mm × 3mm) DFN Package
LTC2942 Battery Gas Gauge with Temperature/Voltage
Measurement
2.7V to 5.5V Operation, 14-Bit Δ∑-ADC, 6-Lead (2mm × 3mm) DFN Package
LTC2942-1 1A Battery Gas Gauge with Internal Sense Resistor
and Temperature/Voltage Measurement
2.7V to 5.5V Operation, 14-Bit Δ∑-ADC, 6-Lead (2mm × 3mm) DFN Package
LTC4150 Coulomb Counter/Battery Gas Gauge 2.7V to 8.5V Operation, 10-Pin MSOP Package
Battery Chargers
LTC4000 High Voltage High Current Controller for Battery
Charging and Power Management
3V to 60V Operation, 28-Lead (4mm × 5mm) QFN or SSOP Packages
LTC4009 High Efficiency, Multi-Chemistry Battery Charger 6V to 28V Operation, 20-Lead (4mm × 4mm) QFN Package
LTC4012 High Efficiency, Multi-Chemistry Battery Charger
with PowerPath™ Control
6V to 28V Operation, 20-Lead (4mm × 4mm) QFN Package
LT3652HV Power Tracking 2A Battery Charger Input Supply Voltage Regulation Loop for Peak Power Tracking, 5V to 34V Operation,
1MHz, 2A Charge Current, 3mm × 3mm DFN-12 and MSOP-12 Packages
LTC1732 Li-Ion Battery Charger 4.5V to 12V Operation, MSOP-10 Package
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com/LTC2943
1
6
7
9
2
3
10
4
8
R
PROG*
19.6k
R
SENSE
0.25Ω
I
BAT
= 500mA
V
IN
= 10V
C
TIMER
0.1µF
MBRM120T3
SENSE
DRV
V
CC
BAT
PROGTIMER
LTC1732-8.4
SEL
R2
1k
R1
1k
CHRG
ACPR
GND
C2
10µF
Q1
Si7135DP
SENSE
+
ALCC
SDA
SCL
LTC2943
R4
2k
R3
2k
R5
2k
0.5A
LOAD
R
SENSE
100mΩ
8.4V
Li-Ion
BATTERY
2943 TA02
SENSE
–
+
GND
C3
1µF
V
DD
3.3V
µP
C1
1µF
2-Cell 8.4V Linear Charger and Battery Gas Gauge
