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Linear Technology LTC2942 Battery Gas Gauge w/ I²C (requires DC590B) DC1496B-B DC1496B-B Data Sheet

Product codes
DC1496B-B
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Page of 18
LTC2942
18
2942fa
Linear Technology  Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417  
(408) 432-1900 
●
 FAX: (408) 434-0507 
 ● 
 www.linear.com
 
LINEAR TECHNOLOGY CORPORATION 2010
LT 0810 REV A • PRINTED IN USA
relaTeD parTs
Typical applicaTion
Single-Cell Lithium-Ion Coulomb Counter with Battery Charger for Charge and Discharge Currents of Up to 500mA
+
SENSE
+
SENSE
–
LTC2942
AL/CC
SDA
R
SENSE
100mΩ
1-CELL
Li-Ion
0.1µF
LOAD
SCL
2
2942 TA02
6
5
2k
2k
2k
2k
4
3
1
GND
µP
3.3V
500mA
3
V
DD
BAT
1
2
4
V
IN
5V
5
SHDN
V
CC
PROG
LTC4057-4.2
(CHARGER)
1µF
GND
PART NUMBER
DESCRIPTION
COMMENTS
Battery Gas Gauges
LTC2942-1
Battery Gas Gauge with I
2
C Interface and Voltage and 
Temperature ADC; Integrated Sense Resistor
2.7V to 5.5V Operation, 14-Bit ∆∑-ADC, Pin Compatible with LTC2941-1
LTC2941 
Battery Gas Gauge with I
2
C Interface
2.7V to 5.5V Operation, Pin Compatible with LTC2942
LTC2941-1
Battery Gas Gauge with I
2
C Interface and Integrated 
50mΩ Sense Resistor
2.7V to 5.5V Operation, Pin Compatible with LTC2942-1
LTC4150
Coulomb Counter/Battery Gas Gauge
2.7V to 8.5V Operation, 10-Pin MSOP Package
Battery Chargers
LTC1734
Lithium-Ion Battery Charger in ThinSOT™
Simple ThinSOT Charger, No Blocking Diode, No Sense Resistor Needed
LTC4002
Switch Mode Lithium-Ion Battery Charger
Standalone, 4.7V ≤ V
IN
 ≤ 24V, 500kHz Frequency
LTC4052
Monolithic Lithium-Ion Battery Pulse Charger
No Blocking Diode or External Power FET Required, ≤1.5A Charge Current
LTC4053
USB Compatible Monolithic Li-Ion Battery Charger
Standalone Charger with Programmable Timer, Up to 1.25A Charge Current
LTC4057
Lithium-Ion Linear Battery Charger
Up to 800mA Charge Current, Thermal Regulation, ThinSOT Package
LTC4058
Standalone 950mA Lithium-Ion Charger in DFN
C/10 Charge Termination, Battery Kelvin Sensing, ±7% Charge Accuracy
LTC4059
900mA Linear Lithium-Ion Battery Charger
2mm × 2mm DFN Package, Thermal Regulation, Charge Current Monitor 
Output
LTC4061
Standalone Linear Li-Ion Battery Charger with 
Thermistor Input
4.2V, ±0.35% Float Voltage, Up to 1A Charge Current, 3mm × 3mm DFN 
Package
LTC4063
Li-Ion Charger with Linear Regulator
Up to 1A Charge Current, 100mA, 125mV LDO, 3mm × 3mm DFN Package
LTC4088
High Efficiency Battery Charger/USB Power Manager
Maximizes Available Power from USB Port, Bat-Track™, Instant-On Operation, 
1.5A Max Charge Current, 180mΩ Ideal Diode with <50mΩ Option, 
3.3V/25mA Always-On LDO, 4mm × 3mm DFN-14 Package