LTC2941 Linear Technology, LTC2941 Datasheet - Page 16

• Manufacturer Part Number: LTC2941
• Description: Battery Gas Gauge
• Manufacturer: Linear Technology

LTC2941
TYPICAL APPLICATION
RELATED PARTS
PART NUMBER
Battery Gas Gauges
LTC2941-1
LTC2942
LTC2942-1
LTC4150
Battery Chargers
LTC1734
LTC4002
LTC4052
LTC4053
LTC4057
LTC4058
LTC4059
LTC4061
LTC4063
LTC4080
LTC4088
ThinSOT and Bat-Track are trademarks of Linear Technology Corporation.
16
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
Single Cell Lithium-Ion Coulomb Counter with Battery Charger for Charge and Discharge Currents of up to 500mA
DESCRIPTION
Battery Gas Gauge with I
50mΩ Sense Resistor
Battery Gas Gauge with I
Temperature Measurement
Battery Gas Gauge with I
Temperature ADC; Integrated Sense Resistor
Coulomb Counter/Battery Gas Gauge
Lithium-Ion Battery Charger in ThinSOT™
Switch Mode Lithium-Ion Battery Charger
Monolithic Lithium-Ion Battery Pulse Charger
USB Compatible Monolithic Li-Ion Battery Charger
Lithium-Ion Linear Battery Charger
Standalone 950mA Lithium-Ion Charger in DFN
900mA Linear Lithium-Ion Battery Charger
Standalone Linear Li-Ion Battery Charger with
Thermistor Input
Li-Ion Charger with Linear Regulator
500mA Standalone Li-Ion Charger with Integrated
300mA Synchronous Buck
High Effi ciency Battery Charger/USB Power Manager
V
●
5V
IN
FAX: [phone]
1μF
2k
4
5
2
2
2
V
PROG
C Interface and integrated
C Interface, Voltage and
C Interface and Voltage and
LTC4057-4.2
(CHARGER)
CC
GND
●
SHDN
2
www.linear.com
BAT
3
1
V
μP
DD
3.3V
2k
500mA
COMMENTS
Pin Compatible with LTC2942-1
14-Bit ∑Δ-ADC, Pin Compatible with LTC2941
14-Bit ∑Δ-ADC, Pin Compatible with LTC2941-1
2.7V to 8.5V Operation, 10-Pin MSOP Package
Simple ThinSOT Charger, No Blocking Diode, No Sense Resistor Needed
Standalone, 4.7V ≤ V
No Blocking Diode or External Power FET Required, ≤1.5A Charge Current
Standalone Charger with Programmable Timer, Up to 1.25A Charge Current
Up to 800mA Charge Current, Thermal Regulation, ThinSOT Package
C/10 Charge Termination, Battery Kelvin Sensing, ±7% Charge Accuracy
2mm × 2mm DFN Package, Thermal Regulation, Charge Current Monitor
Output
4.2V, ±0.35% Float Voltage, Up to 1A Charge Current, 3mm × 3mm DFN
Package
Up to 1A Charge Current, 100mA, 125mV LDO, 3mm × 3mm DFN Package
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
2k
2k
5
4
3
AL/CC
SDA
SCL
LTC2941
GND
SENSE
SENSE
2
2941 TA02
IN
≤ 24V, 500kHz Frequency
+
–
1
6
+
R
100mΩ
1-CELL
Li-Ion
SENSE
© LINEAR TECHNOLOGY CORPORATION 2010
0.1μF
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LT 0210 • PRINTED IN USA
2941f