LTC2942I(RevA) Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC2942I Datasheet PDF : 18 Pages
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LTC2942
Typical Application
Single-Cell Lithium-Ion Coulomb Counter with Battery Charger for Charge and Discharge Currents of Up to 500mA
500mA
VIN
5V
4 VCC
BAT 3
3.3V
LOAD
0.1µF
1µF LTC4057-4.2
(CHARGER)
5 PROG SHDN 1
VDD
2k
GND
µP
2
2k 2k 2k
SENSE+ 1
5
4
3
LTC2942
AL/CC
SDA SENSE–
SCL
6
+
RSENSE
100mΩ
1-CELL
GND
Li-Ion
2
2942 TA02
Related Parts
PART NUMBER DESCRIPTION
Battery Gas Gauges
LTC2942-1
Battery Gas Gauge with I2C Interface and Voltage and
Temperature ADC; Integrated Sense Resistor
LTC2941
Battery Gas Gauge with I2C Interface
LTC2941-1
Battery Gas Gauge with I2C Interface and Integrated
50mΩ Sense Resistor
LTC4150
Coulomb Counter/Battery Gas Gauge
Battery Chargers
LTC1734
Lithium-Ion Battery Charger in ThinSOT™
LTC4002
Switch Mode Lithium-Ion Battery Charger
LTC4052
Monolithic Lithium-Ion Battery Pulse Charger
LTC4053
USB Compatible Monolithic Li-Ion Battery Charger
LTC4057
Lithium-Ion Linear Battery Charger
LTC4058
Standalone 950mA Lithium-Ion Charger in DFN
LTC4059
900mA Linear Lithium-Ion Battery Charger
LTC4061
LTC4063
LTC4088
Standalone Linear Li-Ion Battery Charger with
Thermistor Input
Li-Ion Charger with Linear Regulator
High Efficiency Battery Charger/USB Power Manager
COMMENTS
2.7V to 5.5V Operation, 14-Bit ∆∑-ADC, Pin Compatible with LTC2941-1
2.7V to 5.5V Operation, Pin Compatible with LTC2942
2.7V to 5.5V Operation, Pin Compatible with LTC2942-1
2.7V to 8.5V Operation, 10-Pin MSOP Package
Simple ThinSOT Charger, No Blocking Diode, No Sense Resistor Needed
Standalone, 4.7V ≤ VIN ≤ 24V, 500kHz Frequency
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
18 Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
2942fa
LT 0810 REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 2010
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