Datasheet Linear Technology LTC2942

Manufacturer	Linear Technology
Series	LTC2942

Battery Gas Gauge with Temperature, Voltage Measurement

Datasheets

PDF, 237 Kb, Revision: A, File uploaded: Oct 23, 2017

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Prices

Packaging

	LTC2942CDCB#PBF	LTC2942CDCB#TRMPBF	LTC2942CDCB#TRPBF	LTC2942IDCB#PBF	LTC2942IDCB#TRMPBF	LTC2942IDCB#TRPBF
N	1	2	3	4	5	6
Package	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing	2x3 DFN-6 Package Outline Drawing
Package Code	DCB	DCB	DCB	DCB	DCB	DCB
Package Index	05-08-1715	05-08-1715	05-08-1715	05-08-1715	05-08-1715	05-08-1715
Pin Count	6	6	6	6	6	6

Parametrics

Parameters / Models	LTC2942CDCB#PBF	LTC2942CDCB#TRMPBF	LTC2942CDCB#TRPBF	LTC2942IDCB#PBF	LTC2942IDCB#TRMPBF	LTC2942IDCB#TRPBF
ADC	14-Bit	14-Bit	14-Bit	14-Bit	14-Bit	14-Bit
Number of Channels	1	1	1	1	1	1
Demo Boards	DC1496C-B	DC1496C-B	DC1496C-B	DC1496C-B	DC1496C-B	DC1496C-B
Design Tools	LTspice Model,Linduino File	LTspice Model,Linduino File	LTspice Model,Linduino File	LTspice Model,Linduino File	LTspice Model,Linduino File	LTspice Model,Linduino File
Export Control	no	no	no	no	no	no
I/O	Serial I2C	Serial I2C	Serial I2C	Serial I2C	Serial I2C	Serial I2C
Internal Temp Sense Accuracy, В°C	5	5	5	5	5	5
Isupply, mA	0.07	0.07	0.07	0.07	0.07	0.07
Monitors	Coulomb Counter, External V, Internal Temperature	Coulomb Counter, External V, Internal Temperature	Coulomb Counter, External V, Internal Temperature	Coulomb Counter, External V, Internal Temperature	Coulomb Counter, External V, Internal Temperature	Coulomb Counter, External V, Internal Temperature
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	-40 to 85	-40 to 85	-40 to 85
Output	Digital	Digital	Digital	Digital	Digital	Digital
Sensor Type	Internal	Internal	Internal	Internal	Internal	Internal
Supply Voltage Range	2.7V to 5.5V	2.7V to 5.5V	2.7V to 5.5V	2.7V to 5.5V	2.7V to 5.5V	2.7V to 5.5V

Eco Plan

	LTC2942CDCB#PBF	LTC2942CDCB#TRMPBF	LTC2942CDCB#TRPBF	LTC2942IDCB#PBF	LTC2942IDCB#TRMPBF	LTC2942IDCB#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Articles

Download
Tiny, Accurate Battery Gas Gauges with Easy-to-Use I2C Interface and Optional Integrated Precision Sense Resistors &mdash LT Journal
PDF, 732 Kb, File published: Apr 1, 2010
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Tiny, Accurate Battery Gas Gauges with Easy-to-Use I2C
Interface and Optional Integrated Precision Sense Resistors
Christoph Schwoerer, Axel Klein and Bernhard Engl Imagine your daughter is catching her first wave on a
surfboard and your video camera shuts down because the
batteryвЂ”reading half full when you started filming a few
minutes agoвЂ”is suddenly empty. The problem is inaccurate
battery gas gauging. Inaccurate fuel gauging is a common
nuisance as many portable devices derive remaining
battery capacity directly from battery voltage. This method
is cheap but inaccurate since the relationship between
battery voltage and capacity has a complex dependency
on temperature, load conditions and usage history.
More accurate battery gauging can be
achieved by monitoring not only the
battery voltage but also by tracking the
charge that goes in and out of the battery. For applications requiring accurate
battery gas gauging, the LTC2941 and
LTC2942 coulomb counters are tiny and
easy-to-use solutions. These feature-rich
devices are small and integrated enough to
fit easily into the latest handheld gadgets.
The LTC2941 is a battery gas gauge device
designed for use with single Li-Ion cells …

Model Line

Series: LTC2942 (6)

LTC2942CDCB#PBF LTC2942CDCB#TRMPBF LTC2942CDCB#TRPBF LTC2942IDCB#PBF LTC2942IDCB#TRMPBF LTC2942IDCB#TRPBF

Manufacturer's Classification

Power Management > Battery Management > Coulomb Counter (Battery Fuel Gauge)
Monitor, Control and Protection > Temperature Monitors > Digital Temperature Measurement Systems

EMS supplier

Slices

Microcontrollers