LTC2941CDCB datasheet(1/16 Pages) LINER

tên linh kiện	LTC2941CDCB

Giải thích chi tiết về linh kiện	Battery Gas Gauge with I2C Interface

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LTC2941

1

2941f

TYPICAL APPLICATION

DESCRIPTION

Battery Gas Gauge

with I2C Interface

The LTC

®2941 measures battery charge state in battery-

supplied handheld PC and portable product applications.

Its operating range is perfectly suited for single cell Li-Ion

batteries. A precision coulomb counter integrates current

through a sense resistor between the battery’s positive

terminal and the load or charger. The measured charge

is stored in internal registers. An SMBus/I2C interface

accesses and conﬁgures the device.

The LTC2941 features programmable high and low thresh-

olds for accumulated charge. If a threshold is exceeded,

the device communicates an alert using either the SMBus

alert protocol or by setting a ﬂag in the internal status

register.

The LTC2941 requires only a single low value external

sense resistor to set the current range.

FEATURES

APPLICATIONS

n Indicates Accumulated Battery Charge and

Discharge

n High Accuracy Analog Integration

n High Side Sense

n 1% Charge Accuracy

n ±50mV Sense Voltage Range

n SMBus/I2C Interface

n Conﬁgurable Alert Output/Charge Complete Input

n 2.7V to 5.5V Operating Range

n Quiescent Current Less than 100μA

n Small 6-Pin 2mm × 3mm DFN package

n Low Power Handheld Products

n Cellular Phones

n MP3 Player

n Cameras

n GPS

Total Charge Error vs

Differential Sense Voltage

+

SENSE+

I2C/SMBus

TO HOST

SENSE–

CHARGER

LTC2941

AL/CC

SDA

LOAD

0.1μF

2941 TA01a

1-CELL

Li-Ion

RSENSE

100mΩ

SCL

GND

L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear

Technology Corporation. All other trademarks are the property of their respective owners.

VSENSE (mV)

0.1

–1.0

0

–0.5

–1.5

0.5

1.0

1

10

100

2941 TA01b

–2.0

VSENSE+ = 3.6V

2.0

1.5

Số phần tương tự - LTC2941CDCB

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Linear Technology	LTC2941	209Kb / 16P	Battery Gas Gauge with IC Interface
Analog Devices	LTC2941	714Kb / 18P	Ultra-Low Power Battery Gas Gauge Rev. 0
Linear Technology	LTC2941-1	216Kb / 16P	1A I2C Battery Gas Gauge with Internal Sense Resistor
	LTC2941-1	216Kb / 16P	1A I2C Battery Gas Gauge with Internal Sense Resistor
	LTC2941	209Kb / 16P	Battery Gas Gauge with IC Interface

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nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
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Linear Technology	LTC2942	180Kb / 16P	Battery Gas Gauge with Temperature, Voltage Measurement
	LTC4150	172Kb / 14P	Coulomb Counter/ Battery Gas Gauge
	LTC2941	209Kb / 16P	Battery Gas Gauge with IC Interface
	LTC2942	237Kb / 18P	Battery Gas Gauge with Temperature, Voltage Measurement
	LTC2941-1	216Kb / 16P	1A I2C Battery Gas Gauge with Internal Sense Resistor
Texas Instruments	BQ2040	992Kb / 36P	Gas Gauge IC With SMBus Interface
Linear Technology	LTC2941-1	216Kb / 16P	1A I2C Battery Gas Gauge with Internal Sense Resistor

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