900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Linear Technology Electronic Components Datasheet

LTC2941 Datasheet

Battery Gas Gauge

No Preview Available !

LTC2941
Battery Gas Gauge with I2C Interface
FEATURES
nn Indicates Accumulated Battery Charge
and Discharge
nn High Accuracy Analog Integration
nn High Side Sense
nn 1% Charge Accuracy
nn ±50mV Sense Voltage Range
nn SMBus/I2C Interface
nn Configurable Alert Output/Charge Complete Input
nn 2.7V to 5.5V Operating Range
nn Quiescent Current Less Than 100µA
nn Small 6-Pin 2mm × 3mm DFN and 8-Lead
MSOP Packages
APPLICATIONS
nn Low Power Handheld Products
nn Cellular Phones
nn MP3 Player
nn Cameras
nn GPS
DESCRIPTION
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
thresholds 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 inter-
nal status register.
The LTC2941 requires only a single low value external
sense resistor to set the current range.
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
CHARGER
I2C/SMBus
TO HOST
SENSE+
LTC2941
AL/CC
SDA SENSE
SCL
GND
RSENSE
100mΩ
+ 1-CELL
Li-Ion
2941 TA01a
LOAD
0.1µF
Total Charge Error vs
Differential Sense Voltage
2.0
VSENSE+ = 3.6V
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0.1
1 10
VSENSE (mV)
100
2941 TA01b
Document Feedback
For more information www.analog.com
Rev. C
1


Linear Technology Electronic Components Datasheet

LTC2941 Datasheet

Battery Gas Gauge

No Preview Available !

LTC2941
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2)
Supply Voltage (SENSE+).............................. –0.3V to 6V
SCL, SDA, AL/CC.......................................... –0.3V to 6V
SENSE................................... –0.3V to (VSENSE+ + 0.3V)
Operating Ambient Temperature Range
LTC2941C................................................. 0°C to 70°C
LTC2941I..............................................–40°C to 85°C
Storage Temperature Range..................... –65°C to 150°
PIN CONFIGURATION
SENSE+ 1
GND 2
SCL 3
TOP VIEW
7
6 SENSE
5 AL/CC
4 SDA
DCB PACKAGE
6-LEAD (2mm × 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 120°C/W
EXPOSED PAD (PIN 7), DO NOT CONNECT
SENSE+ 1
GND 2
SCL 3
DNC 4
TOP VIEW
9
8 SENSE
7 AL/CC
6 SDA
5 DNC
MSE PACKAGE
8-LEAD PLASTIC MSOP
PIN 4, PIN 5 AND EXPOSED PAD (PIN 9), DO NOT CONNECT
ORDER INFORMATION
Lead Free Finish
TAPE AND REEL (MINI) TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2941CDCB#TRMPBF LTC2941CDCB#TRPBF LFKQ
6-Lead (2mm × 3mm) Plastic DFN
0°C to 70°C
LTC2941IDCB#TRMPBF LTC2941IDCB#TRPBF LFKQ
6-Lead (2mm × 3mm) Plastic DFN
–40°C to 85°C
TUBE
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2941CMS8E#PBF
LTC2941CMS8E#TRPBF LTGVY
8-Lead Plastic MSOP
0°C to 70°C
LTC2941IMS8E#PBF
LTC2941IMS8E#TRPBF LTGVY
8-Lead Plastic MSOP
–40°C to 85°C
TRM = 500 pieces.
Contact the factory for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Tape and reel specifications. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix.
Rev. C
2 For more information www.analog.com


Part Number LTC2941
Description Battery Gas Gauge
Maker Linear Technology
PDF Download

LTC2941 Datasheet PDF






Similar Datasheet

1 LTC2941 Battery Gas Gauge
Linear Technology
2 LTC2941-1 1A I2C Battery Gas Gauge
Linear
3 LTC2942 Battery Gas Gauge
Linear Technology
4 LTC2942-1 1A Battery Gas Gauge
Linear Technology
5 LTC2945 Wide Range I2C Power Monitor
Linear
6 LTC2946 Charge and Energy Monitor
Linear Technology
7 LTC2947 30A Power/Energy Monitor
Linear Technology





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy