參數(shù)資料
型號： LTC2942CDCB-1#TRPBF
廠商： LINEAR TECHNOLOGY CORP
元件分類： 電源管理
英文描述： POWER SUPPLY SUPPORT CKT, PDSO6
封裝： 2 X 3 MM, LEAD FREE, PLASTIC, MO-229TBD, DFN-6
文件頁數(shù)： 1/16頁
文件大?。?/td> 230K
代理商： LTC2942CDCB-1#TRPBF
LTC2942-1
29421f
Typical applicaTion
DescripTion
1A Battery Gas Gauge with
Internal Sense Resistor and
Temperature/Voltage
Measurement
The LTC2942-1 measures battery charge state, battery
voltage and chip temperature in 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 an internal sense
resistor between the battery’s positive terminal and the
load or charger. Battery voltage and on-chip temperature
are measured with an internal 14-bit No Latency
Σ
ADC. The three measured quantities (charge, voltage and
temperature) are stored in internal registers accessible via
the onboard SMBus/I2C interface.
The LTC2942-1 features programmable high and low
thresholds for all three measured quantities. If a pro-
grammedthresholdisexceeded,thedevicecommunicates
an alert using either the SMBus alert protocol or by setting
a flag in the internal status register.
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
No Latency
Σ, ThinSOT and Bat-Track are trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
FeaTures
applicaTions
n
Indicates Accumulated Battery Charge and
Discharge
n
SMBus/I2C Interface
n
Integrated 50mΩ High Side Sense Resistor
n
±1A Sense Current Range
n
High Accuracy Analog Integration
n
ADC Measures Battery Voltage and Temperature
n
Integrated Temperature Sensor
n
1% Voltage and Charge Accuracy
n
Configurable Alert Output/Charge Complete Input
n
2.7V to 5.5V Operating Range
n
Quiescent Current Less than 100A
n
Small 6-Pin 2mm
× 3mm DFN package
n
Low Power Handheld Products
n
Cellular Phones
n
MP3 Players
n
Cameras
n
GPS
Total Charge Error vs Sense Current
+
SENSE+
I2C/SMBus
TO HOST
SENSE–
CHARGER
LTC2942-1
AL/CC
SDA
LOAD
0.1F
29421 TA01a
1-CELL
Li-Ion
SCL
GND
|ISENSE| (mA)
1
–0.50
CHARGE
ERROR
(%)
0
–0.25
–0.75
0.25
0.50
10
100
1000
29421 TA01b
–1.00
VSENSE+ = 3.6V
1.00
0.75
相關(guān)PDF資料
PDF描述
LTC2942IDCB#TRPBF POWER SUPPLY SUPPORT CKT, PDSO6
LTC2942CDCB#TRPBF POWER SUPPLY SUPPORT CKT, PDSO6
LTC2990CMS#PBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
LTC2990CMS#TR 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
LTC2990IMS#PBF 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO10
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC2942IDCB#PBF 制造商:Linear Technology 功能描述:BATTERY GAS GAUGE LI-ION 5.5V DFN-6 制造商:Linear Technology 功能描述:BATTERY GAS GAUGE, LI-ION, 5.5V, DFN-6 制造商:Linear Technology 功能描述:BATTERY GAS GAUGE, LI-ION, 5.5V, DFN-6, Battery Management Function:Fuel Gauge, Status Monitor, Battery Type:Li-Ion, Supply Voltage Min:2.7V, Supply Voltage Max:5.5V, Battery IC Case Style:DFN, No. of Pins:6, MSL:MSL 1 - Unlimited , RoHS Compliant: Yes 制造商:Linear Technology 功能描述:MS-System Monitor/Other, Cut Tape Battery Gas Gauge with Temperature & Voltage M
LTC2942IDCB#TRMPBF 功能描述:IC FUEL/GAS GAUGE LI-ION 6DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 其它有關(guān)文件:STC3100 View All Specifications 特色產(chǎn)品:STC3100 - Battery Monitor IC 標(biāo)準(zhǔn)包裝:4,000 系列:- 功能:燃料，電量檢測計/監(jiān)控器 電池化學(xué):鋰離子（Li-Ion） 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-MiniSO 包裝:帶卷 (TR) 其它名稱:497-10526-2
LTC2942IDCB#TRPBF 功能描述:IC FUEL/GAS GAUGE LI-ION 6DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電池管理 系列:- 標(biāo)準(zhǔn)包裝:61 系列:- 功能:電源管理 電池化學(xué):鋰離子（Li-Ion）、鋰聚合物（Li-Pol） 電源電壓:4.35 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:22-WFDFN 裸露焊盤 供應(yīng)商設(shè)備封裝:22-DFN（6x3）裸露焊盤 包裝:管件
LTC2942IDCB-1#PBF 制造商:Linear Technology 功能描述:BATTERY FUEL GAUGE LI-ION 5.5V DFN-6 制造商:Linear Technology 功能描述:IC, BATTERY FUEL GAUGE, LI-ION, 5.5V, DFN-6, Battery Management Function:Fuel Gauge, Charge Controller, Battery Type:Li-Ion, Supply Voltage Min:2.7V, Supply Voltage Max:5.5V, Battery IC Case Style:DFN, No. of Pins:6 , RoHS Compliant: Yes
LTC2942IDCB-1#PBF 制造商:Linear Technology 功能描述:IC BATTERY FUEL GAUGE LI-ION 5.5V DFN-6
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