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参数资料
| 型号： | LTC2941IDCB#TRMPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 电源管理 |
| 英文描述： | POWER SUPPLY SUPPORT CKT, PDSO6 |
| 封装： | 2 X 3 MM, LEAD FREE, PLASTIC, MO-229, DFN-6 |
| 文件页数： | 1/16页 |
| 文件大小： | 199K |
| 代理商： | LTC2941IDCB#TRMPBF |
LTC2941
1
2941fa
Typical applicaTion
DescripTion
Battery Gas Gauge
with I2C Interface
The LTC2941 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.
TheLTC2941featuresprogrammablehighandlowthresh-
oldsforaccumulatedcharge.Ifathresholdisexceeded,the
devicecommunicatesanalertusingeithertheSMBusalert
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 100A
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
0.1F
2941 TA01a
1-CELL
Li-Ion
RSENSE
100m
SCL
GND
L
, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ThinSOT and Bat-Track are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
VSENSE (mV)
0.1
–1.0
CHARGE
ERROR
(%)
0
–0.5
–1.5
0.5
1.0
1
10
100
2941 TA01b
–2.0
VSENSE+ = 3.6V
2.0
1.5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC2942CDCB#PBF | 制造商:Linear Technology 功能描述:IC, BATTERY GAS GAUGE, LI-ION, DFN-6; Battery Management Function:Fuel Gauge; Battery Type:Li-Ion; Supply Voltage Min:2.7V; Supply Voltage Max:5.5V; Battery IC Case Style:DFN; No. of Pins:6; IC Interface Type:I2C ;RoHS Compliant: Yes |
| LTC2942CDCB#TRMPBF | 功能描述:IC FUEL/GAS GAUGE LI-ION 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
| LTC2942CDCB#TRPBF | 功能描述:IC FUEL/GAS GAUGE LI-ION 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:61 系列:- 功能:电源管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:4.35 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:22-WFDFN 裸露焊盘 供应商设备封装:22-DFN（6x3）裸露焊盘 包装:管件 |
| LTC2942CDCB-1#PBF | 制造商:Linear Technology 功能描述:IC 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 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 |
| LTC2942CDCB-1#TRMPBF | 功能描述:IC FUEL/GAS GAUGE LI-ION 1A 6DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 其它有关文件:STC3100 View All Specifications 特色产品:STC3100 - Battery Monitor IC 标准包装:4,000 系列:- 功能:燃料，电量检测计/监控器 电池化学:锂离子（Li-Ion） 电源电压:2.7 V ~ 5.5 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MiniSO 包装:带卷 (TR) 其它名称:497-10526-2 |
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