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参数资料
| 型号： | DC1496A-B |
| 厂商： | Linear Technology |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL LTC2942 |
| 设计资源： | DC1496A Design Files DC1496A Schematic |
| 标准包装： | 1 |
| 系列： | QuikEval™ |
| 主要目的： | 电源管理，电池监控器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | LTC2942 |
| 主要属性： | I²C、SMBus 接口 |
| 次要属性： | LED 状态指示器 |
| 已供物品： | 板 |
LTC2942
Battery Gas Gauge
with Temperature,
Voltage Measurement
Indicates Accumulated Battery Charge and
High Accuracy Analog Integration
ADC Measures Battery Voltage and Temperature
Integrated Temperature Sensor
High Side Sense
1% Voltage and Charge Accuracy
±50mV Sense Voltage Range
SMBus/I 2 C Interface
Configurable Alert Output/Charge Complete Input
2.7V to 5.5V Operating Range
Quiescent Current Less than 100μA
Small 6-Pin 2mm × 3mm DFN package
Low Power Handheld Products
Cellular Phones
MP3 Players
Cameras
GPS
FEATURES
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Discharge
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APPLICATIONS
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DESCRIPTION
The LTC ? 2942 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 a 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 ?∑? ADC. The three measured
quantities (charge, voltage and temperature) are stored in
internal registers accessible via the onboard SMBus/I 2 C
interface.
The LTC2942 features programmable high and low thresh-
olds for all three measured quantities. If a programmed
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 LTC2942 requires only a single low value sense resis-
tor to set the measured current range.
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.
TYPICAL APPLICATION
Total Charge Error vs
Differential Sense Voltage
2.0
V SENSE+ = 3.6V
CHARGER
SENSE +
LOAD
0.1μF
1.5
1.0
I 2 C/SMBus
TO HOST
LTC2942
AL /CC
SDA SENSE –
SCL
GND
+
R SENSE
100m
1-CELL
Li-Ion
2942 TA01a
0.5
0
–0.5
–1.0
–1.5
–2.0
0.1
1
10
100
V SENSE (mV)
2942 TA01b
2942fa
1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DC1496B-A | 制造商:Linear Technology 功能描述:BOARD EVAL LTC2941 制造商:Linear Technology 功能描述:LTC2941 BATTERY GAS GAUGE EV 制造商:Linear Technology 功能描述:DEMO BOARD, LTC2941IDCB BATTERY GAS GAUGE; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2941; Kit Application Type:Power Management; Application Sub Type:Fuel Gauge; Kit Contents:Demo Board LTC2941 |
| DC1496B-B | 功能描述:BOARD EVAL LTC2942 RoHS:否 类别:编程器，开发系统 >> 评估演示板和套件 系列:QuikEval™ 标准包装:1 系列:- 主要目的:数字电位器 嵌入式:- 已用 IC / 零件:AD5258 主要属性:- 次要属性:- 已供物品:板 相关产品:AD5258BRMZ1-ND - IC POT DGTL I2C1K 64P 10MSOPAD5258BRMZ10-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ100-ND - IC POT DGTL I2C 100K 64P 10MSOPAD5258BRMZ50-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ1-R7-ND - IC POT DGTL I2C 1K 64P 10MSOPAD5258BRMZ10-R7-ND - IC POT DGTL I2C 10K 64P 10MSOPAD5258BRMZ50-R7-ND - IC POT DGTL I2C 50K 64P 10MSOPAD5258BRMZ100-R7-ND - IC POT DGTL I2C 100K 64P 10MSOP |
| DC1496B-B | 制造商:Linear Technology 功能描述:EVAL BOARD, LTC2942 BATTERY FUEL GAUGE |
| DC1496B-C | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC2941-1 制造商:Linear Technology 功能描述:LTC2941-1 BATTERY GAS GAUGE 制造商:Linear Technology 功能描述:DEMO BOARD, LTC2941IDCB-1 BATTERY GAS GAUGE; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2941; Kit Application Type:Power Management; Application Sub Type:Fuel Gauge; Kit Contents:Demo Board LTC2941 |
| DC1496B-D | 制造商:Linear Technology 功能描述:BOARD EVAL FOR LTC2942-1 制造商:Linear Technology 功能描述:LTC2942-1 BATTERY GAS GAUGE 制造商:Linear Technology 功能描述:DEMO BOARD, LTC2942IDCB-1 BATTERY GAS GAUGE; Silicon Manufacturer:Linear Technology; Silicon Core Number:LTC2942; Kit Application Type:Power Management; Application Sub Type:Fuel Gauge; Kit Contents:Demo Board LTC2942 |
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