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Gas Gauge LTC2943 DATASHEET

2018-04-16 10:11:06 大小:260K 上传用户:ldh135 浏览次数:24 下载积分:1分 下载次数:0 标签:ltc2943datasheet 评价赚积分 ( 如何评价赚积分?) 出售积分赚钱

资料说明

LTC2943是宽电压范围的电池库伦计,从3.6V到20V,14BIT高精度ADC检测电流和温度,非常好用。

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文件名 大小
LTC2943.pdf 260K

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LTC2943.pdf - 文件:
Multicell Battery Gas Gauge
with Temperature, Voltage
and Current Measurement
DESCRIPTION
Measures Accumulated Battery Charge and Discharge
n 3.6V to 20V Operating Range for Multiple Cells
Application
n 14-Bit ADC Measures Voltage, Current and
Temperature
n 1% Voltage, Current and Charge Accuracy
n ±50mV Sense Voltage Range
n High Side Sense
n General Purpose Measurements for Any Battery
Chemistry and Capacity
n I2C/SMBus Interface
n Configurable Alert Output/Charge Complete Input
n Quiescent Current Less Than 120µA
n Small 8-Lead 3mm × 3mm DFN Package
The LTC®2943 measures battery charge state, battery voltage, battery current and its own temperature in portable
product applications. The wide input voltage range allows
use with multicell batteries up to 20V. A precision coulomb
counter integrates current through a sense resistor between
the battery’s positive terminal and the load or charger.
Voltage, current and temperature are measured with an
internal 14-bit No Latency ΔΣ™ ADC. The measurements
are stored in internal registers accessible via the onboard
I2C/SMBus Interface.
APPLICATIONS
Power Tools
Electric Bicycles
Portable Medical Equipment
Video Cameras
The LTC2943 features programmable high and low thresholds for all four 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 LTC2943 requires only
a single low value sense resistor to set the measured
current range.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
No Latency ∆Σ and PowerPath 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
.............

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