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INA3221AIRGVT

更新时间： 2024-11-25 12:20:51
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德州仪器 - TI 监控
页数 文件大小 规格书
36页 552K
描述
Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor

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INA3221AIRGVT 数据手册

 浏览型号INA3221AIRGVT的Datasheet PDF文件第2页浏览型号INA3221AIRGVT的Datasheet PDF文件第3页浏览型号INA3221AIRGVT的Datasheet PDF文件第4页浏览型号INA3221AIRGVT的Datasheet PDF文件第5页浏览型号INA3221AIRGVT的Datasheet PDF文件第6页浏览型号INA3221AIRGVT的Datasheet PDF文件第7页 
INA3221  
www.ti.com  
SBOS576 –MAY 2012  
Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor  
with I2C™ Interface  
Check for Samples: INA3221  
1
FEATURES  
DESCRIPTION  
The INA3221 is a three-channel, high-side current  
and bus voltage monitor with an I2C interface. The  
INA3221 monitors both shunt voltage drops and bus  
supply voltages in addition to having programmable  
conversion times and averaging modes for these  
signals. The INA3221 offers both critical and warning  
alerts to detect multiple programmable out-of-range  
conditions for each channel.  
23  
•
Senses Bus Voltages From 0 V to +26 V  
Reports Shunt and Bus Voltage  
High Accuracy:  
•
•
–
–
Offset Voltage: ±80 µV (max)  
Gain Error: 0.25% (max)  
•
•
•
•
Configurable Averaging Options  
Four Programmable Addresses  
The INA3221 senses current on buses that can vary  
from 0 V to +26 V. The device is powered from a  
single +2.7-V to +5.5-V supply and draws 350 μA  
(typ) of supply current. The INA3221 is specified over  
the operating temperature range of –40°C to +125°C.  
The I2C interface features four programmable  
addresses.  
Power-Supply Operation: 2.7 V to 5.5 V  
Programmable Alert and Warning Outputs  
APPLICATIONS  
•
•
•
•
•
•
Computers  
Power Management  
Telecom Equipment  
Battery Chargers  
Power Supplies  
Test Equipment  
RELATED PRODUCTS  
DESCRIPTION  
DEVICE  
High- or low-side, bi-directional current and  
power monitor with two-wire interface  
INA226  
Zero-drift, bi-directional current power monitor  
with two-wire interface  
INA219  
INA209  
Current and power monitor with watchdog,  
peak-hold, and fast comparator functions  
Zero-drift, low-cost, analog current-shunt  
monitor series in small package  
INA210, INA211, INA212,  
INA213, INA214  
Power  
Supply  
(0V to 26V)  
CBYPASS  
0.1µF  
Load 1  
VS (Supply  
VIN+1  
Voltage)  
10kΩ  
VIN-  
1
Power  
Supply  
(0V to 26V)  
SDA  
SCL  
CH 1  
I2C  
Interface  
Bus  
Voltages 1-3  
A0  
CH 2  
VIN+2  
VPU  
VS  
Shunt  
Voltages 1-3  
ADC  
VIN-2  
10kΩ  
Critical Limit  
Alerts 1-3  
VPU  
Power Valid  
Critical  
CH 3  
Shunt Voltage  
Sum Alerts  
Load 2  
Warning  
Timing Control  
GND  
VIN+3  
VIN-3  
Power  
Supply  
(0V to 26V)  
Load 3  
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
3
I2C is a trademark of NXP Semiconductors.  
All other trademarks are the property of their respective owners.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2012, Texas Instruments Incorporated  
1234567...36

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INA3221AIRGVT 替代型号

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