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INA220B-Q1

更新时间: 2024-10-01 12:21:35
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德州仪器 - TI 监控
页数 文件大小 规格书
39页 1077K
描述
High- or Low-Side, Bidirectional Current Power Monitor with 2-Wire Interface

INA220B-Q1 数据手册

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INA220B-Q1  
www.ti.com  
SLOS785A JUNE 2012REVISED JUNE 2012  
High- or Low-Side, Bidirectional  
Current Power Monitor with 2-Wire Interface  
Check for Samples: INA220B-Q1  
1
FEATURES  
DESCRIPTION  
The INA220B-Q1 device is a current shunt and power  
Qualified for Automotive Applications  
monitor with an 2-wire interface. The INA220B-Q1  
device monitors both shunt drop and supply voltage.  
A programmable calibration value, combined with an  
internal multiplier, enables direct readouts in  
amperes. An additional multiplying register calculates  
power in watts. The 2-wire interface features 16  
programmable addresses. The separate shunt input  
on the INA220B-Q1 device allows it to be used in  
systems with low-side sensing.  
AEC-Q100 Qualified with the following results:  
Device Temperature Grade 1: –40°C to  
125°C Ambient Operating Temperature  
Range  
Device HBM ESD Classification Level H2  
Device CDM ESD Classification Level C3B  
High- or Low-Side Sensing  
Senses Bus Voltages From 0 V to 26 V  
Reports Current, Voltage, and Power  
16 Programmable Addresses  
The INA220B-Q1 device is available in two grades: A  
and B. The B grade version has higher accuracy and  
higher precision specifications.  
The INA220B-Q1 device senses across shunts on  
buses that can vary from 0 V to 26 V, useful for low-  
side sensing or CPU power supplies. The device  
uses a single 3 V to 5.5 V supply, drawing a  
maximum of 1 mA of supply current. The INA220B-  
Q1 device operates from –40°C to 125°C.  
High Accuracy: 0.5% (Max) Over Temperature  
(INA220B-Q1)  
User-Programmable Calibration  
Fast (3.4 MHz) 2-Wire Mode  
MSOP-10 Package  
RELATED PRODUCTS  
DESCRIPTION  
APPLICATIONS  
DEVICE  
Automotive  
Current/Power Monitor with Watchdog, Peak-Hold,  
and Fast Comparator Functions  
INA209  
Servers  
INA210, INA211,  
INA212, INA213,  
INA214  
Telecom Equipment  
Notebook Computers  
Power Management  
Battery Chargers  
Power Supplies  
Test Equipment  
Zero-Drift, Low-Cost, Analog Current Shunt Monitor  
Series in Small Package  
Zero-Drift, Bidirectional Current Power Monitor with  
2-Wire Interface  
INA219  
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.  
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  
 

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