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INA220BIDGST PDF预览

INA220BIDGST

更新时间： 2024-10-01 13:08:47
品牌 Logo 应用领域
德州仪器 - TI 监控监视器
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INA220BIDGST 数据手册

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INA220  
www.ti.com ............................................................................................................................................................. SBOS459B–JUNE 2009–REVISED JUNE 2009  
High or Low Side, Bi-Directional  
CURRENT/POWER MONITOR  
with Two-Wire Interface  
1
FEATURES  
DESCRIPTION  
2
•
HIGH- or LOW-SIDE SENSING  
The INA220 is a current shunt and power monitor  
with an Two-Wire interface. The INA220 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  
Two-Wire interface features 16 programmable  
addresses. The separate shunt input on the INA220  
allows it to be used in systems with low-side sensing.  
•
•
•
•
SENSES BUS VOLTAGES FROM 0V TO +26V  
REPORTS CURRENT, VOLTAGE, AND POWER  
16 PROGRAMMABLE ADDRESSES  
HIGH ACCURACY: 1% (Max) OVER  
TEMPERATURE  
•
•
•
USER PROGRAMMABLE CALIBRATION  
FAST (3.4MHz) TWO-WIRE MODE  
MSOP-10 PACKAGE  
The INA220 senses across shunts on buses that can  
vary from 0V to 26V, useful for low-side sensing or  
CPU power supplies. The device uses a single +3V  
to +5.5V supply, drawing a maximum of 1mA of  
supply current. The INA220 operates from –40°C to  
+125°C.  
APPLICATIONS  
•
•
•
•
•
•
•
•
SERVERS  
TELECOM EQUIPMENT  
NOTEBOOK COMPUTERS  
POWER MANAGEMENT  
BATTERY CHARGERS  
AUTOMOTIVE  
RELATED PRODUCTS  
DESCRIPTION  
DEVICE  
Current/Power Monitor with Watchdog,  
Peak-Hold, and Fast Comparator  
Functions  
INA209  
POWER SUPPLIES  
TEST EQUIPMENT  
Zerø-Drift, Low-Cost, Analog Current  
Shunt Monitor Series in Small  
Package  
INA210–INA214  
INA219  
Zerø-Drift, Bi-Directional Current  
Power Monitor with Two-Wire  
Interface  
Supply (0 to 26V)  
CBYPASS  
+3.3V to  
+5V  
0.1mF  
High-  
Side  
Shunt  
Bus Voltage Input  
VS (Supply Voltage)  
INA220  
SDA  
Power Register  
Current Register  
Voltage Register  
Load  
´
DATA  
CLK  
SCL  
Two-Wire  
Interface  
V
I
R2F  
R1F  
VIN+  
A0  
Low-  
Side  
Shunt  
ADC  
A1  
CF  
VIN-  
GND  
General Load, Low- or High-Side Sensing  
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
All 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 © 2009, Texas Instruments Incorporated  
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INA220BIDGST 替代型号

型号 品牌 替代类型 描述 数据表
INA220BIDGSR TI

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