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INA230

更新时间： 2024-09-25 11:46:03
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德州仪器 - TI /
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35页 845K
描述
High- or Low-Side Measurement

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INA230 数据手册

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INA230  
www.ti.com  
SBOS601 –FEBRUARY 2012  
High- or Low-Side Measurement,  
Bidirectional CURRENT/POWER MONITOR with I2C™ Interface  
Check for Samples: INA230  
1
FEATURES  
DESCRIPTION  
The INA230 is a current-shunt and power monitor  
23  
•
Bus Voltage Sensing From 0 V to +28 V  
High- or Low-Side Sensing  
with an I2C interface that features 16 programmable  
addresses. The INA230 monitors both shunt voltage  
drops and bus supply voltage. Programmable  
calibration value, conversion times, and averaging,  
combined with an internal multiplier, enable direct  
readouts of current in amperes and power in watts.  
•
•
•
Current, Voltage, and Power Reporting  
High Accuracy:  
–
–
0.5% Gain Error (Max)  
50-μV Offset (Max)  
The INA230 senses current on buses that vary from 0  
V to +28 V, with the device powered from a single  
+2.7 V to +5.5 V supply, drawing 330 μA (typical) of  
supply current. The INA230 is specified over the  
operating temperature range of –40°C to +125°C.  
•
•
•
•
Configurable Averaging Options  
Programmable Alert Threshold  
Power Supply Operation: 2.7 V to 5.5 V  
Package: 3-mm x 3-mm, 16-Pin QFN  
RELATED PRODUCTS  
DESCRIPTION  
APPLICATIONS  
DEVICE  
•
•
•
•
•
•
•
•
Smartphones  
Tablets  
Current/power monitor with watchdog, peak-hold,  
and fast comparator functions  
INA209  
INA210, INA211,  
INA212, INA213,  
INA214  
Zerø-drift, low-cost, analog current shunt monitor  
series in small package  
Servers  
Computers  
Zerø-drift, bidirectional current power monitor with  
two-wire interface  
INA219  
INA220  
Power Management  
Battery Chargers  
Power Supplies  
Test Equipment  
High or low side, bidirectional current/power monitor  
with two-wire interface  
HIGH-OR LOW-SIDE SENSING  
Power Supply  
(0 V to 28 V)  
CBYPASS  
0.1 mF  
VS  
BUS  
High-  
Side  
Shunt  
(Supply Voltage)  
INA230  
SDA  
SCL  
Power Register  
Current Register  
Voltage Register  
Alert Register  
´
Load  
V
I
I2C  
Interface  
ADC  
Low-  
Side  
Shunt  
ALERT  
A0  
A1  
GND  
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  
 
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