INA230 28V, Bi-Directional, Low-/High-Side, I2C Out Current/Power Monitor w/Alert | TI.com

INA230 (ACTIVE)

28V, Bi-Directional, Low-/High-Side, I2C Out Current/Power Monitor w/Alert

 

Description

The INA230 is a current-shunt and power monitor 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.

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.

Features

  • Bus Voltage Sensing From 0 V to +28 V
  • High- or Low-Side Sensing
  • Current, Voltage, and Power Reporting
  • High Accuracy:
    • 0.5% Gain Error (Max)
    • 50-µV Offset (Max)
  • 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

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Parametrics Compare all products in Current/voltage/power monitors

 
Common mode voltage (Max) (V)
Common mode voltage (Min) (V)
Input offset (+/-) (Max) (uV)
Input offset drift (+/-) (Typ) (uV/C)
Gain (V/V)
Gain error (%)
Gain error drift (+/-) (Max) (ppm/°C)
CMRR (Min) (dB)
Bandwidth (kHz)
Supply Voltage (Max) (V)
Supply Voltage (Min) (V)
Iq (Max) (mA)
Digital interface
Features
Rating
Operating temperature range (C)
Package Group
Package size: mm2:W x L (PKG)
INA230 INA226 INA233
28     36     36    
0     0     0    
50     10     10    
0.1     0.02     0.02    
1     1     1    
0.5     0.1     0.1    
50     50     25    
100     126     126    
3.5     3.5     3.5    
5.5     5.5     5.5    
2.7     2.7     2.7    
0.42     0.42     0.4    
I2C
SMBus    
I2C
SMBus    
I2C
PMBus
SMBus    
Alert Function
Bi-directional
Low-side Capable    
Alert Function
Bi-directional
Low-side Capable    
Alert Function
Bi-directional
Integrated Power Accumulator
Low-side Capable    
Catalog     Catalog     Catalog    
-40 to 125     -40 to 125     -40 to 125    
VQFN | 16     VSSOP | 10     VSSOP | 10    
16VQFN: 9 mm2: 3 x 3 (VQFN | 16)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    

Design tool

INA230 Error Analysis

0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A
A ≤ 100 
2.7 ≤ 
V ≤ 36
0 ≤ 
V ≤ 36
-40 ≤ 
C ≤ 125