INA219 26V, Bi-Directional, High-Side, I2C Out Current/Power Monitor | TI.com

INA219 (ACTIVE)

26V, Bi-Directional, High-Side, I2C Out Current/Power Monitor

26V, Bi-Directional, High-Side, I2C Out Current/Power Monitor - INA219
 

Description

The INA219 is a current shunt and power monitor with an I2C- or SMBUS-compatible interface. The device monitors both shunt voltage drop and bus supply voltage, with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables direct readouts of current in amperes. An additional multiplying register calculates power in watts. The I2C- or SMBUS-compatible interface features 16 programmable addresses.

The INA219 is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications.

The INA219 senses across shunts on buses that can vary from 0 to 26 V. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current. The INA219 operates from –40°C to 125°C.

Features

  • Senses Bus Voltages from 0 to 26 V
  • Reports Current, Voltage, and Power
  • 16 Programmable Addresses
  • High Accuracy: 0.5% (Maximum) Over
    Temperature (INA219B)
  • Filtering Options
  • Calibration Registers
  • SOT23-8 and SOIC-8 Packages

View more

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)
INA219 INA220 INA220-Q1
26     26     26    
0     0     0    
50
100    
50
100    
50    
0.1     0.16     0.16    
1
0.5
0.25
0.125    
1
0.5
0.25
0.125    
1
0.5
0.25
0.125    
0.5
0.3    
0.5
0.3    
0.5    
83     83     33    
120     120     120    
5.5     5.5     5.5    
5.5     5.5     5.5    
3     3     3    
1     1     1    
I2C
SMBus    
I2C
SMBus    
I2C
SMBus    
Bi-directional
Programmable Gain    
Bi-directional
Low-side Capable
Programmable Gain    
Bi-directional
Low-side Capable
Programmable Gain    
Catalog     Catalog     Automotive    
-40 to 125     -40 to 125     -40 to 125    
SOIC | 8
SOT-23 | 8    
VSSOP | 10     VSSOP | 10    
8SOIC: 29 mm2: 6 x 4.9 (SOIC | 8)
8SOT-23: 8 mm2: 2.8 x 2.9 (SOT-23 | 8)    
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)     10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)    

INA219 Error Analysis

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