INA226 (供給中)

36V、双方向、超高精度、ローまたはハイサイド、I2C 出力電流/電力モニタ、アラート付き

 

概要

The INA226 is a current shunt and power monitor with an I2C™- or SMBUS-compatible interface. The device monitors both a shunt voltage drop 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 INA226 senses current on common-mode bus voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device operates from a single 2.7-V to 5.5-V supply, drawing a typical of 330 µA of supply current. The device is specified over the operating temperature range between –40°C and 125\xC2°C and features up to 16 programmable addresses on the I2C-compatible interface.

特長

  • Senses Bus Voltages From 0 V to 36 V
  • High-Side or Low-Side Sensing
  • Reports Current, Voltage, and Power
  • High Accuracy:
    • 0.1% Gain Error (Max)
    • 10 µV Offset (Max)
  • Configurable Averaging Options
  • 16 Programmable Addresses
  • Operates from 2.7-V to 5.5-V Power Supply
  • 10-Pin, DGS (VSSOP) Package

詳細を表示

機能一覧 他の製品と比較 電流センスの電力/電流モニタ

 
Common Mode Voltage (Max) (V)
Input Offset (+/-) (Max) (uV)
Input Offset Drift (+/-) (Typ) (uV/C)
Gain (V/V)
Gain Error (%)
CMRR (Min) (dB)
Bandwidth (kHz)
Supply Voltage (Max) (V)
Supply Voltage (Min) (V)
Iq (Max) (mA)
Features
Digital Interface
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
Common Mode Voltage (Min) (V)
Gain Error Drift (Max) (ppm/°C)
INA226 INA230 INA233
36    28    36   
10    50    10   
0.02    0.1    0.02   
1    1    1   
0.1    0.5    0.1   
126    100    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   
Alert Function
Bi-directional
I2C
Low-side Capable   
Alert Function
Bi-directional
I2C
Low-side Capable   
Alert Function
I2C
Integrated Power Monitor
Low-side Capable
PMBus   
I2C    I2C    I2C
PMBus
SMBus   
Catalog    Catalog    Catalog   
-40 to 125    -40 to 125    -40 to 125   
VSSOP    VQFN    VSSOP   
10VSSOP: 15 mm2: 4.9 x 3(VSSOP)    16VQFN: 9 mm2: 3 x 3(VQFN)    10VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
0    0    0   
50    50    25   

その他の認定バージョン INA226

バージョン 型番 定義
オートモーティブ INA226-Q1 欠陥ゼロを目標とする高信頼性オートモーティブ・アプリケーションに対する認定を受けた Q100 デバイス

INA226 Error Analysis

0.001m ≤ 
 mOhm ≤ 100m
0.0001 ≤ 
A
A ≤ 100 
2.7 ≤ 
V ≤ 5.5
0 ≤ 
V ≤ 36
-40 ≤ 
C ≤ 125