INA223 Reference Design Circuit | Power Monitor Application Circuit

Shunluo Inductance Power Inductor SWPA Series First Class Agent

Industrial Router Crystal 3.2*2.5mm 3225 26M (26.000MHZ) 12PF 10PPM 20PPM 30PPM

High-power led lamp beads 1W white light Sanan 30mil high power LED lamp beads imitation lumens

Photocoupler

The INA223 is a voltage output device. This section introduces the INA223 features, application range, reference design circuit, and circuit analysis to help you reduce design time.

INA223 Features:

The device monitors the current, bus voltage, and power line power by sensing the voltage drop across the common-mode voltage from 0V to 26V. The common mode voltage range is independent of the supply voltage. The low offset of the zero-drift architecture reduces the maximum sense of current sensing to a full scale of 10mV throughout the shunt.

Operating from a single +2.7V to +5.5V supply, the INA223 consumes a maximum supply current of 250μA. The device is specified over the extended temperature range of -40°C to +105°C and is available in a small outline leadless (SON)-10 package.

Typical applications for INA223 include: notebook computers, mobile phones, telecommunications equipment, power management

INA223 internal structure block diagram:

INA223 reference design circuit:

INA223 application circuit analysis: the typical application circuit for the INA223. The input pins, VIN+ and VIN– , should be connected as close as possible to the shunt resistor to minimize any resistance in series with the shunt resistance. A powersupply bypass capacitor is required Use a 0.1-μF ceramic capacitor for supply bypassing, placed as close as possible between the supply and ground pins.

INA223 Chinese information: Click to download

Popular application circuits with schematics and source code can be found at: