MAX4073F

Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier

Data Sheet (Rev. 1)
Viewing:

Overview

  • Low-Cost, Compact, Current-Sense Solution
  • Three Gain Versions Available
    • +20V/V (MAX4073T)
    • +50V/V (MAX4073F)
    • +100V/V (MAX4073H)
  • ±1.0% Full-Scale Accuracy
  • 500µA Supply Current
  • Wide 1.8MHz Bandwidth
  • +3V to +28V Operating Supply
  • Wide +2V to +28V Common-Mode Range Independent of Supply Voltage
  • Automotive Temperature Range (-40°C to +125°C)
  • Available in Space-Saving 5-Pin SC70 Package

The MAX4073 low-cost, high-side current-sense amplifier features a voltage output that eliminates the need for gain-setting resistors making it ideal for cell phones, notebook computers, PDAs, and other systems where current monitoring is crucial. High-side current monitoring does not interfere with the ground path of the battery charger making the MAX4073 particularly useful in battery-powered systems. The input common-mode range of +2V to +28V is independent of the supply voltage. The MAX4073's wide 1.8MHz bandwidth makes it suitable for use inside battery-charger control loops.

The combination of three gain versions and a selectable external-sense resistor sets the full-scale current reading. The MAX4073 offers a high level of integration, resulting in a simple and compact current-sense solution.

The MAX4073 operates from a +3V to +28V single supply and draws only 0.5mA of supply current. This device is specified over the automotive operating temperature range (-40°C to +125°C) and is available in a space-saving 5-pin SC70 package (half the size of the SOT23).

For a similar device in a 6-pin SOT23 with a wider common-mode voltage range (0 to +28V), see the MAX4173 data sheet.
MAX4073F
Low-Cost, SC70, Voltage-Output, High-Side Current-Sense Amplifier
MAX4073F, MAX4073H, MAX4073T: Typical Operating Circuit
Add to myAnalog

Add product to the Products section of myAnalog (to receive notifications), to an existing project or to a new project.

Create New Project
Ask a Question

Documentation

Data Sheet 1

Reliability Data 1

Learn More
Add to myAnalog

Add media to the Resources section of myAnalog, to an existing project or to a new project.

Create New Project

Software Resources

Can't find the software or driver you need?

Request a Driver/Software

Evaluation Kits

MAX4073EVKIT

Evaluation Kit for the MAX4073

Buy Now View Details

Features and Benefits

  • High-Side Current Sensing
  • Multiple Fixed Gains Available
    • 20V/V (MAX4073T)
    • 50V/V (MAX4073F)
    • 100V/V (MAX4073H)
  • 3V to 28V Operating Supply (VCC)
  • 2V to 28V Common-Mode Range Independent of Supply Voltage
  • Lead(Pb)-Free and RoHS Compliant
  • Fully Assembled and Tested

Product Details

The MAX4073 evaluation kit (EV kit) is an assembled and tested PCB used to evaluate the MAX4073 high-side current-sense amplifier, which is designed for low-cost, compact, current-sense applications. The EV kit has a 2V to 28V input common-mode sense-voltage range that is independent of the supply voltage. The EV kit comes assembled with the MAX4073F IC (internal gain = 50V/V), but can also evaluate the MAX4073T/MAX4073H (internal gains of 20/100, respectively) ICs.
MAX4073EVKIT
Evaluation Kit for the MAX4073

Latest Discussions

No discussions on MAX4073F yet. Have something to say?

Start a Discussion on EngineerZone®

Recently Viewed