General Description

The MAX4210/MAX4211 low-cost, low-power, high-side power/current monitors provide an analog output voltage proportional to the power consumed by a load by multiplying load current and source voltage. The MAX4210/MAX4211 measure load current by using a high-side current-sense amplifier, making them especially useful in battery-powered systems by not interfering with the ground path of the load.

Features

♦ Real-Time Current and Power Monitoring

♦ ±1.5 (max) Current-Sense Accuracy

♦ ±1.5 (max) Power-Sense Accuracy

♦ Two Uncommitted Comparators (MAX4211)

♦ 1.21V Reference Output (MAX4211)

♦ Three Current/Power Gain Options

♦ 100mV/150mV Current-Sense Full-Scale Voltage

♦ +4V to +28V Input Source Voltage Range

♦ +2.7V to +5.5V Power-Supply Voltage Range

♦ Low Supply Current: 380µA (MAX4210)

♦ 220kHz Bandwidth

♦ Small 6-Pin TDFN and 8-Pin µMAX Packages (MAX4210)

Applications

    Overpower Circuit Breakers

    Smart Battery Packs/Chargers

    Smart Peripheral Control

    Short-Circuit Protection

    Power-Supply Displays

    Measurement Instrumentation

    Baseband Analog Multipliers

    VGA Circuits

    Power-Level Detectors