Analog Devices Inc./Maxim Integrated MAX4211FEUE-T

Overview

MAX4211FEUE-T from Maxim Integrated is a full-featured high-side current and power monitor IC with integrated 1.21V bandgap reference, two open-drain comparators, and selectable 40.96V/V current-sense gain. It delivers real-time analog outputs for load current (IOUT) and power (POUT), supports 4V–28V input source voltage, operates from +2.7V to +5.5V supply, and achieves ±1.5% max current-sense accuracy. It is used in smart battery chargers and overpower circuit-breaker protection systems.

For engineers reviewing the MAX4211FEUE-T datasheet, MAX4211FEUE-T pinout, MAX4211FEUE-T application, or MAX4211FEUE-T equivalent, this page provides verified package mapping (16-pin TSSOP), confirmed pin functions, exact gain configuration (F = 40.96V/V), comparator thresholds, reference output stability, and validated alternative parts for overcurrent/overpower detection designs.

Technical Context

The MAX4211FEUE-T implements a precision analog multiplier architecture that multiplies sensed current (via VSENSE across external shunt) with measured supply voltage (VRS+) to generate POUT = G × VSENSE × VRS+, where G = 40.96 V/V for the 'F' variant. Its dual comparators monitor POUT or IOUT against user-defined thresholds using the internal 1.21V reference.

It features rail-to-rail output capability (VOUT_MIN = 1.5mV at 10µA sink), 220kHz bandwidth on both IOUT and POUT, and open-drain comparator outputs rated to 28V - enabling direct interface with high-side MOSFET gate drivers in circuit-breaker applications without level-shifting.

Key Specifications

Pinout & Package

MAX4211FEUE-T is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed thermal pad. Pin 1 marked by dot; pin numbering follows standard TSSOP convention (counterclockwise from dot).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-side power monitoring applications.

Compared with MAX4211FEUE-T, the MAX4211AEUE-T and MAX4211BEUE-T retain identical comparator architecture, 1.21V reference, and TSSOP-16 packaging but offer lower current-sense gains - making them suitable for higher-current applications where the 40.96V/V gain of the 'F' variant would saturate prematurely or amplify noise excessively.

Availability

MAX4211FEUE-T is available at Aetrix Electronics and suitable for smart battery chargers, overpower circuit breakers, and power-supply displays requiring stable component supply, long-term lifecycle support, and guaranteed traceability.

Supply support for MAX4211FEUE-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for power management, sensing, and interface applications - with emphasis on high-reliability, low-power, and space-constrained systems.

The MAX4211 product line delivers integrated high-side current and power monitoring solutions targeting battery-powered equipment, industrial controls, and power delivery systems where ground-path integrity and real-time analog feedback are critical.

FAQ

What is the current-sense gain configuration of the MAX4211FEUE-T?

The MAX4211FEUE-T is the 'F' variant of the MAX4211 family and features a fixed current-sense amplifier gain of 40.96 V/V. This gain is laser-trimmed at wafer test and applies to the IOUT output (IOUT = 40.96 × VSENSE). It is optimized for high-resolution current measurement with low-value shunt resistors, such as those used in compact battery-pack monitoring. The gain is guaranteed over the full –40°C to +85°C operating range.

Does the MAX4211FEUE-T include an internal voltage reference?

Yes, the MAX4211FEUE-T integrates a precision 1.21V bandgap reference accessible at the REF pin. This reference is buffered, temperature-compensated, and specified to ±10mV over –40°C to +85°C. It serves as the threshold reference for both comparators and can also be used externally for ADC reference or ratiometric scaling - eliminating the need for an external reference in most high-side monitoring designs.

Can the MAX4211FEUE-T drive a high-side MOSFET gate directly?

Yes - the MAX4211FEUE-T's open-drain comparator outputs (COUT1 and COUT2) are rated to 28V and can directly drive the gate of high-side N-channel MOSFETs when pulled up to the appropriate gate drive voltage (e.g., 12V or 24V). No level shifter is required. The comparators feature fast propagation delay (<4µs), latch enable (LE), and inhibit control - making the MAX4211FEUE-T ideal for autonomous, hardware-based circuit-breaker implementations.

What is the maximum common-mode voltage supported on the RS+ pin of the MAX4211FEUE-T?

The RS+ pin of the MAX4211FEUE-T supports a common-mode input voltage range of +4V to +28V. This allows direct high-side sensing on 12V and 24V industrial, automotive, and telecom power rails without external level-shifting circuitry. The device maintains ±1.5% power-sense accuracy across this full range when used with the specified external sense resistor and proper layout practices.

How does the MAX4211FEUE-T differ from the MAX4210 series?

The MAX4211FEUE-T is a full-featured variant with integrated 1.21V reference, two open-drain comparators, and 16-pin TSSOP packaging - unlike the simpler 6-pin or 8-pin MAX4210 series. It supports real-time analog power output (POUT), latchable fault reporting, and higher integration for autonomous protection. The MAX4210 lacks comparators and reference, offering only IOUT output in smaller packages - making the MAX4211FEUE-T the preferred choice for safety-critical, self-contained monitoring applications.