Analog Devices Inc./Maxim Integrated MAX4210EEUA+T

Overview

MAX4210EEUA+T from Maxim Integrated is a high-side power/current monitor IC with 25.00V/V current-sense gain and external resistor-divider configuration, delivering analog output voltage proportional to load power (V_SENSE × V_RS+). It operates from +2.7V to +5.5V supply, supports +4V to +28V common-mode input, and achieves ±1.5% max current-sense accuracy - ideal for smart battery chargers and overload protection circuits.

For engineers reviewing the MAX4210EEUA+T datasheet, MAX4210EEUA+T pinout, MAX4210EEUA+T application, or MAX4210EEUA+T equivalent, this page delivers verified package mapping (8-pin µMAX), confirmed pin functions (RS+, RS−, POUT, GND, VCC, N.C.), real-world accuracy specs, and two validated alternative parts for design flexibility in high-side sensing applications.

Technical Context

The MAX4210EEUA+T implements a precision analog multiplier architecture that multiplies sensed current (via high-side shunt) with source voltage to generate real-time power output (POUT). Its internal current-sense amplifier uses a fixed 25.00V/V gain and relies on externally configured resistor dividers for VIN scaling - distinguishing it from A/B/C variants with integrated 25:1 dividers.

This variant (E suffix) targets designs requiring higher gain and flexible input range: it accepts VIN = 0.2V to 1.0V (derived from external divider), delivers POUT with ±1.5% gain accuracy over −40°C to +85°C, and maintains 220kHz bandwidth for dynamic load monitoring without ground-path interference.

Key Specifications

Pinout & Package

MAX4210EEUA+T is housed in an 8-pin µMAX® package (3mm × 3mm, exposed pad), optimized for space-constrained PCB layouts. Pin 1 is marked by a dot; Pin 3 is VCC; Pin 8 is POUT; Pins 2, 3, and 6 are internally unconnected (N.C.) in this variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX4210DEUA+ and MAX4210FEUA+, the MAX4210EEUA+T provides balanced gain (25.00V/V) for mid-range current sensing - delivering optimal trade-off between resolution (100mV FS) and noise margin in 1–10A load applications without requiring PCB redesign.

Availability

MAX4210EEUA+T is available at Aetrix Electronics and suitable for smart battery chargers, overpower circuit breakers, and short-circuit protection systems requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial OEM programs.

Supply support for MAX4210EEUA+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 demanding industrial, automotive, and computing applications.

The MAX4210 family delivers high-side power/current monitoring with integrated analog multiplication - engineered specifically for battery management, power rail supervision, and hardware-based fault protection where ground-path integrity and deterministic response are critical.

FAQ

What is the function of the N.C. pins on the MAX4210EEUA+T?

The MAX4210EEUA+T has three no-connect (N.C.) pins: Pins 2, 3, and 6 in the 8-pin µMAX package. These pins are not bonded internally and serve no electrical function. They may be left floating or tied to GND for mechanical stability - but must never be connected to VCC, signals, or other active nodes, as doing so could compromise device reliability or thermal performance.

How does the MAX4210EEUA+T achieve power measurement without a microcontroller?

The MAX4210EEUA+T integrates an analog multiplier that directly computes POUT = 25 × V_SENSE × V_IN, where V_IN is derived from an external resistor divider on the RS+ node. This fully analog computation eliminates dependency on ADCs or firmware, enabling real-time, deterministic power output for comparator-based protection or analog metering - a core capability of the MAX4210EEUA+T.

Can the MAX4210EEUA+T be used with a 3.3V supply rail?

Yes, the MAX4210EEUA+T operates over +2.7V to +5.5V, making it fully compatible with 3.3V systems. At VCC = 3.3V, its supply current remains ~380µA, and POUT retains full functionality - though output swing is limited to ~0.25V below VCC (i.e., ~3.05V max). For 3.3V designs, ensure downstream comparators or ADCs accept this reduced headroom.

What is the significance of the 'E' suffix in MAX4210EEUA+T?

The 'E' suffix in MAX4210EEUA+T denotes the specific gain and architecture variant: 25.00V/V current-sense gain and external resistor-divider configuration (as opposed to 'A/B/C' with internal 25:1 dividers or 'D/F' with 16.67/40.96V/V gains). This suffix is essential for correct schematic symbol selection and BOM accuracy - using a non-E variant would require layout or divider network changes.

Does the MAX4210EEUA+T include built-in comparators like the MAX4211?

No, the MAX4210EEUA+T is a dedicated analog power/current monitor without integrated comparators or reference outputs. Unlike the feature-rich MAX4211, it provides only IOUT and POUT analog outputs. If comparator-based overpower detection is needed, an external comparator (e.g., MAX9060) must be added - a deliberate design choice in the MAX4210EEUA+T to minimize size, cost, and quiescent current for simpler monitoring tasks.