Analog Devices Inc./Maxim Integrated MAX6376XR22-T

Overview

MAX6376XR22-T from Maxim Integrated is an ultra-low-power, active-high push-pull voltage detector designed for precision supply monitoring in battery-powered systems. It features a factory-trimmed 2.20V threshold (±2.5% over temperature), 500nA supply current, and guaranteed operation down to 1V VCC. It asserts a logic-high output when VCC falls below threshold, enabling reliable reset or power-fail signaling in portable medical devices and wearables.

For engineers reviewing the MAX6376XR22-T datasheet, MAX6376XR22-T pinout, MAX6376XR22-T application, or MAX6376XR22-T equivalent, key selection criteria include its active-high push-pull output configuration, SC70-3 package footprint, 2.20V trip point with ±2.5% accuracy, transient immunity up to 200µs at 100mV overdrive, and compatibility with 1.2V–5.5V supply rails.

Technical Context

The MAX6376XR22-T implements a precision bandgap reference and comparator with internally trimmed resistors to set its 2.20V detection threshold. Its active-high push-pull output drives high (VOH ≥ 0.8×VCC) when VCC drops below VTH and low (VOL ≤ 0.4V at 1.2mA sink) otherwise, eliminating external pull-up components.

It is immune to fast negative-going VCC transients-capable of rejecting glitches up to 200µs wide at 100mV overdrive-and operates across -40°C to +85°C with a 40ppm/°C threshold tempco. All functionality is self-contained; no external capacitors or resistors are required for basic reset generation.

Key Specifications

Pinout & Package

MAX6376XR22-T is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.95mm), optimized for space-constrained portable designs. The package is lead-free and RoHS-compliant, supplied in tape-and-reel format.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage detector applications.

Compared with TLV803EB22DBZR and APX803S-22SA-7, the MAX6376XR22-T uniquely combines 500nA current, active-high push-pull output, and SC70-3 size - making it optimal for ultra-small, long-life battery systems where board space and reset interface simplicity are primary constraints.

Availability

MAX6376XR22-T is available at Aetrix Electronics and suitable for portable medical sensors, wearable health monitors, and industrial IoT edge nodes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MAX6376XR22-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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, automotive, communications, and consumer applications.

The MAX6375–MAX6380 family was designed specifically for ultra-low-power supply monitoring in battery-critical systems, delivering precision voltage detection with minimal footprint and zero external components.

FAQ

What is the exact reset threshold voltage of the MAX6376XR22-T?

The MAX6376XR22-T has a factory-trimmed nominal reset threshold of 2.20V, with guaranteed accuracy of ±2.5% over the full operating temperature range (-40°C to +85°C). This value is confirmed in Table 1 of the datasheet and applies specifically to the R22 suffix variant of the MAX6376 series. The MAX6376XR22-T does not require external calibration to achieve this specification.

Does the MAX6376XR22-T require any external components to function?

No, the MAX6376XR22-T requires no external components. Its precision bandgap reference, comparator, and threshold-setting resistors are fully integrated and factory-trimmed. Unlike many voltage detectors, it operates correctly with only VCC, GND, and OUT connections - eliminating the need for pull-up resistors, capacitors, or trimming networks in standard applications.

What is the output configuration of the MAX6376XR22-T, and how does it differ from other MAX6375–MAX6380 variants?

The MAX6376XR22-T features an active-high push-pull output, meaning OUT goes logic high when VCC falls below 2.20V and logic low otherwise. This distinguishes it from MAX6375/MAX6377 (active-low push-pull/open-drain) and MAX6378/MAX6380 (higher-threshold variants). The push-pull structure allows direct interfacing with active-high reset inputs without external pull-up components.

What package type is used for the MAX6376XR22-T, and what are its key mechanical dimensions?

The MAX6376XR22-T is supplied in a 3-pin SC70-3 package measuring 2.0mm × 2.1mm × 0.95mm (L × W × H). Its pinout is GND (pin 1), OUT (pin 2), and VCC (pin 3), matching the top-view diagram in the datasheet. This compact outline provides significant space savings over SOT23-3 while maintaining compatibility with standard pick-and-place equipment.

How does the MAX6376XR22-T handle power supply transients, and what is its maximum tolerable glitch duration?

The MAX6376XR22-T is designed to ignore fast negative-going VCC transients. According to the Typical Operating Characteristics graph (MAX6375-04), it rejects glitches up to 200µs wide when the overdrive (VTH – VCC) is 100mV. As overdrive increases, the maximum allowable pulse width decreases - ensuring robust operation in electrically noisy environments without false triggering.