Analog Devices Inc./Maxim Integrated MAX6376XR23

Overview

MAX6376XR23 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 2.32V 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 low-power IoT sensors.

For engineers reviewing the MAX6376XR23 datasheet, MAX6376XR23 pinout, MAX6376XR23 application, or MAX6376XR23 equivalent, key selection criteria include its active-high push-pull output configuration, SC70-3 package footprint, 2.32V 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 MAX6376XR23 integrates a precision bandgap reference, comparator, and laser-trimmed resistive divider to deliver fixed 2.32V detection without external components. Its internal hysteresis of 100mV prevents chatter during slow VCC decay, and its propagation delay is 6.3µs (typ) for falling VCC transitions.

Designed for single-function voltage supervision, it ignores fast transients-supporting stable operation even with sub-200µs negative glitches at 100mV overdrive. The device operates across -40°C to +85°C and maintains output state integrity down to 1V VCC, ensuring robust behavior during brownout conditions.

Key Specifications

Pinout & Package

MAX6376XR23 is housed in a 3-pin SC70-3 package (2.0mm × 1.25mm × 0.95mm), optimized for space-constrained portable designs. The package is lead-free (RoHS-compliant) and supplied in tape-and-reel format.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV803EB23DBZR and TPS3801K23DBVR, the MAX6376XR23 uniquely combines SC70-3 size, 500nA ICC, and active-high push-pull output - enabling direct MCU interface and minimal board area in ultra-low-power portable designs.

Availability

MAX6376XR23 is available at Aetrix Electronics and suitable for portable medical sensors, wearable health monitors, and industrial wireless sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX6376XR23 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, and consumer applications.

The MAX6375–MAX6380 family was designed specifically for ultra-low-power voltage supervision in battery-critical systems, emphasizing nanoscale current consumption, factory-trimmed accuracy, and minimal external component count.

FAQ

What is the exact reset threshold voltage of MAX6376XR23 and how accurate is it over temperature?

The MAX6376XR23 has a factory-trimmed nominal reset threshold of 2.32V, with guaranteed accuracy of ±2.5% over the full operating temperature range of -40°C to +85°C. This specification is validated by design and confirmed in the Electrical Characteristics table of the official datasheet, where VTH min/max values are listed as 2.262V and 2.375V at temperature extremes.

Does MAX6376XR23 require any external components to function?

No, the MAX6376XR23 requires zero external components. Its precision bandgap reference, comparator, and laser-trimmed resistor network are fully integrated. Unlike adjustable supervisors, it needs no external resistors for threshold setting, and its active-high push-pull output eliminates the need for a pull-up resistor - simplifying layout and improving reliability in MAX6376XR23-based designs.

What package type and dimensions does MAX6376XR23 use?

The MAX6376XR23 is packaged in a 3-pin SC70-3 (also called SOT-323) case measuring 2.0mm × 1.25mm × 0.95mm. It shares pinout compatibility with the SOT23-3 variant but offers a smaller footprint. The device is supplied in tape-and-reel format and is available in both leaded and lead-free versions (designated by "-T" or "+T" suffix).

How does MAX6376XR23 behave during fast VCC transients?

The MAX6376XR23 is designed to ignore fast negative-going VCC transients: it suppresses output assertion for glitches ≤200µs duration when the overdrive (VTH – VCC) is 100mV. This immunity is characterized in the Typical Operating Characteristics graph "Maximum Transient Duration vs. Threshold Overdrive", ensuring robust operation in electrically noisy environments without false resets.

Can MAX6376XR23 operate reliably at very low supply voltages?

Yes, the MAX6376XR23 guarantees correct output logic state down to VCC = 1V - well below its 2.32V trip threshold. This allows it to remain functional and assert the active-high output even during deep brownout conditions, providing early warning before complete system collapse. Its internal circuitry remains stable and specified across the full 1.2V–5.5V operating range.