Analog Devices Inc./Maxim Integrated MAX6376UR22

Overview

MAX6376UR22 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 the threshold, supporting reliable power-fail detection in portable medical devices and IoT sensors.

For engineers reviewing the MAX6376UR22 datasheet, MAX6376UR22 pinout, MAX6376UR22 application, or MAX6376UR22 equivalent, key selection criteria include its active-high push-pull output configuration, 2.20V trip point, SC70/SOT23-3 package compatibility, transient immunity up to 200µs at 100mV overdrive, and guaranteed output state retention down to 1V supply.

Technical Context

The MAX6376UR22 implements a precision bandgap reference and comparator with internally trimmed resistors to set its 2.20V threshold without external components. Its active-high push-pull output drives high during undervoltage conditions and remains functional down to 1V VCC, enabling brownout detection in deep-sleep microcontroller systems.

It delivers 500nA quiescent current and ±2.5% threshold accuracy across –40°C to +85°C, with propagation delay under 20µs and built-in immunity to fast VCC transients-ignoring negative glitches ≤200µs at 100mV overdrive per typical characterization data.

Key Specifications

Pinout & Package

MAX6376UR22 is packaged in a 3-pin SOT23-3 (also available in SC70-3), with pin 1 = GND, pin 2 = OUT, pin 3 = VCC. The SOT23-3 footprint enables high-density PCB layouts while maintaining compatibility with standard pick-and-place equipment.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV803EB22DBZR and TPS3801K22DBVR, the MAX6376UR22 uniquely balances ultra-low 500nA current, active-high push-pull drive, and industrial-grade ±2.5% threshold tolerance in a cost-optimized SOT23-3 package-making it optimal for space-constrained, long-life battery systems where external components must be minimized.

Availability

MAX6376UR22 is available at Aetrix Electronics and suitable for battery-powered medical sensors, industrial PLC I/O modules, wireless sensor nodes, and automotive BCM subsystems requiring stable component supply and long-term lifecycle support.

Supply support for MAX6376UR22 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 in industrial, medical, and communications markets.

The MAX6375–MAX6380 family was engineered specifically for ultra-low-power supply monitoring in portable and energy-harvesting systems, delivering factory-trimmed thresholds and sub-µA operation without external components.

FAQ

What is the exact threshold voltage and tolerance of the MAX6376UR22?

The MAX6376UR22 has a factory-trimmed nominal threshold voltage of 2.20V with ±2.5% accuracy over the full –40°C to +85°C operating temperature range. At +25°C, the typical threshold is 2.200V, with min/max values of 2.167V and 2.233V respectively. This specification is guaranteed by design and confirmed in the device's Electrical Characteristics table.

Does the MAX6376UR22 require any external components to operate?

No, the MAX6376UR22 requires no external components. Its precision bandgap reference, comparator, and threshold-setting resistors are fully integrated and factory-trimmed. The active-high push-pull output eliminates the need for an external pull-up resistor, making the MAX6376UR22 a true single-component solution for supply monitoring.

What is the minimum VCC voltage at which the MAX6376UR22 guarantees correct output logic state?

The MAX6376UR22 guarantees correct output logic state-i.e., active-high assertion when VCC < 2.20V and deassertion when VCC > 2.20V-down to 1V VCC. This is explicitly stated in the General Description and verified across –40°C to +85°C, enabling reliable operation during deep brownout conditions.

How does the MAX6376UR22 handle fast transients on the VCC line?

The MAX6376UR22 is designed to ignore fast negative-going VCC transients. Per Typical Operating Characteristics, it rejects glitches up to 200µs wide when the overdrive (VTH – VCC) is 100mV. This transient immunity prevents false resets caused by switching noise or load dump events, ensuring robust operation in electrically noisy environments.

Which package variants are offered for the MAX6376UR22, and what are their markings?

The MAX6376UR22 is offered in both 3-pin SOT23-3 (top mark FZHH) and 3-pin SC70-3 (top mark ADL) packages. Both versions share identical electrical specifications and operate over –40°C to +85°C. Tape-and-reel packaging is standard; lead-free versions use "+T" suffix instead of "-T".