Analog Devices Inc./Maxim Integrated MAX6375UR26+T

Overview

MAX6375UR26+T from Maxim Integrated is an ultra-low-power, active-low voltage detector IC in SOT23-3 package, with factory-trimmed 2.63V threshold (±2.5% over temperature), 500nA supply current, and push-pull output. It monitors VCC supply voltage in portable battery-powered systems and asserts a logic-low signal when voltage drops below threshold - used for precision brownout detection and system reset initiation.

For engineers reviewing the MAX6375UR26+T datasheet, MAX6375UR26+T pinout, MAX6375UR26+T application, or MAX6375UR26+T equivalent, key selection criteria include its 2.63V trip point, 500nA quiescent current, -40°C to +85°C operating range, SOT23-3 footprint, and compatibility with low-voltage microcontroller reset inputs requiring active-low assertion.

Technical Context

The MAX6375UR26+T integrates a precision bandgap reference, comparator, and laser-trimmed resistive divider to deliver stable 2.63V threshold detection without external components. Its internal architecture ensures correct output state down to 1V VCC and rejects fast transients via built-in immunity circuitry.

This device belongs to the MAX6375–MAX6380 family of single-function voltage detectors differentiated by threshold voltage and output type. MAX6375UR26+T uses push-pull active-low output (OUT = low when VCC < VTH), unlike open-drain variants (MAX6377/MAX6380) or active-high versions (MAX6376/MAX6379).

Key Specifications

Pinout & Package

MAX6375UR26+T is housed in a lead-free 3-pin SOT23-3 package (JEDEC MO-178AA), measuring 2.9mm × 1.6mm × 1.1mm, with gull-wing leads and standard tape-and-reel packaging for automated assembly.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV803EC26DBZR and APX803S-26SA-7, MAX6375UR26+T delivers optimal balance of ultra-low 500nA current, ±2.5% threshold accuracy, and push-pull simplicity - making it preferred for space-constrained, battery-critical applications where every nanoamp and millivolt matters.

Availability

MAX6375UR26+T is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, wearable fitness trackers, and smart home battery backup systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant lead-free packaging.

Supply support for MAX6375UR26+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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.

The MAX6375–MAX6380 series was designed specifically for ultra-low-power voltage monitoring in battery-critical systems - delivering precision threshold detection, minimal current draw, and compact packaging without external components.

FAQ

What is the exact factory-trimmed threshold voltage of MAX6375UR26+T?

The MAX6375UR26+T has a nominal threshold voltage of 2.63V, with guaranteed accuracy of ±2.5% over the full -40°C to +85°C operating temperature range. This value is laser-trimmed at wafer test and confirmed per Table 1 in the datasheet, where suffix "R26" explicitly denotes the 2.63V variant.

Does MAX6375UR26+T require any external components to operate?

No, MAX6375UR26+T requires no external components. Its precision bandgap reference, comparator, and factory-trimmed resistive divider are fully integrated. Only VCC, GND, and the OUT signal connection are needed - eliminating external resistors, capacitors, or trimming networks.

What is the maximum VCC voltage that MAX6375UR26+T can monitor?

MAX6375UR26+T supports VCC monitoring from 1.2V up to 5.5V. The device remains functional and asserts correct output logic state across this entire range, including operation down to 1V for guaranteed reset behavior during deep brownout conditions.

Is MAX6375UR26+T pin-compatible with other devices in the MAX6375–MAX6380 family?

Yes, MAX6375UR26+T shares identical SOT23-3 pinout (GND, OUT, VCC) with all UR-suffix variants in the MAX6375–MAX6380 family, including MAX6376UR26+T and MAX6377UR26+T. However, output logic (active-low vs. active-high) and internal configuration differ - verify function before substitution.

What is the propagation delay specification for MAX6375UR26+T?

MAX6375UR26+T exhibits a typical propagation delay of 6.3µs for the falling edge (VCC dropping below VTH), measured under standard conditions (VOD = 100mV). This delay is guaranteed across temperature and ensures timely reset assertion before system instability occurs.