Analog Devices Inc./Maxim Integrated MAX6462UR26+T

Overview

MAX6462UR26+T from Maxim Integrated is a voltage detector IC with active-high push-pull output, 2.6V lower trip threshold (VTH−), ±2.5% threshold accuracy over −40°C to +125°C, 17µs propagation delay, and 1.0µA supply current at 3.6V - used for precision power-supply monitoring in portable medical devices and battery-powered equipment.

For engineers reviewing the MAX6462UR26+T datasheet, MAX6462UR26+T pinout, MAX6462UR26+T application, or MAX6462UR26+T equivalent, key selection criteria include trip threshold tolerance, ultra-low quiescent current, guaranteed hysteresis (5%), SOT23-3 package compatibility, and immunity to sub-20µs VCC transients.

Technical Context

The MAX6462UR26+T implements a precision bandgap reference and comparator with internally trimmed resistor networks to set VTH− = 2.600V (typ) and VTH+ = 2.730V (typ), enabling reliable reset assertion during brownout conditions. Its internal 5% hysteresis prevents output chatter near threshold.

As a member of the MAX6461–MAX6466 family, it operates across 1.2V to 6.0V supply range and delivers stable performance without external components. It belongs to the voltage detector subgroup (not µP supervisory), so it lacks built-in reset timeout - output deasserts immediately when VCC exceeds VTH+.

Key Specifications

Pinout & Package

SOT23-3 package: 3-pin surface-mount, lead-free (RoHS-compliant), moisture sensitivity level 1, rated for −40°C to +125°C operation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV803EB26DBZR and APX803S-26SA-7, the MAX6462UR26+T uniquely combines ±2.5% full-temperature accuracy, guaranteed 5% hysteresis, and 125°C operation in a no-component-required SOT23-3 package - making it optimal for ruggedized portable and industrial designs requiring zero-calibration reliability.

Availability

MAX6462UR26+T is available at Aetrix Electronics and suitable for battery voltage monitoring, power-supply brownout detection, and noise-immune microcontroller reset applications requiring stable component supply across automotive, industrial, and medical product lifecycles.

Supply support for MAX6462UR26+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 precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.

The MAX6461–MAX6466 family was designed specifically for ultra-low-power voltage monitoring in space- and energy-constrained systems - delivering factory-trimmed thresholds, integrated hysteresis, and sub-2µA operation without external components.

FAQ

What is the exact voltage threshold of MAX6462UR26+T?

The MAX6462UR26+T has a nominal lower trip threshold (VTH−) of 2.600V at +25°C, with guaranteed limits of 2.535V (min) to 2.665V (max) across −40°C to +125°C per Table 1a. Its upper threshold (VTH+) is 2.730V (typ), calculated as VTH− × 1.05, providing 5% hysteresis. These values are factory-trimmed and do not require external calibration.

Does MAX6462UR26+T provide a reset timeout period?

No, the MAX6462UR26+T does not include a reset timeout period. It is a voltage detector (not a µP supervisory circuit), so its output deasserts immediately when VCC rises above VTH+. In contrast, MAX6464–MAX6466 variants offer a minimum 150ms timeout. For timeout functionality, consider MAX6465UR26+T - same threshold and package, but with built-in reset delay.

What is the output configuration of MAX6462UR26+T?

The MAX6462UR26+T features an active-high push-pull output. When VCC falls below VTH− (2.6V), OUT goes high; when VCC rises above VTH+ (2.73V), OUT returns low. It drives logic-high directly without external pull-up resistors and can sink up to 9mA at VCC ≥ 4.5V, supporting direct interface with most MCU GPIOs.

Can MAX6462UR26+T operate down to 1.2V supply?

Yes, the MAX6462UR26+T is fully specified to operate from VCC = 1.2V to 6.0V across −40°C to +125°C. At 1.2V, it maintains functional detection with 1.0µA supply current and retains ±2.5% threshold accuracy. However, output drive strength (VOL/VOH) is reduced below 1.8V - verify logic compatibility in low-VCC edge cases.

Is MAX6462UR26+T pin-compatible with other MAX646x variants in SOT23-3?

Yes, all MAX6461–MAX6466 devices in SOT23-3 (e.g., MAX6461UR26+T, MAX6463UR26+T) share identical pinout: Pin 1 = OUT, Pin 2 = GND, Pin 3 = VCC. However, output logic polarity and presence of timeout differ - MAX6462UR26+T is active-high push-pull, while MAX6463UR26+T is active-low open-drain. Swapping requires firmware or schematic review.