Analog Devices Inc./Maxim Integrated MAX6462UR17+T

Overview

MAX6462UR17+T from Maxim Integrated is a precision ultra-low-power voltage detector IC designed for battery and power-supply monitoring in space-constrained portable systems. It features a 1.700V nominal trip threshold (VTH−), 17µs propagation delay, ±2.5% threshold accuracy over −40°C to +125°C, and 1.0µA supply current at 3.6V - enabling reliable reset supervision in Li⁺-powered medical devices and wearables.

For engineers reviewing the MAX6462UR17+T datasheet, MAX6462UR17+T pinout, MAX6462UR17+T application, or MAX6462UR17+T equivalent, key selection criteria include its SOT23-3 package, active-high push-pull output, 5% internal hysteresis, and immunity to sub-20µs VCC transients - critical for stable operation in low-voltage, intermittent-power environments.

Technical Context

The MAX6462UR17+T implements a precision bandgap reference and comparator with factory-trimmed resistor networks to set its 1.700V lower trip threshold (VTH−) and 1.785V upper threshold (VTH+ = VTH− × 1.05). Its internal 5% hysteresis prevents output chatter during slow-rising or noisy supply conditions.

This device belongs to the MAX6461–MAX6466 family of voltage detectors (not µP supervisors), so it lacks a reset timeout period and asserts output immediately upon threshold violation. Its active-high push-pull output drives logic directly without external pull-up, supporting interface with 1.8V/3.3V/5V digital systems.

Key Specifications

Pinout & Package

SOT23-3 package: 1.45mm × 1.45mm × 1.1mm body, 0.95mm pitch, lead-free (RoHS-compliant) +T variant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV803EB17DBZR and APX803S-17SA-7, the MAX6462UR17+T uniquely combines 1.0µA supply current, active-high push-pull output, and guaranteed 17µs propagation delay - enabling direct connection to modern low-voltage MCUs without additional passives or logic inversion.

Availability

MAX6462UR17+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered instrumentation, and industrial sensor nodes requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX6462UR17+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, medical, and communications applications.

The MAX6461–MAX6466 family was engineered for ultra-low-power voltage monitoring in battery-critical systems - delivering precision threshold detection with minimal silicon area and zero external components.

FAQ

What is the exact threshold voltage of MAX6462UR17+T and how is it specified?

The MAX6462UR17+T has a nominal lower trip threshold (VTH−) of 1.700V at +25°C, with guaranteed limits of 1.658V (min) to 1.743V (max) across −40°C to +125°C. Its upper threshold (VTH+) is 1.785V (1.700V × 1.05), providing 5% hysteresis. These values are factory-trimmed and documented in Table 1a of the MAX6461–MAX6466 datasheet.

Does MAX6462UR17+T provide a reset timeout period like some supervisory ICs?

No, the MAX6462UR17+T is a voltage detector (not a µP supervisor), so it does not include a reset timeout period. Output assertion is immediate upon VCC falling below VTH− and clears immediately when VCC rises above VTH+. For timed reset functionality, consider the MAX6465UR17+T (150ms minimum timeout) from the same family.

What is the output configuration of MAX6462UR17+T and how does it interface with a microcontroller?

The MAX6462UR17+T features an active-high push-pull output in SOT23-3 package. When VCC ≥ VTH+, OUT drives high (VOH ≥ 0.8×VCC); when VCC < VTH−, OUT drives low (VOL ≤ 0.4V). This allows direct connection to GPIO or reset pins of MCUs such as STM32L4 or nRF52840 without external pull-up resistors or level shifters.

Can MAX6462UR17+T operate down to 1.2V supply, and what happens to its performance below 1.6V?

Yes, the MAX6462UR17+T operates from 1.2V to 6.0V per Absolute Maximum Ratings and Electrical Characteristics tables. However, its 1.700V threshold means it will assert output (go low) whenever VCC drops below ~1.658V. Below 1.2V, operation is not guaranteed - and below 1.0V, output sinking capability degrades, potentially causing floating states on high-impedance inputs.

How does MAX6462UR17+T handle short voltage transients on the VCC line?

The MAX6462UR17+T is immune to VCC transients ≤20µs in duration when the overdrive (VTH− − VCC) is ≥100mV, as shown in Figure 4 of the datasheet. This makes it robust against switching regulator noise, ESD-induced dips, and cable-connection glitches - ensuring no false resets occur during normal system operation.