Analog Devices Inc./Maxim Integrated MAX6717AUKSVD3+T

Overview

The MAX6717AUKSVD3+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in SOT23-6 package, monitoring VCC1 (1.8V–5.0V) and VCC2 (0.9V–3.3V) with factory-trimmed reset thresholds, 140ms minimum reset timeout, open-drain active-low RST output, and manual-reset input - deployed in telecom power systems to ensure reliable cold-start and brownout recovery.

For engineers reviewing the MAX6717AUKSVD3+T datasheet, MAX6717AUKSVD3+T pinout, MAX6717AUKSVD3+T application, or MAX6717AUKSVD3+T equivalent, key selection criteria include dual-rail voltage monitoring range, guaranteed reset validity down to 0.8V on either supply, 140ms timeout precision, low 14µA typical supply current at 3.6V, and SOT23-6 footprint compatibility with industrial temperature operation (-40°C to +125°C).

Technical Context

This device implements independent dual-voltage comparators with hysteresis (0.5% of threshold), internal 140ms reset timeout timer, and logic-controlled reset assertion via VCC1/VCC2 undervoltage, MR pull-down, or watchdog timeout. It guarantees correct reset state when either VCC1 or VCC2 ≥ 0.8V, enabling robust operation during deep brownouts.

The MAX6717AUKSVD3+T features open-drain RST output referenced to VCC1, internal 50kΩ MR pullup, and immunity to sub-20µs VCC transients - all within a 6-pin SOT23 package optimized for space-constrained multivoltage embedded systems requiring AEC-Q100-grade reliability.

Key Specifications

Pinout & Package

SOT23-6 package (Package Code U6+1), 1.6mm × 2.9mm footprint, 0.95mm height, thermal resistance θJA = 115°C/W (multilayer board).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-supply supervisory applications.

Compared with MAX6715AUKSVD3+T, the MAX6717AUKSVD3+T offers identical electrical performance and pinout but reflects a later production revision with enhanced ESD robustness; versus TPS3808G33DBVR, it provides integrated dual-rail supervision and manual reset - eliminating design complexity and component count in multivoltage systems.

Availability

MAX6717AUKSVD3+T is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, automotive ADAS modules, and portable medical equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MAX6717AUKSVD3+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) designs high-performance analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.

The MAX6715A–MAX6729A family delivers ultra-low-voltage dual/triple-supply supervision with factory-trimmed thresholds and precise timeout periods - engineered specifically for reliability-critical embedded systems where power integrity directly impacts functional safety.

FAQ

What is the reset timeout period of the MAX6717AUKSVD3+T?

The MAX6717AUKSVD3+T has a guaranteed minimum reset timeout period of 140ms, with typical value 210ms and maximum 280ms. This fixed timeout is factory-programmed and ensures sufficient hold time for microprocessor initialization after power recovery or manual reset. The timeout begins when VCC1 and VCC2 rise above their respective thresholds and ends with deassertion of the open-drain RST output.

Does the MAX6717AUKSVD3+T support manual reset functionality?

Yes, the MAX6717AUKSVD3+T includes an active-low manual-reset input (MR) on pin 3, featuring an internal 50kΩ pullup resistor to VCC1. Pulling MR low forces immediate reset assertion, which remains active for the full 140ms timeout period after MR returns high. This enables front-panel reset buttons or test-mode reset control without external components.

What are the voltage threshold settings for VCC1 and VCC2 on the MAX6717AUKSVD3+T?

The MAX6717AUKSVD3+T uses suffix 'D3' to indicate factory-trimmed reset thresholds of 2.850V (typ) for both VCC1 and VCC2, with ±1.5% tolerance over temperature. These values correspond to the 'S' threshold option in Maxim's Reset Voltage Threshold Suffix Guide and are optimized for supervision of standard 3.0V and 3.3V rails.

Can the MAX6717AUKSVD3+T operate reliably during deep brownout conditions?

Yes, the MAX6717AUKSVD3+T guarantees correct reset output logic state when either VCC1 or VCC2 remains ≥ 0.8V - enabling deterministic behavior during severe brownouts where one supply collapses while the other sustains minimal operation. This feature ensures fail-safe reset assertion even when system input drops below nominal levels.

Is the MAX6717AUKSVD3+T pin-compatible with other devices in the MAX6715A–MAX6729A family?

The MAX6717AUKSVD3+T uses the SOT23-6 package and shares identical pinout with MAX6715AUKSVD3+T, MAX6719AUKSVD3+T, and MAX6721AUKSVD3+T. However, pin 6 (RST2) is NC on MAX6717A - unlike variants such as MAX6728A that implement dual RST outputs. Always verify RST2 functionality in target schematic before substitution.