Analog Devices Inc./Maxim Integrated MAX6717AUKRVD3+T

Overview

MAX6717AUKRVD3+T from Maxim Integrated is a dual-supply ultra-low-voltage microprocessor supervisory circuit in 6-pin SOT23 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. It ensures reliable system reset during power-up, brownout, or fault conditions in battery-powered telecom and industrial controllers.

For engineers reviewing the MAX6717AUKRVD3+T datasheet, MAX6717AUKRVD3+T pinout, MAX6717AUKRVD3+T application, or MAX6717AUKRVD3+T equivalent, key selection criteria include dual-rail voltage monitoring capability, guaranteed reset validity down to VCC = 0.8V, 140ms reset timeout period, open-drain RST output logic, and compatibility with manual-reset and watchdog-free designs.

Technical Context

The MAX6717AUKRVD3+T implements independent voltage comparators for VCC1 and VCC2, each with factory-trimmed thresholds and 0.5% hysteresis, asserting reset when either supply falls below its threshold. Its internal reset timer guarantees ≥140ms assertion after all supplies recover, with immunity to sub-20µs VCC transients.

This variant lacks RSTIN, WDI, PFI, and PFO pins-confirmed by pin mapping-and supports only dual-supply monitoring with MR input and single open-drain RST output referenced to VCC1. It operates across –40°C to +125°C and draws 10µA typical supply current at 3.6V.

Key Specifications

Pinout & Package

MAX6717AUKRVD3+T is housed in a RoHS-compliant 6-pin SOT23 package (package code U6+1), with 0.95mm pitch, 2.9mm × 1.6mm footprint, and thermal resistance θJA = 115°C/W on multilayer board.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6717AUKRVD3+T, MAX6715AUKRVD3+T provides higher VCC1 threshold but omits VCC2 supervision entirely, while TLV803EB26DBZR reduces size and current but sacrifices dual-rail capability, manual reset, and automotive-grade temperature support-making MAX6717AUKRVD3+T the only option meeting full dual-supply, MR-enabled, AEC-Q100-aligned requirements.

Availability

MAX6717AUKRVD3+T is available at Aetrix Electronics and suitable for telecom line cards, industrial PLC controllers, and portable medical monitors requiring stable component supply, long-term lifecycle assurance, and automotive-grade temperature performance.

Supply support for MAX6717AUKRVD3+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 precision analog and mixed-signal ICs for demanding industrial, automotive, and communications applications, emphasizing reliability, low power, and high integration.

The MAX6715A–MAX6729A family delivers compact, ultra-low-voltage supervisory circuits optimized for multirail embedded systems where simultaneous power-rail monitoring and deterministic reset timing are critical to functional safety.

FAQ

What is the reset timeout period of the MAX6717AUKRVD3+T?

The MAX6717AUKRVD3+T features a fixed minimum reset timeout period of 140ms, as indicated by the 'D3' suffix in its part number. This duration is guaranteed over the full –40°C to +125°C operating temperature range and ensures sufficient reset assertion time for microprocessor and peripheral initialization. The timeout begins when all monitored supplies rise above their thresholds and ends with deassertion of the open-drain RST output.

Does the MAX6717AUKRVD3+T support triple-voltage monitoring via RSTIN?

No, the MAX6717AUKRVD3+T does not support RSTIN functionality. Per the official Maxim Integrated pin mapping and selector guide, MAX6717A variants are configured exclusively for dual-supply monitoring (VCC1 and VCC2) and lack the RSTIN, WDI, PFI, and PFO pins. Triple-monitoring capability is reserved for MAX6719A/MAX6720A and higher variants in the same family.

What are the factory-trimmed reset thresholds for VCC1 and VCC2 on the MAX6717AUKRVD3+T?

The MAX6717AUKRVD3+T uses the 'R' suffix for VCC1 (2.550V–2.700V, nominal 2.625V) and 'F' suffix for VCC2 (1.020V–1.080V, nominal 1.050V). These thresholds are laser-trimmed at wafer test and guaranteed over temperature, eliminating need for external resistor networks. The VCC1 threshold applies to primary rails like 2.5V or 2.8V logic supplies, while VCC2 covers low-voltage cores such as 1.0V–1.2V FPGA I/O banks.

Is the MAX6717AUKRVD3+T compatible with manual reset pushbutton interfaces?

Yes, the MAX6717AUKRVD3+T includes an active-low MR pin with internal 50kΩ pullup to VCC1, enabling direct connection to a normally-open momentary switch between MR and GND. Release of the switch initiates a full 140ms reset pulse, and no external debounce components are required. This feature simplifies field-service reset implementation in industrial and telecom equipment using the MAX6717AUKRVD3+T.

What package type and footprint does the MAX6717AUKRVD3+T use?

The MAX6717AUKRVD3+T is supplied in a 6-pin SOT23 package with outline number 21-0058 and land pattern 90-0175. It measures 2.9mm × 1.6mm with 0.95mm lead pitch and is RoHS-compliant (indicated by '+1' in package code U6+1). This compact footprint supports high-density PCB layouts in space-constrained applications such as modular telecom blades and handheld diagnostic tools using the MAX6717AUKRVD3+T.