Analog Devices Inc./Maxim Integrated MAX6717UKYDD3+

Overview

MAX6717UKYDD3+ from Maxim Integrated is a dual-voltage microprocessor supervisory circuit in 5-pin SOT23 package, monitoring VCC1 (1.8V–5.0V) and VCC2 (0.9V–3.3V) with factory-trimmed reset thresholds, 210ms min reset timeout, and open-drain active-low RST output. It guarantees valid reset assertion down to VCC1 or VCC2 = 0.8V and consumes only 14µA typical supply current at 3.6V - used for reliable power-up sequencing and brownout protection in battery-powered embedded systems.

For engineers reviewing the MAX6717UKYDD3+ datasheet, MAX6717UKYDD3+ pinout, MAX6717UKYDD3+ application, or MAX6717UKYDD3+ equivalent, key selection criteria include dual-supply threshold accuracy (±1.5% over temp), immunity to sub-20µs VCC transients, manual reset input with 50kΩ internal pullup, and guaranteed operation across –40°C to +85°C industrial temperature range.

Technical Context

The MAX6717UKYDD3+ integrates two independent voltage comparators with precision internal references (VTH1 = 2.125V, VTH2 = 2.125V per suffix "Y"), a reset timeout timer with 210ms minimum delay (suffix "D3"), and an open-drain RST output referenced to VCC1. Its dual-threshold architecture ensures coordinated reset assertion when either monitored rail falls below its respective threshold.

No watchdog, power-fail, or RSTIN inputs are included - confirmed by Selector Guide and Pin Configuration tables showing MAX6717 as 2-monitor, open-drain RST-only, MR-enabled, no WDI/PFI/RSTIN. The device uses BiCMOS process (1072 transistors) and features 20ppm/°C reset threshold tempco and 0.5% hysteresis.

Key Specifications

Pinout & Package

MAX6717UKYDD3+ is housed in a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm), surface-mount, lead-free (RoHS-compliant), with thermal pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3808G18DBVR and ADM6717AKSZ-REEL7, MAX6717UKYDD3+ uniquely delivers matched dual-threshold supervision in one 5-pin package with open-drain RST - enabling robust, space-efficient power integrity for systems with independent core and I/O supplies.

Availability

MAX6717UKYDD3+ is available at Aetrix Electronics and suitable for industrial PLCs, medical wearables, point-of-sale terminals, and automotive infotainment subsystems requiring stable component supply with guaranteed long-term availability.

Supply support for MAX6717UKYDD3+ 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 power management, sensing, and interface applications - serving industrial, medical, and communications markets.

MAX6717UKYDD3+ belongs to the MAX6715–MAX6729 family of ultra-low-voltage SOT23 µP supervisory circuits, engineered specifically for multivoltage embedded systems needing reliable, low-quiescent-current power monitoring and reset control.

FAQ

What is the exact reset threshold voltage for MAX6717UKYDD3+ on VCC1 and VCC2?

The MAX6717UKYDD3+ has identical factory-trimmed reset thresholds of 2.125V (typical) for both VCC1 and VCC2, as indicated by the "Y" suffix in the part number per Maxim's Reset Voltage Threshold Suffix Guide. The actual tolerance is ±1.5% over –40°C to +85°C, with 0.5% hysteresis referenced to typical threshold.

Does MAX6717UKYDD3+ include a watchdog timer or power-fail functionality?

No, MAX6717UKYDD3+ does not include watchdog timer (WDI), power-fail input/output (PFI/PFO), or adjustable RSTIN functionality. Per Maxim's Selector Guide and Pin Configuration table, MAX6717 is strictly a dual-voltage supervisor with manual reset (MR) and open-drain RST - confirmed by absence of WDI, PFI, RSTIN, or PFO pins in its 5-pin SOT23 layout.

What is the reset timeout period of MAX6717UKYDD3+ and how is it set?

The MAX6717UKYDD3+ has a minimum reset timeout period of 210ms, defined by the "D3" suffix per Maxim's Reset Timeout Period Suffix Guide. This fixed timeout is factory-programmed and non-adjustable; it begins when reset is asserted and ensures the output remains low for ≥210ms after all monitored supplies recover above their thresholds.

Can MAX6717UKYDD3+ operate with VCC1 = 1.8V and VCC2 = 1.2V simultaneously?

Yes, MAX6717UKYDD3+ is fully specified to operate with VCC1 as low as 1.8V and VCC2 as low as 0.9V, including the 1.2V case. Its guaranteed reset validity down to VCC1 or VCC2 = 0.8V ensures correct behavior even during deep brownout conditions on either rail - critical for modern low-voltage SoC applications.

What package type and RoHS status does MAX6717UKYDD3+ use?

MAX6717UKYDD3+ is supplied in a 5-pin SOT23-5 package (2.9mm × 1.6mm × 1.1mm) with lead-free (RoHS-compliant) finish. The "+" suffix in the part number explicitly denotes lead-free packaging per Maxim's Ordering Information note, and the device meets JEDEC J-STD-020 moisture sensitivity level 1.