Analog Devices Inc./Maxim Integrated MAX6758UTTD0+T

Overview

MAX6758UTTD0+T from Analog Devices is a single-supply, low-power window voltage detector with factory-trimmed 3.3V nominal monitoring, ±10% adjustable window (SET = VCC), independent active-high push-pull UV and open-drain OV outputs, 20μs propagation delay, and manual reset input - used in telecom power rails to prevent microprocessor malfunction during brownout or overvoltage events.

For engineers reviewing the MAX6758UTTD0+T datasheet, MAX6758UTTD0+T pinout, MAX6758UTTD0+T application, or MAX6758UTTD0+T equivalent, key selection criteria include its 3.3V fixed threshold with ±10% window selectability, dual independent output logic types, -40°C to +125°C operation, SOT23-6 package, and immunity to <300ns transients.

Technical Context

The MAX6758UTTD0+T implements a precision bandgap reference with comparator-based undervoltage/overvoltage detection on a single monitored supply (VCC). Its internal thresholds are factory trimmed for 3.3V nominal (UVTH = 2.805–2.970V, OVTH = 3.630–3.795V at TA = –40°C to +125°C) and configured via SET pin tied to VCC for ±10% window.

It features separate active-high UV (push-pull) and active-low OV (open-drain) outputs with no timeout on OV assertion, 20μs typical propagation delay, and MR input with 4μs minimum pulse width and 26kΩ internal pullup - enabling system-level reset coordination without external components.

Key Specifications

Pinout & Package

MAX6758UTTD0+T is housed in a 6-pin SOT23 package (package code U6+1, outline 21-0058), with 1.6mm × 2.9mm footprint and 0.95mm height - optimized for space-constrained telecom line cards and server VRM modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6757UTTD0+T and TLV809E33DBZR, the MAX6758UTTD0+T uniquely delivers active-high UV with open-drain OV in one SOT23-6 package - enabling direct NMI assertion and flexible fault-bus wiring without logic inversion or supplemental ICs.

Availability

MAX6758UTTD0+T is available at Aetrix Electronics and suitable for telecom infrastructure, server power management, and industrial control applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-aligned reliability.

Supply support for MAX6758UTTD0+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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The MAX6758UTTD0+T belongs to the MAX6754–MAX6764 family of low-power window detectors designed specifically for robust, temperature-stable monitoring of single- and dual-voltage rails in mission-critical embedded systems.

FAQ

What is the exact undervoltage and overvoltage threshold range for MAX6758UTTD0+T at full temperature?

The MAX6758UTTD0+T has a guaranteed undervoltage threshold (UVTH) of 2.805V to 2.970V and overvoltage threshold (OVTH) of 3.630V to 3.795V across –40°C to +125°C, with SET tied to VCC for ±10% window. These values are factory-trimmed and specified in the Electrical Characteristics table of the MAX6754–MAX6764 datasheet. The MAX6758UTTD0+T does not require external calibration.

Does MAX6758UTTD0+T support operation down to 1.0V VCC?

Yes, the MAX6758UTTD0+T guarantees correct output logic states (UV and OV) for VCC down to 1.0V, though voltage monitoring functionality requires VCC ≥ 1.4V per datasheet Note 2. Below 1.4V, outputs remain asserted in their last valid state - ensuring fail-safe behavior during deep brownout conditions. This behavior is confirmed for the MAX6758UTTD0+T in the Absolute Maximum Ratings and Electrical Characteristics sections.

How is the SET pin configured for ±10% window on MAX6758UTTD0+T?

For ±10% window operation, the SET pin of the MAX6758UTTD0+T must be connected directly to VCC. No external resistors or biasing networks are needed - the internal circuitry interprets VCC-level SET as the ±10% configuration. This is explicitly defined in the Pin Description and Detailed Description sections of the MAX6754–MAX6764 datasheet for all "T"-suffix parts like MAX6758UTTD0+T.

What is the reset timeout behavior of MAX6758UTTD0+T?

The MAX6758UTTD0+T does not implement a reset timeout period on its UV or OV outputs - only propagation delay (20μs typ). Unlike D3-suffix parts, the D0 suffix indicates no timed reset hold; outputs deassert immediately when VCC returns within the window. This is confirmed in the Timing Characteristics table where tRP = 20μs for D0 options, and no timeout value is listed for UV/OV assertion/deassertion.

Can MAX6758UTTD0+T monitor dual supplies like VCC and VCC2?

No, the MAX6758UTTD0+T is a single-supply window detector that monitors only VCC. It lacks VCC2, OVLATCH, and dual-monitoring circuitry found in MAX6760–MAX6762 parts. The "UTT" prefix confirms it is a single-voltage variant (U = SOT23, T = 3.3V nominal, T = ±10% window), and pinout shows no VCC2 or OVLATCH terminals - consistent with MAX6757–MAX6759 series documentation.