Analog Devices Inc./Maxim Integrated MAX6755UKTD0+T

Overview

MAX6755UKTD0+T from Analog Devices is a low-power single-voltage window detector monitoring 3.3V system supplies with ±10% factory-trimmed thresholds (UVTH = 2.805–2.970V, OVTH = 3.630–3.795V), 20μs typical reset timeout, active-high push-pull RESET output, and manual reset input. It operates from 1.0V to 6.0V supply and supports industrial temperature range (-40°C to +125°C) in SOT23-5 package.

For engineers reviewing the MAX6755UKTD0+T datasheet, MAX6755UKTD0+T pinout, MAX6755UKTD0+T application, or MAX6755UKTD0+T equivalent, this device serves as a precision undervoltage/overvoltage supervisor for microprocessor power rails, DC-DC converter modules, and telecom power systems requiring fast fault response and low quiescent current (13–30μA).

Technical Context

The MAX6755UKTD0+T implements a fixed-threshold window detection architecture with internal voltage dividers calibrated for nominal 3.3V monitoring. Its SET pin configures the window width to ±10% by connecting to VCC, enabling precise tolerance control without external components.

It features a 20μs propagation delay on UV/OV assertion and deassertion, no timeout on OV output, and a manual reset input (MR) with 4μs minimum pulse width and 26kΩ internal pullup - all operating reliably down to VCC = 1.0V while maintaining valid output states.

Key Specifications

Pinout & Package

MAX6755UKTD0+T is housed in a 5-pin SOT23 package (package code U5+1, outline 21-0057), with exposed pad not present. Pin functions are validated per MAX6755 functional diagram and pin description table.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6755UKTD3+T and TLV809E33DBZR, the MAX6755UKTD0+T uniquely delivers fast 20μs window supervision with manual reset and configurable tolerance - essential for responsive, dual-fault-protected systems where both UV and OV events must trigger immediate action.

Availability

MAX6755UKTD0+T is available at Aetrix Electronics and suitable for telecom power supervision, data center server rails, industrial PLC I/O modules, and automotive ADAS camera power requiring stable component supply and guaranteed long-term availability.

Supply support for MAX6755UKTD0+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 MAX6755UKTD0+T belongs to the MAX6754–MAX6764 family of low-power window detectors designed specifically for robust, single- or dual-rail voltage supervision in harsh environments with wide temperature and supply voltage ranges.

FAQ

What is the exact undervoltage and overvoltage threshold range for MAX6755UKTD0+T?

The MAX6755UKTD0+T has a factory-trimmed 3.3V nominal monitoring voltage with ±10% window. Its undervoltage threshold (UVTH) ranges from 2.805V to 2.970V and overvoltage threshold (OVTH) from 3.630V to 3.795V across -40°C to +125°C, as specified in the Electrical Characteristics table under "T, 3.3V" suffix with SET = VCC.

Does MAX6755UKTD0+T support overvoltage detection only, or does it require both UV and OV conditions to assert RESET?

The MAX6755UKTD0+T asserts its active-high RESET output whenever the monitored VCC falls below UVTH or rises above OVTH - either condition alone triggers the output. This dual-fault detection is inherent to its window detector architecture and does not require simultaneous UV and OV events.

Can MAX6755UKTD0+T operate with a supply voltage lower than 3.3V?

Yes, the MAX6755UKTD0+T operates from VCC = 1.0V to 6.0V. While it is factory-trimmed to monitor a nominal 3.3V rail, its internal reference and comparators remain functional down to 1.0V, and RESET output states are guaranteed correct for VCC ≥ 1.0V - enabling use in brownout scenarios.

What is the function of the SET pin on MAX6755UKTD0+T, and how should it be connected?

The SET pin on MAX6755UKTD0+T selects the window tolerance: connect SET to VCC for ±10%, to GND for ±5%, or bias to VCC/2 for ±15%. For the MAX6755UKTD0+T, SET must be tied to VCC to achieve its specified ±10% window; floating or incorrect bias invalidates threshold accuracy.

Is MAX6755UKTD0+T pin-compatible with other devices in the MAX6754–MAX6764 family?

The MAX6755UKTD0+T uses the 5-pin SOT23 package and shares identical pinout (VCC, GND, MR, RESET, SET) with MAX6754/MAX6756 variants in the same package. However, output polarity and timeout options differ - MAX6755UKTD0+T has active-high RESET, while MAX6754UKTD0+T is active-low and MAX6756UKTD0+T is open-drain - so direct substitution requires circuit validation.