Analog Devices Inc./Maxim Integrated MAX6756UKTD0/V+T

Overview

MAX6756UKTD0/V+T from Analog Devices is a low-power, single-supply window voltage detector with factory-trimmed 3.3V nominal threshold, ±10% window (2.97V–3.63V), 20μs propagation delay, active-low open-drain RESET output, and manual reset input. It monitors microprocessor power rails in telecom and industrial systems where precise undervoltage/overvoltage detection with minimal quiescent current is required.

For engineers reviewing the MAX6756UKTD0/V+T datasheet, MAX6756UKTD0/V+T pinout, MAX6756UKTD0/V+T application, or MAX6756UKTD0/V+T equivalent, this device delivers AEC-Q100 qualified operation across –40°C to +125°C, supports RC-filtered VCC inputs for transient immunity, and provides deterministic reset timing without external components.

Technical Context

The MAX6756UKTD0/V+T implements a precision bandgap reference with internal resistor-divider network to set fixed 3.3V nominal monitoring thresholds. Its SET pin is tied to VCC to configure a ±10% window, and its open-drain RESET output asserts low when VCC falls below 2.97V or rises above 3.63V.

It features a 20μs typical timeout period (D0 suffix), internal 26kΩ MR pullup, and guaranteed output validity down to VCC = 1.0V - enabling reliable reset assertion during brownout recovery. The device operates with only 13–30μA supply current at 3.6V.

Key Specifications

Pinout & Package

MAX6756UKTD0/V+T is housed in a RoHS-compliant 5-pin SOT23 package (package code U5+1A, outline 21-0057) with exposed pad not connected. Pin functions are validated per Maxim Integrated datasheet Rev 12 (2022).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV809E33DBZR and ADM6315-33ARTZ-RL, MAX6756UKTD0/V+T uniquely provides true window supervision (UV+OV), ±10% adjustability via SET, and 20μs fast response - making it optimal for safety-critical, high-reliability 3.3V rail monitoring where both under- and overvoltage faults must trigger immediate action.

Availability

MAX6756UKTD0/V+T is available at Aetrix Electronics and suitable for telecom infrastructure, automotive body electronics, and industrial control systems requiring stable component supply with AEC-Q100 assurance and extended temperature support.

Supply support for MAX6756UKTD0/V+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 MAX675x series is designed specifically for precision power-supply monitoring in harsh environments, emphasizing low power, wide temperature operation, and factory-trimmed accuracy for plug-and-play system integration.

FAQ

What is the exact undervoltage and overvoltage threshold for MAX6756UKTD0/V+T?

The MAX6756UKTD0/V+T has a factory-trimmed nominal voltage of 3.3V with ±10% window tolerance. This yields an undervoltage threshold (UVTH) of 2.97V (min) to 3.135V (max) and an overvoltage threshold (OVTH) of 3.63V (min) to 3.795V (max), specified over –40°C to +125°C. These values are confirmed in the Electrical Characteristics table of the MAX6754–MAX6764 datasheet Rev 12.

Does MAX6756UKTD0/V+T require external components to operate?

No, MAX6756UKTD0/V+T operates autonomously with only a 0.1µF bypass capacitor on VCC. However, Analog Devices recommends adding a 100Ω resistor in series with that capacitor (RC filter) on the VCC pin to ensure immunity to fast transients - a requirement explicitly stated in the MAX6756 functional description and Figure 9 of the datasheet.

Is MAX6756UKTD0/V+T pin-compatible with other devices in the MAX6754–MAX6764 family?

MAX6756UKTD0/V+T uses the 5-pin SOT23 package (U5+1A) shared with MAX6754/MAX6755 variants, but pin functions differ for models with dual outputs (e.g., MAX6757) or dual supplies (e.g., MAX6760). Specifically, pin 4 is RESET (open-drain) in MAX6756UKTD0/V+T, whereas it is UV in MAX6757 and VCC2 in MAX6760 - so it is not universally pin-compatible across the family.

What does the "/V+T" suffix indicate in MAX6756UKTD0/V+T?

The "/V" denotes AEC-Q100 qualification for automotive applications, while "+T" indicates tape-and-reel packaging (3,000 units per reel). This suffix confirms the part meets stress testing requirements for temperature cycling, humidity, and mechanical shock - critical for under-hood and chassis-mounted electronics.

Can MAX6756UKTD0/V+T monitor voltages below 1.0V?

No. MAX6756UKTD0/V+T requires VCC ≥ 1.0V to maintain valid output states, and its internal reference is trimmed for 3.3V nominal operation. While outputs remain asserted correctly down to VCC = 1.0V, the device cannot accurately monitor supply voltages below 1.0V - the lowest supported monitored voltage in the family is 0.9V (MAX6756UKED0/V+T), not this variant.