Analog Devices Inc./Maxim Integrated MAX6762TAZAD3+T

Overview

MAX6762TAZAD3+T from Analog Devices is a dual-voltage window detector IC that monitors both VCC (3.3V nominal) and VCC2 (2.5V nominal) supplies with ±15% factory-trimmed thresholds, 100ms minimum reset timeout, latched overvoltage output, manual reset input, and operation from -40°C to +125°C. It serves as a system-level power supervisor in telecom DC-DC modules.

For engineers reviewing the MAX6762TAZAD3+T datasheet, MAX6762TAZAD3+T pinout, MAX6762TAZAD3+T application, or MAX6762TAZAD3+T equivalent, key selection criteria include dual-supply monitoring capability, latched OV output behavior, TDFN-8 package footprint, ±15% window select via SET pin biasing, and AEC-Q100 qualification for automotive-grade reliability.

Technical Context

The MAX6762TAZAD3+T implements independent undervoltage and overvoltage comparators for two supply rails-VCC (3.3V) and VCC2 (2.5V)-with internal reference trimming and external window scaling via the SET pin. Its latched OV output remains asserted until cleared by OVLATCH, enabling fault capture in safety-critical systems.

It features a manual reset input (MR) with 4µs minimum pulse width and 300ns propagation delay, supports VCC down to 1.0V while maintaining valid outputs, and draws only 13µA typical supply current at 3.6V. The device uses push-pull UV and open-drain OV outputs with guaranteed VOL ≤ 0.3V at ISINK ≥ 1.4mA.

Key Specifications

Pinout & Package

MAX6762TAZAD3+T is housed in an 8-pin TDFN package (package code T833+2, outline 21-0137) with exposed pad connected to GND. Pin 1 is MR, Pin 2 is OVLATCH, Pin 3 is UV, Pin 4 is OV, Pin 5 is SET, Pin 6 is VCC2, Pin 7 is GND, Pin 8 is VCC.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6761TAZAD3+T and TPS3808G33DBVR, the MAX6762TAZAD3+T uniquely delivers dual-rail monitoring with latched OV output in TDFN-8, making it irreplaceable for safety-critical dual-supply systems requiring persistent fault capture without software intervention.

Availability

MAX6762TAZAD3+T is available at Aetrix Electronics and suitable for telecom power modules, automotive ADAS ECUs, industrial PLC I/O cards, and server management controllers requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX6762TAZAD3+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, headquartered in Wilmington, MA.

The MAX6762TAZAD3+T belongs to the MAX6754–MAX6764 family of low-power window detectors, designed specifically for robust dual-rail power supervision in automotive, industrial, and telecom infrastructure where fault retention and wide-temperature operation are critical.

FAQ

What is the function of the SET pin on the MAX6762TAZAD3+T?

The SET pin on the MAX6762TAZAD3+T selects the undervoltage/overvoltage window width: biasing to GND configures ±5%, to VCC configures ±10%, and to VCC/2 configures ±15%. For MAX6762TAZAD3+T, the suffix "Z" indicates 2.5V VCC2 nominal, and "A" denotes ±15% window, so SET must be biased to VCC/2 to match factory-trimmed thresholds. This eliminates external resistor networks while ensuring precise window scaling.

Does the MAX6762TAZAD3+T support monitoring of both VCC and VCC2 simultaneously?

Yes, the MAX6762TAZAD3+T simultaneously monitors VCC (3.3V nominal) and VCC2 (2.5V nominal) with independent undervoltage and overvoltage comparators. An undervoltage or overvoltage condition on either rail asserts the corresponding UV or OV output. This dual-monitoring capability is intrinsic to the MAX6762TAZAD3+T's architecture and is confirmed in its functional diagram and electrical characteristics tables.

What is the purpose of the OVLATCH pin on the MAX6762TAZAD3+T?

The OVLATCH pin on the MAX6762TAZAD3+T controls latching behavior of the OV output: driving OVLATCH high latches OV in the asserted state during any overvoltage event on VCC or VCC2; driving it low clears the latch once the overvoltage condition is removed. The MAX6762TAZAD3+T requires this external control to retain fault status-critical for diagnostic logging in automotive and industrial systems where transient overvoltages must be captured and reported.

What is the guaranteed supply voltage range for the MAX6762TAZAD3+T?

The MAX6762TAZAD3+T operates with VCC from 1.0V to 6.0V and VCC2 from 0V to 6.0V, but voltage monitoring functionality requires VCC ≥ 1.4V and VCC2 ≥ 1.4V. Outputs remain in correct logic state down to VCC = 1.0V, enabling brownout detection during deep supply sag. This specification is verified across –40°C to +125°C and documented in the Absolute Maximum Ratings and Electrical Characteristics sections of the MAX6762TAZAD3+T datasheet.

Is the MAX6762TAZAD3+T AEC-Q100 qualified?

The MAX6762TAZAD3+T is AEC-Q100 qualified - specifically, all /V and /T suffix variants in the MAX6760–MAX6762 series meet Grade 1 (–40°C to +125°C) stress testing requirements. The "T" in MAX6762TAZAD3+T denotes the temperature grade, confirming its qualification for automotive applications including engine control, ADAS, and body electronics where reliability under thermal cycling and vibration is mandatory.