Analog Devices Inc./Maxim Integrated MAX6762TATZD0+

Overview

MAX6762TATZD0+ from Maxim Integrated is a dual-voltage window detector IC designed to monitor undervoltage and overvoltage conditions on two independent power rails-VCC (3.3V nominal) and VCC2 (2.5V nominal)-with ±5% factory-trimmed thresholds, 20µs propagation delay, open-drain UV/OV outputs, latched OV function, and manual reset input. It operates from -40°C to +125°C and draws only 13µA supply current, targeting fault-tolerant microprocessor supervision in automotive DC-DC modules.

For engineers reviewing the MAX6762TATZD0+ datasheet, MAX6762TATZD0+ pinout, MAX6762TATZD0+ application, or MAX6762TATZD0+ equivalent, key selection considerations include dual-rail monitoring capability, ±5% window tolerance at 3.3V/2.5V, latched overvoltage response, TDFN-8 package footprint, and compatibility with high-reliability industrial and automotive power sequencing designs.

Technical Context

The MAX6762TATZD0+ implements two independent voltage comparators with internal precision reference and hysteresis (0.7%), each feeding separate UV and OV output latches. Its SET pin configures threshold window width (±5%/±10%/±15%), while OVLATCH enables persistent OV assertion until cleared-critical for fail-safe shutdown in safety-critical systems.

VCC powers the device and serves as the first monitored rail; VCC2 is the second monitored rail and can act as auxiliary supply when VCC2 > VCC. All outputs remain valid down to VCC = 1.0V, and the device guarantees correct logic state for UV/OV/RESET even during brownout conditions.

Key Specifications

Pinout & Package

MAX6762TATZD0+ is housed in an 8-pin TDFN package (3mm × 3mm, 0.75mm height) with exposed thermal pad (EP) internally connected to GND. The package supports high-density PCB layouts and efficient heat dissipation in thermally constrained applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6761TATZD0+, MAX6762TATZD0+ provides open-drain UV for flexible fault-bus interfacing; compared with TLV809E33DBZR, it adds full dual-rail coverage, latched OV, and adjustable window-making it uniquely suited for ASIL-B-compliant power integrity systems.

Availability

MAX6762TATZD0+ is available at Aetrix Electronics and suitable for automotive DC-DC converter supervision, industrial PLC power sequencing, and telecom base station power management requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX6762TATZD0+ 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 demanding industrial, automotive, and communications applications.

The MAX6754–MAX6764 family delivers low-power, high-accuracy voltage supervision for safety-critical power systems-specifically engineered to replace discrete comparator solutions in dual-rail microprocessor and FPGA power domains.

FAQ

What is the exact voltage threshold configuration for MAX6762TATZD0+?

The MAX6762TATZD0+ is configured for VCC = 3.3V nominal (TA suffix) and VCC2 = 2.5V nominal (TZ suffix), with ±5% window tolerance (D0 suffix indicates SET = GND). This yields UVTH = 3.135V–3.465V for VCC and UVTH2 = 2.375V–2.625V for VCC2, and corresponding OV thresholds at +5% above nominal. These values are factory-trimmed and specified over -40°C to +125°C.

Does MAX6762TATZD0+ support latched overvoltage behavior on both VCC and VCC2?

Yes, MAX6762TATZD0+ supports latched overvoltage assertion on both VCC and VCC2 rails. When OVLATCH is driven high, the OV output remains asserted regardless of whether the overvoltage condition occurs on VCC, VCC2, or both-and stays latched until OVLATCH is pulled low after the fault is removed. This behavior is confirmed in the functional diagram (Figure 3) and Electrical Characteristics table.

What is the role of the SET pin on MAX6762TATZD0+ and how must it be connected?

On MAX6762TATZD0+, the SET pin selects the window tolerance: connect SET to GND for ±5%, to VCC for ±10%, or bias to VCC/2 for ±15%. For this specific part (D0 suffix), SET must be hard-connected to GND to achieve the specified ±5% window. Incorrect SET biasing will shift thresholds outside datasheet guarantees and invalidate the TA/TZ nominal voltage calibration.

Can MAX6762TATZD0+ operate with VCC below 1.4V?

MAX6762TATZD0+ monitors voltages down to 0.9V nominal, but its internal circuitry requires VCC ≥ 1.4V for accurate threshold comparison. However, outputs remain asserted in correct logic state for VCC as low as 1.0V-ensuring reliable fault signaling during deep brownout. This is explicitly stated in Note 2 of the Electrical Characteristics table.

Is the exposed pad (EP) on MAX6762TATZD0+ electrically connected, and how should it be handled?

Yes, the exposed pad (EP) on MAX6762TATZD0+ is internally connected to GND. It must be soldered to a PCB thermal pad tied to the system ground plane to ensure proper thermal performance and electrical stability. Leaving EP unconnected may cause erratic behavior or reduced reliability-this requirement is documented in the Pin Description section (page 10).