Analog Devices Inc./Maxim Integrated MAX16062ETG+T

Overview

The MAX16062ETG+T from Maxim Integrated is an octal-voltage microprocessor supervisor IC designed for multivoltage system monitoring in industrial and telecom equipment. It monitors eight independent supply rails (e.g., 3.3V, 2.5V, 1.8V, and adjustable down to 0.4V), provides eight open-drain OUT_ outputs with internal 30µA pullups, and asserts a shared active-low RESET output when any monitored voltage falls below its threshold or upon manual reset assertion.

For engineers reviewing the MAX16062ETG+T datasheet, MAX16062ETG+T pinout, MAX16062ETG+T application, or MAX16062ETG+T equivalent, key selection criteria include its 1% threshold accuracy over –40°C to +125°C, capacitor-adjustable reset timeout (min 140ms), integrated watchdog timer (1.6s typ), margin enable function, and tolerance-selectable 5%/10% input thresholds.

Technical Context

The MAX16062ETG+T implements eight independent voltage comparators with hysteresis (0.5% of V_TH), each feeding dedicated open-drain outputs. Its RESET logic combines ORed comparator failures and MR assertion, with a programmable timeout determined by SRT pin capacitance or internal 140ms minimum.

It integrates a watchdog timer with 54s startup delay and 1.6s typical timeout, disabled by leaving WDI floating; all outputs remain functional down to V_CC = 1V, and threshold tolerance (5% or 10%) is selected via TOL pin state.

Key Specifications

Pinout & Package

MAX16062ETG+T is housed in a 24-pin thin QFN package (4mm × 4mm, exposed pad), optimized for thermal performance and high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16061TP+T, MAX16062ETG+T adds two extra monitored rails and outputs without increasing package size beyond 24 pins; versus TPS3808G33DBVR, it delivers eight-fold integration, programmable timing, and advanced features like watchdog and margin enable - reducing component count, BOM complexity, and debug effort in multirail systems.

Availability

MAX16062ETG+T is available at Aetrix Electronics and suitable for server power sequencing, telecom line card monitoring, automotive ADAS domain controllers, and industrial PLC I/O modules requiring stable component supply across extended temperature and long product lifecycles.

Supply support for MAX16062ETG+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

Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for demanding industrial, automotive, and communications applications.

The MAX16062ETG+T belongs to Maxim's µP supervisor family, engineered specifically for high-reliability multivoltage system monitoring with tight threshold accuracy, wide temperature operation, and feature-rich supervision including watchdog and margin test support.

FAQ

What is the function of the TOL pin on the MAX16062ETG+T?

The TOL pin on the MAX16062ETG+T selects input threshold tolerance: connecting TOL to GND configures 5% tolerance for tighter monitoring, while connecting TOL to V_CC selects 10% tolerance to improve noise immunity in electrically noisy environments. This setting affects both threshold accuracy and hysteresis, and applies uniformly across all eight monitored inputs of the MAX16062ETG+T.

Can the MAX16062ETG+T monitor voltages below 1.0V?

Yes, the MAX16062ETG+T can monitor voltages as low as 0.4V using its adjustable input thresholds. When configured with adjustable IN_ pins (e.g., MAX16062E variant), the internal reference is 0.394V (TOL = GND) or 0.373V (TOL = V_CC), and external resistor dividers extend monitoring range downward - enabling validation of sub-1V FPGA core or AI accelerator rails in the MAX16062ETG+T.

How does the watchdog timer on the MAX16062ETG+T behave during power-up?

The MAX16062ETG+T watchdog timer enters a 54s startup delay after power-up or RESET assertion, during which no timeout occurs regardless of WDI state. This prevents spurious resets before firmware initialization completes. After this period, the timer actively monitors WDI edges; leaving WDI unconnected disables the watchdog entirely via a 400nA float-detection circuit in the MAX16062ETG+T.

What is the purpose of the MARGIN input on the MAX16062ETG+T?

The MARGIN input on the MAX16062ETG+T is an active-low signal that forces all eight OUT_ outputs and the RESET output into a high (deasserted) state, overriding all voltage-monitoring logic. This enables safe margin testing - such as applying ±5% voltage deviations - without triggering false system resets, making it essential for functional safety validation in the MAX16062ETG+T.

Does the MAX16062ETG+T require external pullup resistors for its open-drain outputs?

No, the MAX16062ETG+T includes internal 30µA pullup current sources on all OUT_ and RESET outputs, eliminating the need for external pullup resistors in most 3.3V or 5V logic interfaces. However, if interfacing with a different supply voltage (e.g., 1.8V or 2.5V logic), an external pullup to that voltage is required - and the MAX16062ETG+T's internal circuitry prevents reverse current flow to V_CC.