Analog Devices Inc./Maxim Integrated MAX16062CTG+T

Overview

MAX16062CTG+T from Maxim Integrated is an octal-voltage microprocessor supervisor IC designed for multivoltage system power sequencing and fault monitoring. It monitors eight independent supply rails (e.g., 3.3V, 2.5V, 1.8V, and adjustable down to 0.4V), provides eight open-drain voltage-monitor outputs with internal 30µA pullups, and asserts a shared active-low RESET output when any monitored voltage falls below its threshold or manual reset (MR) is triggered. It operates across –40°C to +125°C in server and automotive power management systems.

For engineers reviewing the MAX16062CTG+T datasheet, MAX16062CTG+T pinout, MAX16062CTG+T application, or MAX16062CTG+T equivalent, key selection criteria include its 1% threshold accuracy over temperature, capacitor-adjustable reset timeout (min 140ms), integrated watchdog timer (1.6s typical timeout), margin enable functionality, and tolerance-selectable 5%/10% input thresholds - all in a 24-pin 4mm × 4mm thin QFN package.

Technical Context

The MAX16062CTG+T implements eight independent voltage comparators with hysteresis (0.5% of threshold), each feeding dedicated open-drain OUTx outputs. Its RESET output combines OR-logic across all eight monitor channels and the MR input, with a programmable timeout determined by an external capacitor on SRT or fixed at ≥140ms when SRT = VCC.

It integrates a watchdog timer with 54s startup delay and 1.6s typical timeout, disabled by leaving WDI floating; a TOL pin selects 5% or 10% threshold tolerance; and a MARGIN input forces all outputs high during margin testing. All outputs remain functional down to VCC = 1V, supporting brownout resilience in industrial embedded systems.

Key Specifications

Pinout & Package

MAX16062CTG+T is housed in a 24-pin, 4mm × 4mm, 0.5mm pitch thin QFN package with exposed pad (EP) internally connected to GND. The package supports high thermal dissipation and compact PCB layout in space-constrained multivoltage systems.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS389009DSGR and ADM1266BCPZ, the MAX16062CTG+T delivers unique value through its combination of 1% accuracy, hardware-programmable reset timeout, integrated watchdog with startup delay, and MARGIN enable - all in a simple, pin-strapped, zero-firmware analog solution ideal for cost-sensitive, high-reliability multivoltage systems.

Availability

MAX16062CTG+T is available at Aetrix Electronics and suitable for server power sequencing, automotive ADAS ECUs, and industrial PLC backplanes requiring stable component supply with guaranteed long-term availability and full industrial temperature support.

Supply support for MAX16062CTG+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 MAX16062CTG+T belongs to Maxim's µP supervisor product line, engineered specifically for high-accuracy, multi-rail power monitoring and reset generation in complex embedded systems where reliability and temperature stability are critical.

FAQ

What is the factory-configured threshold configuration for MAX16062CTG+T?

The "C" suffix in MAX16062CTG+T denotes the MAX16062C variant, which is factory preset to monitor eight voltages as follows: IN1 = 3.3V, IN2 = 2.5V, IN3 = adjustable (0.394V typ, TOL = GND), IN4 = 1.8V, IN5–IN8 = adjustable. This configuration balances common fixed rails with flexibility for custom low-voltage domains. No external resistors are needed for these thresholds.

How does the MARGIN input function in MAX16062CTG+T?

The MARGIN input on MAX16062CTG+T is an active-low signal that forces all eight OUTx outputs and the RESET output into a high-impedance (deasserted) state, regardless of input voltage conditions. This allows safe margin testing of power supplies while keeping downstream logic in a known, non-reset state - a critical capability for automated production test systems validating voltage tolerance margins.

Can MAX16062CTG+T monitor voltages below 1.0V?

Yes - MAX16062CTG+T supports adjustable input thresholds down to 0.369V (TOL = VCC) or 0.390V (TOL = GND), enabling direct monitoring of sub-1.0V rails such as 0.85V GPU cores or 0.75V AI accelerators. External resistor dividers extend this capability further; for example, a 1:1 divider allows monitoring of 0.78V inputs using the 0.39V threshold.

What is the role of the exposed pad (EP) on MAX16062CTG+T?

The exposed pad (EP) on MAX16062CTG+T is internally connected to GND and must be soldered to the PCB ground plane. It provides a low-thermal-resistance path from the die junction to the board, enabling reliable operation at +125°C ambient. EP is not intended as the primary electrical GND connection - the dedicated Pin 6 (GND) must still be routed to minimize noise coupling into sensitive analog comparators.

Is the watchdog timer in MAX16062CTG+T enabled by default?

No - the watchdog timer in MAX16062CTG+T is disabled by default and requires connection of the WDI pin to a toggling signal (e.g., MCU GPIO) to activate. Leaving WDI unconnected engages an internal 400nA detector that holds the timer inactive. Once enabled, the watchdog asserts RESET after 1.12–2.40s (typ 1.6s) of inactivity, with a 35–72s startup delay before first timeout begins.