Analog Devices Inc./Maxim Integrated MAX16006DTG+

Overview

MAX16006DTG+ from Maxim Integrated is an octal-voltage microprocessor supervisor IC designed for complex multivoltage systems. It monitors eight independent supply rails (e.g., 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 0.9V, and adjustable down to 0.4V), provides independent open-drain outputs per channel, features a 140ms minimum reset timeout (capacitor-adjustable), and operates across –40°C to +125°C in a 24-pin TQFN package. It is used in high-reliability server power sequencing.

For engineers reviewing the MAX16006DTG+ datasheet, MAX16006DTG+ pinout, MAX16006DTG+ application, or MAX16006DTG+ equivalent, key selection criteria include its eight-channel monitoring capability, internal 30µA pullups eliminating external resistors, watchdog timer with 1.6s timeout, manual reset and margin enable inputs, and AEC-Q100 qualification eligibility for automotive-grade designs.

Technical Context

The MAX16006DTG+ implements independent voltage monitoring with fixed thresholds (5V/3.3V/3V/2.5V/1.8V/1.5V/1.2V/0.9V) or adjustable thresholds as low as 0.4V, selectable via TOL pin (5% or 10% tolerance). Each monitored input drives a dedicated open-drain output with internal 30µA pullup, ensuring correct logic state down to VCC = 1V.

It integrates a watchdog timer with 1.6s typical timeout and 54s startup delay after reset, asserted on WDI timeout or any undervoltage condition. The RESET output is active-low and asserts when any monitored voltage falls below threshold or MR is pulled low, remaining asserted for the full reset timeout period after recovery.

Key Specifications

Pinout & Package

MAX16006DTG+ is housed in a 24-pin TQFN package (4mm × 4mm, 0.5mm pitch) with exposed thermal pad (EP) internally connected to GND. Pinout supports eight monitored inputs (IN1–IN8), eight independent outputs (OUT1–OUT8), plus control signals: MR (manual reset), MARGIN (output disable), TOL (threshold tolerance select), SRT (reset timeout adjust), WDI (watchdog input), RESET (global reset output), VCC, GND, and four N.C. pins.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16007DTG+, the MAX16006DTG+ provides greater configuration flexibility across threshold variants, while both share identical timing, watchdog, and thermal specs. Unlike TPS3808G33DBVR, MAX16006DTG+ delivers full octal supervision with integrated features essential for complex ASIC and server platforms.

Availability

MAX16006DTG+ is available at Aetrix Electronics and suitable for storage equipment, servers, and networking/telecommunication equipment requiring stable component supply and long-term industrial temperature support.

Supply support for MAX16006DTG+ 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, mixed-signal, and power management ICs for industrial, computing, and communications markets.

The MAX16000–MAX16007 family was engineered to simplify power integrity in multivoltage systems - delivering scalable supervision (quad/hex/octal) with integrated watchdog, margin test, and flexible reset timing in compact TQFN packages.

FAQ

What is the function of the TOL pin on the MAX16006DTG+?

The TOL pin on the MAX16006DTG+ selects input threshold tolerance: connecting TOL to GND sets ±5% tolerance, while connecting it to VCC sets ±10%. This allows field-configurable accuracy matching for different supply rail stability requirements without changing the bill of materials. The MAX16006DTG+ uses this setting across all eight monitored inputs, and the choice directly affects the voltage window within which each INx input is considered valid.

Does the MAX16006DTG+ support adjustable reset timeout, and how is it implemented?

Yes, the MAX16006DTG+ supports adjustable reset timeout via the SRT pin. Connecting an external capacitor from SRT to GND sets the timeout period using the formula tRP = 2.06 × 10⁶ Ω × CSRT (F). For example, a 1500pF capacitor yields ~3.09ms, while larger values scale linearly. The internal minimum timeout of 140ms is achieved by tying SRT to VCC. This flexibility allows precise alignment with processor reset timing requirements in the MAX16006DTG+ design.

How many independent outputs does the MAX16006DTG+ provide, and what is their electrical behavior?

The MAX16006DTG+ provides eight independent open-drain outputs (OUT1–OUT8), one per monitored input (IN1–IN8). Each output has an internal 30µA pullup to VCC, eliminating the need for external resistors. When its corresponding input falls below threshold, the output pulls low and remains low until the input rises above threshold plus hysteresis. The MAX16006DTG+ outputs can be driven by external voltages up to 5.5V, enabling level-shifting in mixed-voltage systems.

Is the MAX16006DTG+ qualified for automotive applications?

The MAX16006DTG+ is not explicitly AEC-Q100 qualified per the datasheet; only MAX16001ATE/V+ and MAX16001DTE/V+ variants carry that qualification. However, the MAX16006DTG+ operates across –40°C to +125°C and meets industrial reliability standards. For automotive use, designers must perform full system-level qualification - the MAX16006DTG+ provides the same core functionality but lacks certified automotive grade documentation and screening.

What is the purpose of the MARGIN pin on the MAX16006DTG+?

The MARGIN pin on the MAX16006DTG+ is an active-low input that forces all eight outputs (OUT1–OUT8) into a high-impedance (deasserted) state regardless of input voltage conditions - enabling safe voltage margin testing during production. Pulling MARGIN low overrides all undervoltage detections, allowing controlled stress testing of individual rails. This feature is integral to manufacturing test flow and is supported natively in the MAX16006DTG+ without external logic.