Analog Devices Inc./Maxim Integrated MAX16007ETP+

Overview

The MAX16007ETP+ from Maxim Integrated is an octal-voltage microprocessor supervisor IC in a 24-pin TQFN (4mm × 4mm) package, monitoring 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) with ±5% or ±10% threshold tolerance selection, 140ms minimum reset timeout, and integrated watchdog timer (1.6s typical timeout). It serves multivoltage ASICs and high-reliability server power sequencing.

For engineers reviewing the MAX16007ETP+ datasheet, MAX16007ETP+ pinout, MAX16007ETP+ application, or MAX16007ETP+ equivalent, key selection criteria include octal rail monitoring capability, watchdog timer with 54s startup delay, margin enable for production testing, open-drain outputs with internal 30µA pullups, and operation across –40°C to +125°C.

Technical Context

The MAX16007ETP+ implements a fixed-threshold + adjustable-input architecture supporting eight monitored inputs (IN1–IN8), each with programmable hysteresis (0.5% of V_TH) and independent open-drain output assertion. Its RESET output asserts when any input falls below its threshold or MR is pulled low, holding for a capacitor-adjustable timeout (min 140ms) after recovery.

It integrates a watchdog timer with 1.6s typical timeout and 54s startup delay, disabled by leaving WDI floating; a margin enable input deasserts all outputs during functional test; and TOL pin selects 5% or 10% threshold tolerance. All outputs operate correctly down to V_CC = 1V.

Key Specifications

Pinout & Package

MAX16007ETP+ uses a 24-pin TQFN package (4mm × 4mm, exposed pad), RoHS-compliant, with thermal pad internally connected to GND for enhanced heat dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16006ETP+, the MAX16007ETP+ adds watchdog supervision critical for firmware reliability; versus TPS38903B33DBVR, it delivers scalable octal monitoring, adjustable thresholds, and margin enable-essential for high-complexity ASIC platforms.

Availability

MAX16007ETP+ is available at Aetrix Electronics and suitable for storage equipment, servers, and networking/telecommunication equipment requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MAX16007ETP+ 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 demanding industrial, automotive, and communications applications.

The MAX16000–MAX16007 family was engineered specifically for multivoltage system supervision in high-density computing and infrastructure equipment, emphasizing rail independence, wide temperature operation, and testability features like margin enable.

FAQ

What is the maximum number of voltage rails monitored by the MAX16007ETP+?

The MAX16007ETP+ monitors eight independent voltage rails (IN1–IN8), supporting fixed thresholds for 5V, 3.3V, 3V, 2.5V, 1.8V, 1.5V, 1.2V, and 0.9V, plus adjustable thresholds down to 0.4V. This octal capability makes the MAX16007ETP+ ideal for supervising complex multivoltage ASICs and server motherboards where discrete supervisors would increase BOM cost and board area.

Does the MAX16007ETP+ include a watchdog timer, and what is its timeout behavior?

Yes, the MAX16007ETP+ includes a watchdog timer with a typical timeout period of 1.6s (1.12–2.40s range) and a 35–72s startup delay after reset. The timer clears on any WDI edge transition and asserts RESET if no activity occurs within the timeout window. Leaving WDI unconnected disables the watchdog. This behavior ensures reliable firmware supervision in the MAX16007ETP+ without external components.

How is the reset timeout period configured on the MAX16007ETP+?

The MAX16007ETP+ reset timeout is configured via the SRT pin: connecting SRT to V_CC enables the internal minimum 140ms timeout, while connecting an external capacitor from SRT to GND adjusts the timeout using t_RP = 2.06 × 10⁶ Ω × C_SRT. This flexibility allows precise power-up sequencing tuning in the MAX16007ETP+ across diverse system architectures without changing firmware or layout.

What is the purpose of the MARGIN pin on the MAX16007ETP+?

The MARGIN pin on the MAX16007ETP+ is an active-low input that deasserts all outputs (drives them high) regardless of monitored rail states, enabling controlled voltage margin testing during production. Pulling MARGIN low overrides fault conditions, allowing verification of system behavior under out-of-spec supply conditions-a key test feature built into the MAX16007ETP+ for high-reliability manufacturing.

What package type and thermal characteristics does the MAX16007ETP+ use?

The MAX16007ETP+ uses a 24-pin TQFN package (4mm × 4mm) with an exposed thermal pad internally connected to GND. The pad must be soldered to the PCB ground plane to achieve low thermal resistance and ensure junction temperature remains within the +150°C absolute maximum limit. This package supports high-density layouts while maintaining robust thermal performance in the MAX16007ETP+ across –40°C to +125°C operation.