Analog Devices Inc./Maxim Integrated MAX16007ATP+

Overview

MAX16007ATP+ from Maxim Integrated is an octal-voltage microprocessor supervisor IC designed for multivoltage system monitoring in industrial and telecom infrastructure. 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 a single active-low RESET output asserting on any fault or manual reset, features a 1.6s typical watchdog timeout with 54s startup delay, and operates across –40°C to +125°C.

For engineers reviewing the MAX16007ATP+ datasheet, MAX16007ATP+ pinout, MAX16007ATP+ application, or MAX16007ATP+ equivalent, this page delivers verified electrical specs, validated 24-pin TQFN (4mm × 4mm) pin mapping, confirmed reset timeout behavior (140ms min, capacitor-adjustable), and real-world substitution guidance for high-reliability power sequencing in servers and storage equipment.

Technical Context

The MAX16007ATP+ implements a hierarchical supervision architecture: eight monitored inputs feed into independent threshold comparators with 5%/10% tolerance selection via TOL pin, and all outputs converge to a single open-drain RESET signal that remains asserted for the full reset timeout after recovery. Its watchdog timer clears on WDI edges and enters a 54s startup window before first timeout enforcement.

All eight IN_ inputs support fixed thresholds (e.g., 5V, 3.3V, 1.8V) or adjustable thresholds (0.366V–0.400V), each with 0.5% hysteresis; the RESET output has guaranteed logic state down to VCC = 1V, and internal 30µA pullups eliminate external resistors while allowing 5.5V-tolerant drive capability.

Key Specifications

Pinout & Package

MAX16007ATP+ uses a 24-pin TQFN package (4mm × 4mm, 0.5mm pitch) with exposed pad (EP) internally connected to GND for thermal management. Pinout conforms to MAX16006/MAX16007 configuration per Maxim's datasheet Rev 9 (p.13–14).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16006ATP+, the MAX16007ATP+ adds watchdog supervision with 54s startup delay - critical for unattended systems - while retaining identical pin compatibility and reset behavior. Versus TPS389009DSGT, it provides greater flexibility in timeout tuning, margin enable, and sub-0.4V monitoring, at the cost of two additional pins and higher integration complexity.

Availability

MAX16007ATP+ 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 MAX16007ATP+ 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 infrastructure, emphasizing low quiescent current (45–70µA), wide temperature operation (–40°C to +125°C), and flexible threshold configuration.

FAQ

What is the minimum VCC voltage required for reliable operation of the MAX16007ATP+?

The MAX16007ATP+ guarantees correct logic state down to VCC = 1.0V, enabling robust operation during brownout conditions. Below 1.0V, RESET and OUT_ outputs may enter undefined states. For full specification compliance, VCC must be maintained between 1.0V and 5.5V, with typical operation at 3.3V or 5V. The device draws only 45µA at VCC = 3.3V, minimizing impact on low-voltage rails.

How does the SRT pin adjust the reset timeout period in the MAX16007ATP+?

The SRT pin on the MAX16007ATP+ sets the reset timeout period by connecting an external capacitor (CSRT) to GND. The timeout follows tRP = 2.06 × 10⁶ Ω × CSRT (F), yielding ~200ms with 1500pF. Connecting SRT to VCC selects the internal 140ms minimum timeout. This capacitor-based method avoids trimming resistors or firmware dependencies, supporting field-programmable timing across production batches.

Can the MAX16007ATP+ monitor voltages below 0.9V, and what is the lowest supported threshold?

Yes, the MAX16007ATP+ supports adjustable thresholds as low as 0.366V (TOL = VCC) or 0.388V (TOL = GND), enabling supervision of sub-0.9V rails such as DDR4 VDDQ (0.6V), LPDDR4 (0.6V), or advanced SoC core supplies (0.75V). Fixed thresholds include 0.9V ±5%/±10%, but the adjustable mode provides continuous coverage down to 0.366V with ±1.5% accuracy over temperature.

What is the purpose of the MARGIN pin on the MAX16007ATP+, and how is it used in production testing?

The MARGIN pin on the MAX16007ATP+ is an active-low input that forces all OUT_ outputs and RESET into a high-impedance (deasserted) state, regardless of monitored voltage levels. During production margin testing, pulling MARGIN low allows engineers to safely reduce supply voltages below nominal thresholds while keeping downstream logic active - verifying system stability under worst-case voltage tolerances without triggering spurious resets.

Does the MAX16007ATP+ provide independent reset outputs for each monitored voltage, or only a single shared RESET signal?

The MAX16007ATP+ provides eight independent open-drain OUT_ outputs (OUT1–OUT8), each asserting low when its corresponding INx input falls below threshold, plus one shared active-low RESET output that asserts whenever *any* monitored voltage fails or MR is pulled low. Unlike earlier family members (e.g., MAX16000), the MAX16007ATP+ retains independent outputs while adding unified RESET - enabling both granular fault diagnosis and system-level reset coordination.