Analog Devices Inc./Maxim Integrated MAX16007BTP+

Overview

MAX16007BTP+ from Maxim Integrated is an octal-voltage microprocessor supervisor IC designed for complex multivoltage systems. It monitors eight input voltages (IN1–IN8), provides a single active-low RESET output asserting on any undervoltage or manual reset, features capacitor-adjustable reset timeout (min 140ms), internal 30µA pullups on all open-drain outputs, and operates across -40°C to +125°C. It is used in high-reliability server power sequencing.

For engineers reviewing the MAX16007BTP+ datasheet, MAX16007BTP+ pinout, MAX16007BTP+ application, or MAX16007BTP+ equivalent, key selection criteria include its 8-channel monitoring capability, fixed/adjustable threshold support (e.g., 3.3V, 1.8V, down to 0.4V), watchdog timer with 1.6s typical timeout, margin enable function, and TQFN-24 package compatibility with industrial temperature range.

Technical Context

The MAX16007BTP+ implements a centralized supervisory architecture with independent voltage comparators per channel, a shared reset logic block that asserts RESET low when any monitored voltage falls below its threshold or MR is pulled low, and a watchdog timer that triggers RESET after 1.6s (typ) of WDI inactivity. Its SRT pin enables precise reset timeout tuning via external capacitor.

It integrates tolerance-select logic (5% or 10% thresholds via TOL pin), margin testing support (MARGIN pin deasserts all outputs), and guaranteed correct logic state operation down to VCC = 1V. All outputs are open-drain with internal 30µA pullups, eliminating external resistors while supporting up to 5.5V drive voltage.

Key Specifications

Pinout & Package

MAX16007BTP+ is housed in a 24-pin TQFN package (4mm × 4mm, 0.5mm pitch) with exposed pad (EP) internally connected to GND for thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16006BTP+, MAX16007BTP+ trades fixed low-voltage rail support (0.9V/1.2V) for broader adjustability across six channels-critical for custom or evolving power architectures-while retaining identical package, timing, and feature set.

Availability

MAX16007BTP+ 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 MAX16007BTP+ 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, computing, and communications applications.

The MAX16000–MAX16007 family was engineered specifically for high-density multivoltage system supervision-replacing discrete solutions with integrated, configurable, and thermally robust supervisors for servers, storage, and telecom infrastructure.

FAQ

What is the function of the MARGIN pin on the MAX16007BTP+?

The MARGIN pin on the MAX16007BTP+ is an active-low input that, when pulled low, deasserts all outputs (drives them high) regardless of monitored voltage states. This enables safe margin testing during production or qualification, allowing engineers to temporarily disable supervision without altering power rail behavior. The MAX16007BTP+ guarantees this function operates correctly across its full -40°C to +125°C temperature range.

Does the MAX16007BTP+ support adjustable reset timeout, and how is it configured?

Yes, the MAX16007BTP+ supports adjustable reset timeout via the SRT pin. Connecting an external capacitor from SRT to GND sets the timeout period using the formula: Reset Timeout (s) = 2.06 × 10⁶ Ω × CSRT (F). For the minimum 140ms timeout, SRT is connected to VCC. The MAX16007BTP+ datasheet specifies guaranteed min/max values across temperature, and the internal ramp current (460–740nA) and threshold (1.173–1.293V) define timing accuracy.

How many voltage inputs does the MAX16007BTP+ monitor, and what threshold options are available?

The MAX16007BTP+ monitors eight voltage inputs (IN1–IN8). Its MAX16007B variant provides fixed thresholds on IN1 (3.3V) and IN4 (1.8V), with adjustable thresholds on IN2, IN3, and IN5–IN8-supporting down to 0.4V. Threshold tolerance (5% or 10%) is selected via the TOL pin. This configuration balances standard rail support with design flexibility for custom or evolving power architectures.

What is the operating temperature range and supply voltage range for the MAX16007BTP+?

The MAX16007BTP+ operates from -40°C to +125°C and accepts a supply voltage (VCC) from 1.0V to 5.5V. Crucially, its digital logic remains functional down to VCC = 1V, ensuring reliable reset assertion even during deep brownout conditions. This wide VCC range and extended temperature rating make the MAX16007BTP+ suitable for harsh industrial and automotive-adjacent environments.

Does the MAX16007BTP+ include a watchdog timer, and what is its timeout behavior?

Yes, the MAX16007BTP+ includes a watchdog timer with a guaranteed timeout range of 1.12s to 2.40s (typical 1.6s). It enters a 54s startup delay after reset assertion before beginning counting. The timer clears on any WDI edge transition and asserts RESET if WDI remains static beyond timeout. Leaving WDI unconnected disables the watchdog. The MAX16007BTP+ uses a 400nA open-state detector, requiring WDI drivers with <200nA leakage.