Analog Devices Inc./Maxim Integrated MAX16007CTP+T

Overview

MAX16007CTP+T 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), featuring a 140ms minimum reset timeout, watchdog timer with 1.6s typical timeout, and open-drain outputs with internal 30μA pullups. It is used in high-reliability multivoltage systems such as telecom line cards and server baseboards.

For engineers reviewing the MAX16007CTP+T datasheet, MAX16007CTP+T pinout, MAX16007CTP+T application, or MAX16007CTP+T equivalent, key selection considerations include its eight-channel voltage monitoring capability, capacitor-adjustable reset timeout, integrated watchdog with 54s startup delay, tolerance-select input for ±5%/±10% thresholds, and margin enable function for production testing.

Technical Context

The MAX16007CTP+T implements a hierarchical supervision architecture: each of its eight INx inputs feeds an independent comparator with hysteresis (0.5% V_TH), feeding into a wired-OR logic structure that asserts the active-low RESET output when any monitored voltage falls below its threshold or MR is pulled low. The watchdog timer monitors WDI transitions and triggers RESET after 1.12–2.40s timeout, with a guaranteed 35–72s startup delay following reset deassertion.

Its digital control interface includes three dedicated pins-MR (active-low manual reset), MARGIN (active-low output disable), and TOL (threshold tolerance select)-all with CMOS-compatible input thresholds (V_IL = 0.3×V_CC, V_IH = 0.7×V_CC) and internal pullups (12–28kΩ). All outputs are open-drain with internal 30μA pullups and support external drive up to 5.5V.

Key Specifications

Pinout & Package

MAX16007CTP+T is housed in a 24-pin TQFN package (4mm × 4mm, 0.5mm pitch) with exposed pad (EP) internally connected to GND. Pin 1 is located at top-left corner (marking dot adjacent), and pin numbering proceeds counterclockwise.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16006CTP+T and TPS389033DSGT, the MAX16007CTP+T uniquely delivers eight-rail supervision plus integrated watchdog with startup delay-enabling both power integrity and runtime processor health monitoring in a single device, eliminating need for supplemental watchdog ICs or additional supervision logic.

Availability

MAX16007CTP+T is available at Aetrix Electronics and suitable for telecom infrastructure, server baseboard design, and industrial embedded control applications requiring stable component supply, long-term lifecycle support, and guaranteed -40°C to +125°C operation.

Supply support for MAX16007CTP+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 MAX16000–MAX16007 family was engineered specifically for multivoltage system supervision in space-constrained, high-reliability platforms-emphasizing integration of monitoring, reset timing, watchdog, and test features into minimal footprint packages.

FAQ

What is the function of the MARGIN pin on the MAX16007CTP+T?

The MARGIN pin on the MAX16007CTP+T is an active-low input that, when pulled low, forces all eight OUTx outputs and the RESET output into a high-impedance (deasserted) state-regardless of monitored voltage levels. This enables safe voltage margin testing during production without triggering false resets. The MAX16007CTP+T guarantees clean deassertion within 50µs of MARGIN activation, and the pin features an internal 20kΩ pullup resistor to V_CC.

Does the MAX16007CTP+T support adjustable voltage thresholds for all eight inputs?

The MAX16007CTP+T supports adjustable thresholds on selected inputs depending on its factory-configured variant (e.g., MAX16007F provides eight fixed thresholds: 5.0V, 3.3V, 3.0V, 2.5V, 1.8V, 1.5V, 1.2V, and 0.9V). Adjustable thresholds (down to 0.4V) are available on specific INx pins per variant-confirmed in Table 1 of the datasheet-but not universally across all eight inputs in every version. The MAX16007CTP+T variant uses fixed thresholds unless explicitly ordered as an "ADJ"-suffixed option.

How is the reset timeout period set on the MAX16007CTP+T?

The reset timeout on the MAX16007CTP+T is set via the SRT pin: connecting SRT to V_CC selects the internal minimum timeout of 140ms; connecting an external capacitor (CSRT) from SRT to GND adjusts the timeout according to t_RP = 2.06 × 10⁶ Ω × C_SRT. For example, a 1500pF capacitor yields ~3.09ms timeout. The SRT pin has a 1.235V threshold and 460–740nA ramp current, enabling precise, temperature-stable timing without external RC components.

Can the MAX16007CTP+T be used in automotive applications?

The MAX16007CTP+T is specified for -40°C to +125°C operation and meets key automotive stress requirements, but it is not AEC-Q100 qualified. Only specific variants-MAX16001ATE/V+ and MAX16001DTE/V+-carry AEC-Q100 qualification. Therefore, the MAX16007CTP+T is suitable for under-hood industrial or extended-temperature commercial applications but not for safety-critical automotive ECUs unless validated per OEM-specific requirements.

What is the maximum sink current supported by the RESET output of the MAX16007CTP+T?

The RESET output of the MAX16007CTP+T is an open-drain driver with guaranteed VOL ≤ 0.30V at ISINK = 10mA (V_CC = 3.3V), 6mA (V_CC = 2.5V), or 50µA (V_CC = 1.2V). Its absolute maximum rating allows ±20mA continuous sink current. The internal 30µA pullup ensures valid logic-high level when not actively driven, eliminating need for external pullup resistors in most system interfaces.