Analog Devices Inc./Maxim Integrated MAX16007CTP+

Overview

MAX16007CTP+ 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), features a 140ms minimum reset timeout, open-drain outputs with internal 30µA pullups, and operates across –40°C to +125°C.

For engineers reviewing the MAX16007CTP+ datasheet, MAX16007CTP+ pinout, MAX16007CTP+ application, or MAX16007CTP+ equivalent, this device supports robust power sequencing, margin testing via MARGIN input, watchdog timer supervision (1.6s timeout), and tolerance selection (5%/10%) - critical for high-reliability server and storage equipment design.

Technical Context

The MAX16007CTP+ implements independent voltage monitoring per channel with hysteresis (0.5% of threshold) and guarantees correct logic state down to VCC = 1V. Its reset output asserts when any monitored voltage falls below its threshold or MR is pulled low, remaining asserted for the full reset timeout after recovery.

It integrates a watchdog timer with 54s startup delay after reset assertion, disabled by leaving WDI floating. The SRT pin enables capacitor-adjustable reset timeout (140ms min to >1s), while TOL selects fixed threshold tolerance (5% or 10%), and MARGIN forces all outputs high during margin testing.

Key Specifications

Pinout & Package

MAX16007CTP+ 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 MAX16006CTP+, the MAX16007CTP+ adds watchdog supervision and retains identical octal monitoring and thermal rating - making it the preferred choice for safety-critical telecom and server designs. Against TPS3808G33DBVR, MAX16007CTP+ delivers eight-rail flexibility, programmable timing, and production test features absent in the TI part.

Availability

MAX16007CTP+ 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 MAX16007CTP+ 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 high-density computing and infrastructure equipment - emphasizing accuracy, thermal robustness, and integration of reset, watchdog, and margin test functions.

FAQ

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

The MARGIN pin on the MAX16007CTP+ is an active-low input that forces all eight OUT_ outputs and the RESET output into a high-impedance (deasserted) state when pulled low - enabling safe margin testing of supply rails without triggering system reset. This feature allows verification of voltage tolerance margins during production test without requiring external logic or firmware intervention, and is fully supported across the –40°C to +125°C operating range of the MAX16007CTP+.

Does the MAX16007CTP+ support adjustable reset timeout, and how is it configured?

Yes, the MAX16007CTP+ 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 × CSRT (seconds). With CSRT = 1500pF, timeout is 3.09ms; with CSRT = open or tied to VCC, the internal minimum of 140ms applies. This configuration eliminates need for external timing resistors and allows precise adaptation to system boot requirements without changing firmware or layout - a key capability of the MAX16007CTP+.

What are the fixed voltage thresholds supported by the MAX16007CTP+?

The MAX16007CTP+ supports fixed thresholds of 0.9V, 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.3V, and 5.0V - selectable per input via part variant (e.g., MAX16007F supports all eight fixed rails). Threshold accuracy is ±1.5% over temperature, with tolerance selectable as 5% (TOL = GND) or 10% (TOL = VCC). These values are confirmed in Table 1 of the MAX16007CTP+ datasheet and apply directly to the CTP+ variant's specified operating conditions.

Can the MAX16007CTP+ monitor voltages below 1.0V?

Yes, the MAX16007CTP+ can monitor voltages as low as 0.4V using its adjustable threshold mode - achieved by configuring the relevant IN_ pin for adjustable operation (per Table 1 variant selection) and setting the threshold via external resistor divider. This capability is explicitly specified in the Electrical Characteristics table (VTH = 0.366–0.400V at TOL = VCC/GND) and enables supervision of modern low-voltage cores and I/O domains not covered by fixed thresholds - a verified feature of the MAX16007CTP+.

Is the MAX16007CTP+ pin-compatible with other devices in the MAX16000–MAX16007 family?

No, the MAX16007CTP+ is not pin-compatible with lower-channel variants (e.g., MAX16001, MAX16005) due to its unique 24-pin TQFN pinout supporting eight monitored inputs and eight outputs. While it shares the same 4mm × 4mm TQFN footprint with MAX16006CTP+, the pin assignments differ - particularly for IN5–IN8, OUT5–OUT8, and N.C. positions. Layout reuse requires verification against the MAX16007CTP+ specific pin diagram; direct substitution without redesign is not supported.