Analog Devices Inc./Maxim Integrated MAX16060BTE+

Overview

MAX16060BTE+ from Maxim Integrated is a 1% accurate quad-voltage microprocessor supervisor IC in a 16-pin 4mm × 4mm thin QFN package. It monitors four independent supply rails (e.g., 3.3V, adjustable, adjustable, and 1.8V per Table 1), provides open-drain outputs with internal 30µA pullups, asserts RESET when any monitored voltage drops below its threshold (down to 0.394V), and includes a 1.6s typical watchdog timer. It serves multivoltage ASIC power sequencing and fault monitoring in industrial servers.

For engineers reviewing the MAX16060BTE+ datasheet, MAX16060BTE+ pinout, MAX16060BTE+ application, or MAX16060BTE+ equivalent, key selection criteria include quad-rail monitoring accuracy (±1%), reset timeout configurability (140ms min or capacitor-adjustable), watchdog startup delay (54s), margin enable functionality, and TOL-selectable 5%/10% threshold tolerance - all validated across –40°C to +125°C.

Technical Context

The MAX16060BTE+ integrates four independent voltage comparators with hysteresis (0.5% V_TH), a shared active-low open-drain RESET output that latches on any undervoltage event, and a watchdog timer with 1.6s typical timeout and 54s startup delay. Its SRT pin supports either fixed 140ms minimum timeout (SRT = V_CC) or external capacitor programming (t_RP = 2.06 MΩ × C_SRT).

All IN_ inputs support fixed thresholds (3.3V/2.5V/1.8V) or adjustable thresholds (0.394V at TOL = GND); the TOL pin selects 5% or 10% input tolerance, and MARGIN enables manual deassertion of all outputs during margin testing. Outputs remain functional down to V_CC = 1V, and WDI disables the watchdog when left floating (400nA detection current).

Key Specifications

Pinout & Package

MAX16060BTE+ uses a 16-pin 4mm × 4mm thin QFN package with exposed pad (EP), rated for –40°C to +125°C operation. The EP is internally connected to GND and must be soldered to the PCB ground plane for thermal management.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TPS3307-33DGNR and ADM1266ACPZ, the MAX16060BTE+ delivers precise quad-rail analog supervision with integrated watchdog, margin enable, and capacitor-tunable reset timing - offering optimal balance of simplicity, accuracy, and feature coverage for embedded multivoltage systems.

Availability

MAX16060BTE+ is available at Aetrix Electronics and suitable for server power sequencing, industrial PLC I/O modules, automotive ADAS domain controllers, and networking line cards requiring stable component supply across extended temperature ranges.

Supply support for MAX16060BTE+ 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 MAX16060BTE+ belongs to Maxim's µP supervisor product line, engineered specifically for high-accuracy, multirail power monitoring in space-constrained, thermally aggressive environments.

FAQ

What voltage thresholds does the MAX16060BTE+ monitor?

The MAX16060BTE+ monitors four voltages configured as 3.3V, adjustable, adjustable, and 1.8V per Table 1 in the datasheet. Adjustable thresholds are typically 0.394V (TOL = GND) or 0.373V (TOL = V_CC), enabling monitoring of supplies down to 0.4V using external resistor dividers. Fixed thresholds include 3.3V (±1%), 2.5V (±1%), and 1.8V (±1%).

How is the reset timeout configured on the MAX16060BTE+?

The MAX16060BTE+ reset timeout is configured via the SRT pin: connecting SRT to V_CC selects the internal minimum timeout of 140ms, while connecting an external capacitor from SRT to GND sets a user-defined timeout using t_RP = 2.06 MΩ × C_SRT. This allows precise alignment with system boot requirements without firmware involvement.

Can the MAX16060BTE+ watchdog timer be disabled?

Yes, the MAX16060BTE+ watchdog timer is disabled by leaving the WDI pin unconnected. An internal 400nA current detects the floating state; connecting WDI to any source/sink exceeding ±200nA may cause unintended timeouts. When enabled, the watchdog asserts RESET after 1.6s typical timeout, with a 54s startup delay to accommodate processor initialization.

What is the purpose of the MARGIN pin on the MAX16060BTE+?

The MARGIN pin on the MAX16060BTE+ is an active-low input that forces all OUT1–OUT4 and RESET outputs into a high (deasserted) state regardless of monitored voltage conditions. This enables safe margin testing - e.g., during production burn-in - where supply voltages are intentionally varied without triggering system resets.

Does the MAX16060BTE+ require external pullup resistors on its outputs?

No, the MAX16060BTE+ includes internal 30µA pullup currents on all open-drain outputs (OUT1–OUT4 and RESET), eliminating the need for external pullups in standard 3.3V logic interfaces. However, an external pullup to any voltage up to 5.5V can override the internal pullup when interfacing with different logic families - reverse current flow is blocked internally.