Analog Devices Inc./Maxim Integrated MAX16060ETE+

Overview

The MAX16060ETE+ from Maxim Integrated is a 1% accurate quad-voltage microprocessor supervisor in a 16-pin 4mm × 4mm thin QFN package, monitoring four independent supply rails (e.g., 3.3V, 2.5V, 1.8V, and adjustable down to 0.4V) with ±1% threshold accuracy over –40°C to +125°C. It provides four open-drain OUT_ outputs, one active-low RESET output, manual reset (MR), watchdog timer (1.6s typical timeout), and margin enable functionality - used in multivoltage ASIC power sequencing and server board supervisory systems.

For engineers reviewing the MAX16060ETE+ datasheet, MAX16060ETE+ pinout, MAX16060ETE+ application, or MAX16060ETE+ equivalent, this page delivers verified specifications including 140ms minimum reset timeout, internal 30µA pullups on all outputs, TOL-selectable 5%/10% threshold tolerance, guaranteed RESET assertion down to VCC = 1V, and watchdog startup delay of 54s - critical for automotive and industrial embedded power integrity validation.

Technical Context

The MAX16060ETE+ implements independent voltage comparators per monitored rail, each with hysteresis (0.5% of threshold) and configurable thresholds via external resistor dividers for adjustable inputs. Its reset logic combines OR-ed fault detection across all four IN_ inputs and MR, holding RESET asserted until all voltages exceed thresholds and MR is deasserted, with timeout governed by internal 140ms minimum or external capacitor on SRT pin.

Watchdog operation uses edge-triggered reset clearing with 54s startup window; WDI unconnected disables it. All outputs are open-drain with internal 30µA pullups to VCC and tolerate external pullup voltages up to 5.5V, enabling interoperability with mixed-supply logic domains without external resistors.

Key Specifications

Pinout & Package

MAX16060ETE+ is housed in a 16-pin thin QFN package (4mm × 4mm, exposed pad), optimized for thermal dissipation and high-density PCB layouts. The EP pad must be soldered to ground plane for thermal management but is not an electrical GND connection.

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 MAX16060ETE+ uniquely balances quad-rail monitoring, ±1% accuracy, adjustable thresholds, integrated watchdog, and minimal external components - making it optimal for cost-sensitive, space-constrained multivoltage systems needing deterministic reset behavior without software overhead.

Availability

MAX16060ETE+ is available at Aetrix Electronics and suitable for server power sequencing, automotive ADAS controllers, industrial PLC backplanes, and networking switch ASICs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX16060ETE+ 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 computing applications, emphasizing reliability, accuracy, and integration.

The MAX16060 series belongs to Maxim's µP supervisor product line, engineered specifically for high-accuracy, multivoltage system monitoring in harsh environments where supply rail integrity directly impacts functional safety and uptime.

FAQ

What is the minimum VCC voltage at which MAX16060ETE+ guarantees RESET assertion?

The MAX16060ETE+ guarantees RESET remains asserted down to VCC = 1.0V, ensuring fail-safe behavior during severe brownout or battery-cranking conditions. This specification is validated across –40°C to +125°C and allows the device to hold system reset even as main supply collapses - a critical feature for automotive and industrial applications where supply instability is common. The MAX16060ETE+ continues monitoring and asserting RESET until VCC recovers above 1.62V (UVLO rising threshold).

How does the TOL pin affect threshold accuracy and hysteresis in MAX16060ETE+?

The TOL pin on MAX16060ETE+ selects between 5% (TOL = GND) and 10% (TOL = VCC) total threshold tolerance, directly impacting both initial accuracy and hysteresis magnitude. For example, a 3.3V threshold becomes 3.069V–3.135V at 5% tolerance versus 2.904V–2.970V at 10%. Hysteresis remains fixed at 0.5% of threshold regardless of TOL setting. This dual-mode selection allows designers to prioritize precision (5%) in clean environments or noise immunity (10%) in electrically noisy industrial settings - all without changing bill of materials.

Can MAX16060ETE+ monitor a 1.2V supply rail, and how is it configured?

Yes, MAX16060ETE+ can monitor a 1.2V rail using its adjustable input capability (e.g., IN3 or IN4 configured as ADJ in Table 1). With TOL = GND, the internal threshold is 0.394V; a resistor divider (R1/R2 = (1.2V / 0.394V) – 1 ≈ 2.05) scales the 1.2V input down to 0.394V at the comparator input. The device supports thresholds as low as 0.4V, and the 1% accuracy applies to the scaled threshold - enabling precise 1.2V supervision with <12mV absolute error across temperature. No additional components beyond two resistors are required.

What happens to MAX16060ETE+ outputs when the MARGIN pin is pulled low?

When the MARGIN pin of MAX16060ETE+ is pulled low, all four OUT_ outputs and the RESET output are immediately deasserted (driven high-impedance, allowing external pullups to set logic-high state), regardless of actual input voltage conditions. This function is designed for production margin testing - enabling verification of downstream logic response to "good" rail states without altering actual supply voltages. The deassertion occurs within 50µs (tMD), and outputs remain deasserted as long as MARGIN is held low, providing deterministic test control without affecting supervisor internal state.

Is the watchdog timer in MAX16060ETE+ enabled by default, and how is it disabled?

The watchdog timer in MAX16060ETE+ is enabled by default and requires no configuration. It starts its 54s startup delay upon power-up and begins counting after the first WDI edge. To disable it, leave the WDI pin unconnected - the internal 400nA detector recognizes the floating state and inhibits watchdog operation. Connecting WDI to a static logic level (high or low) will cause timeout assertion; only true high-impedance disconnection disables it. This design prevents accidental activation while allowing simple hardware disable without firmware or external components.