Analog Devices Inc./Maxim Integrated MAX6710MUT+T

Overview

MAX6710MUT+T from Analog Devices is a quad-voltage microprocessor supervisory IC that monitors four system supply rails-including 5.0V, 3.3V, 2.5V, and one adjustable input-and asserts a single active-low RESET output if any falls below its preset threshold. It features factory-trimmed -10% tolerance thresholds, 140ms minimum reset timeout, 35μA supply current, and operates from -40°C to +105°C in a 6-pin SOT23 package for embedded power integrity in space-constrained systems.

For engineers reviewing the MAX6710MUT+T datasheet, MAX6710MUT+T pinout, MAX6710MUT+T application, or MAX6710MUT+T equivalent, key selection criteria include quad-supply monitoring capability, fixed/adjustable threshold flexibility, guaranteed industrial temperature operation, open-drain RESET with internal 10μA pullup to IN2, and immunity to short-duration supply transients.

Technical Context

The MAX6710MUT+T implements four independent precision comparators referenced to a stable 0.62V bandgap, each with 0.3% threshold hysteresis to suppress noise-induced false resets. Its architecture integrates internally trimmed resistor-divider networks for fixed thresholds (5.0V, 3.3V, 2.5V) and direct comparator inputs for adjustable monitoring down to 0.62V.

RESET assertion is synchronized across all monitored inputs via a NOR gate; deassertion follows a fixed 140ms (min) timeout after all voltages exceed their thresholds-distinct from the MAX6700's 5μs propagation delay. Power is derived solely from IN2 (3.3V), which is both supply and monitored rail, and RESET remains valid as long as IN1 or IN2 ≥ 1V.

Key Specifications

Pinout & Package

Package: 6-pin SOT23-6, surface-mount, RoHS-compliant, footprint per outline 21-0058.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6710MUT+T, MAX6710HUT+T offers improved threshold precision at the cost of reduced undervoltage headroom, while TPS3808G33DBVR provides longer timeout and wider supply range but lacks quad monitoring and adjustable thresholds-making MAX6710MUT+T optimal for compact, multi-rail industrial designs requiring guaranteed -10% margin.

Availability

MAX6710MUT+T is available at Aetrix Electronics and suitable for telecom power systems, industrial PLC controllers, network switch ASIC power, and medical imaging data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX6710MUT+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

Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.

The MAX6700/MAX6710 product line delivers ultra-small, low-power supervisory circuits for multi-rail embedded systems where board space, power budget, and industrial temperature reliability are critical design constraints.

FAQ

What is the exact reset timeout duration for MAX6710MUT+T?

The MAX6710MUT+T guarantees a minimum reset timeout period of 140ms after all monitored voltages rise above their thresholds, with typical values of 200ms and a maximum of 280ms over temperature. This fixed timeout is implemented via an internal timer and does not require external components, ensuring consistent μP initialization timing across all operating conditions for the MAX6710MUT+T.

Which supply rails does MAX6710MUT+T monitor, and how are they configured?

The MAX6710MUT+T monitors four supply rails: IN1 = 5.0V (-10%), IN2 = 3.3V (-10%), IN3 = 2.5V (-10%), and IN4 = adjustable (0.62V reference). Configuration is factory-set-no external resistors needed for fixed thresholds. The IN4 pin accepts an external resistor divider to scale higher voltages (e.g., 1.8V, 1.2V) down to the 0.62V comparator input, making MAX6710MUT+T adaptable to diverse multi-rail architectures.

Can MAX6710MUT+T operate if IN2 drops below 2.0V?

Yes-the MAX6710MUT+T maintains valid RESET output functionality as long as IN1 or IN2 remains ≥1.0V, even if VCC is absent (since MAX6710 variants derive power from IN2, not VCC). This allows supervised operation during partial power-up sequences where IN2 recovers first. Below 1.0V on both IN1 and IN2, RESET becomes undefined; thus, MAX6710MUT+T supports brownout detection with graceful degradation down to 1V.

Does MAX6710MUT+T require an external pullup resistor on the RESET pin?

No-MAX6710MUT+T includes a weak 10μA internal pullup to IN2, sufficient to drive standard 3.3V CMOS logic inputs without external components. An external pullup is only needed when interfacing with logic supplies outside the IN2 voltage range (e.g., 5V or 1.8V systems), and even then, the internal pullup prevents reverse current flow. This simplifies layout and reduces BOM count for the MAX6710MUT+T in most embedded applications.

How does MAX6710MUT+T handle short-duration supply transients?

The MAX6710MUT+T is specifically designed to ignore transients ≤200µs in duration when the monitored voltage dips no more than 50mV below threshold-verified by glitch immunity characterization. This immunity stems from internal filtering and comparator hysteresis (0.3% of threshold), preventing false resets caused by switching noise or load-step artifacts. As a result, MAX6710MUT+T delivers robust supervision in electrically noisy environments like motor drives or RF power stages.