Analog Devices Inc./Maxim Integrated MAX6710QUT+T

Overview

MAX6710QUT+T from Analog Devices is a quad-voltage microprocessor supervisory IC in a 6-pin SOT23 package, monitoring up to four supply rails-including adjustable thresholds down to 0.62V-with ±1.5% accuracy, 140ms min reset timeout, and open-drain active-low RESET output. It powers from VCC (2.0–5.5V), supports industrial temperature range (−40°C to +105°C), and is used in servers, networking equipment, and high-end printers for reliable power-on reset and undervoltage detection.

For engineers reviewing the MAX6710QUT+T datasheet, MAX6710QUT+T pinout, MAX6710QUT+T application, or MAX6710QUT+T equivalent, this page delivers verified specifications, exact pin functions, real-world use cases, and validated alternative parts-enabling rapid selection, schematic integration, and BOM validation without cross-referencing external documents.

Technical Context

The MAX6710QUT+T implements four independent precision voltage comparators with a shared 0.62V internal reference and configurable resistor-divider inputs for adjustable thresholds. Its architecture includes built-in 0.3% threshold hysteresis and immunity to transients ≤100µs at ≥10mV overdrive, ensuring noise robustness in noisy power environments.

Unlike the MAX6700 series, the MAX6710QUT+T uses a dedicated VCC pin (not monitored) for device power and asserts RESET low for a guaranteed minimum 140ms after all monitored voltages recover-making it suitable for microprocessor reset sequencing rather than simple voltage detection.

Key Specifications

Pinout & Package

Package: 6-pin SOT23-6 (U6+1 outline), footprint-compatible with industry-standard 0.95mm pitch land pattern (90-0175).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX6710AUT+T and TPS3808G33DBVR, the MAX6710QUT+T uniquely supports four fully adjustable thresholds with VCC-powered operation - enabling compact, flexible supervision of heterogeneous voltage domains without external components or layout compromises.

Availability

MAX6710QUT+T is available at Aetrix Electronics and suitable for servers, industrial PLCs, telecom line cards, and high-end printers requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for MAX6710QUT+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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets since 1965.

The MAX6710QUT+T belongs to the MAX6700/MAX6710 family of ultra-small, low-power supervisory ICs designed specifically for space-constrained, multi-rail embedded systems demanding precision voltage monitoring and deterministic reset timing.

FAQ

What is the power supply configuration for MAX6710QUT+T?

The MAX6710QUT+T is powered exclusively from its VCC pin (Pin 2), which accepts 2.0V to 5.5V. Unlike other MAX6710 variants, VCC is not monitored - it serves only as the device's power source. This decouples supervisor operation from monitored supply stability, ensuring reliable reset generation even during INx rail faults. The MAX6710QUT+T draws just 35µA typical supply current.

How does the 140ms reset timeout work in MAX6710QUT+T?

In the MAX6710QUT+T, the RESET output remains asserted low for a minimum of 140ms after all four monitored inputs (IN1, IN3, IN4, and VCC-derived reference) rise above their respective thresholds. This timeout is internally generated and guaranteed over −40°C to +105°C. It ensures sufficient hold time for microprocessors and FPGAs to complete power-on initialization before release - no external capacitor or timing component is required.

Can MAX6710QUT+T monitor a 1.2V supply rail?

Yes, the MAX6710QUT+T can monitor a 1.2V rail using its adjustable inputs (IN1, IN3, or IN4). With an internal 0.62V threshold and ±1.5% accuracy, a simple two-resistor divider (e.g., R1 = 93kΩ, R2 = 100kΩ) scales 1.2V down to 0.62V at the input. Input bias current ≤ ±0.4µA ensures <1% error with R2 ≤ 100kΩ, making 1.2V supervision accurate and straightforward.

Is an external pullup resistor required for the RESET output of MAX6710QUT+T?

No external pullup is required for the MAX6710QUT+T's open-drain RESET output in most cases. It features a 10µA internal pullup to VCC, sufficient to drive standard CMOS inputs (e.g., 3.3V or 5V logic) directly. An external pullup is only needed when interfacing with logic families operating at voltages outside the VCC range (e.g., 1.8V IO with 3.3V VCC), and even then, the internal pullup prevents reverse current flow.

What is the maximum transient immunity of MAX6710QUT+T on monitored inputs?

The MAX6710QUT+T rejects short-duration supply transients up to 100µs in width when the overdrive exceeds 10mV - as confirmed by the "Maximum IN_ Transient Duration vs. Reset Threshold Overdrive" graph in the datasheet. This immunity is achieved through internal filtering and comparator hysteresis, preventing false resets during switching noise, relay bounce, or hot-swap events without compromising response speed to genuine undervoltage conditions.