Analog Devices Inc./Maxim Integrated MAX6710LUT+T

Overview

MAX6710LUT+T from Analog Devices is a quad-voltage microprocessor supervisory IC in SOT23-6 package that monitors four supply rails-including adjustable thresholds on IN1 and IN4, fixed 3.3V on IN2, and fixed 1.8V on IN3-with ±5% tolerance. It asserts an active-low open-drain RESET output when any monitored voltage drops below its threshold and holds reset for ≥140ms after all voltages recover. Used in servers, networking equipment, and industrial controllers to ensure reliable power-on sequencing and brownout protection.

For engineers reviewing the MAX6710LUT+T datasheet, MAX6710LUT+T pinout, MAX6710LUT+T application, or MAX6710LUT+T equivalent, key selection criteria include factory-trimmed 3.3V/1.8V thresholds, dual adjustable inputs down to 0.62V, 140ms reset timeout, 35μA quiescent current, and guaranteed operation from −40°C to +105°C in a space-constrained SOT23-6 footprint.

Technical Context

The MAX6710LUT+T implements four independent precision comparators with a shared 0.62V internal reference and built-in 0.3% threshold hysteresis to reject noise. IN2 serves as both monitored input and primary power source (1.0V–5.5V), while IN1 and IN4 are adjustable via external resistor dividers, and IN3 is factory-set to 1.8V ±5%.

Its reset logic uses a NOR-gated output with integrated timeout circuitry: RESET remains low for ≥140ms after all inputs exceed their thresholds, ensuring stable processor initialization. The open-drain RESET output features a 10μA internal pullup to IN2 and remains valid as long as IN1 or IN2 ≥1V-enabling robust operation during partial supply collapse.

Key Specifications

Pinout & Package

Package: 6-pin SOT23-6, surface-mount, RoHS-compliant, footprint per 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 MAX6710LUT+T, MAX6710KUT+T trades threshold precision for broader tolerance margin, while TPS3808G33DBVR reduces channel count and flexibility to meet simpler triple-rail needs-neither offers pin-compatible replacement nor identical feature set.

Availability

MAX6710LUT+T is available at Aetrix Electronics and suitable for telecommunications infrastructure, industrial PLCs, and network switch designs requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX6710LUT+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.

The MAX6710LUT+T belongs to the MAX6700/MAX6710 family of ultra-small, low-power supervisory circuits designed specifically for space-constrained, multisupply embedded systems demanding precision voltage monitoring and robust reset timing.

FAQ

What is the exact reset timeout duration specified for MAX6710LUT+T?

The MAX6710LUT+T guarantees a minimum reset timeout period of 140ms after all monitored voltages rise above their thresholds. Typical timeout is 200ms, with a maximum of 280ms over temperature. This duration is internally generated and does not require external components, ensuring consistent reset hold time across voltage and temperature variations in the MAX6710LUT+T.

Which supply rails does MAX6710LUT+T monitor, and how are they configured?

The MAX6710LUT+T monitors four rails: IN1 and IN4 are adjustable inputs referenced to a 0.62V internal comparator threshold; IN2 is factory-trimmed to 3.3V ±5%; and IN3 is factory-trimmed to 1.8V ±5%. No external resistors are needed for IN2 or IN3, while IN1 and IN4 require external resistor dividers to scale higher voltages to the 0.62V reference in the MAX6710LUT+T.

Can MAX6710LUT+T operate if only IN2 is powered, and what is the minimum valid voltage?

Yes, MAX6710LUT+T operates from IN2 alone, which serves as both monitored input and power source. The RESET output remains valid as long as IN2 (or IN1) is ≥1.0V over the full −40°C to +105°C range. Below 1.0V, RESET behavior is unspecified. This allows the MAX6710LUT+T to assert reset during partial supply collapse while maintaining functional integrity down to 1V.

What is the input bias current on the adjustable pins (IN1 and IN4) of MAX6710LUT+T?

The MAX6710LUT+T specifies a maximum input bias current of ±0.2μA on adjustable inputs IN1 and IN4 (±0.4μA on IN1 under certain conditions). This low leakage enables use of high-value resistor dividers (e.g., R2 = 100kΩ) with <1% error contribution, making the MAX6710LUT+T suitable for precision monitoring without loading sensitive supply nodes.

Does MAX6710LUT+T support manual reset functionality, and how is it implemented?

The MAX6710LUT+T does not integrate a dedicated manual reset pin, but manual reset can be added externally by connecting a pushbutton between an adjustable input (e.g., IN4) and ground. Pressing the button pulls the input below its threshold, triggering RESET. The switch must remain open for ≥140ms to deassert RESET. No debounce circuitry is required due to the MAX6710LUT+T's inherent glitch immunity.