Analog Devices Inc./Maxim Integrated MAX6462XR46+T

Overview

The MAX6462XR46+T from Maxim Integrated is a precision ultra-low-power voltage detector IC designed for battery and power-supply monitoring in space-constrained portable systems. It features a factory-set 4.6V lower trip threshold (VTH−), 5% internal hysteresis, 17µs propagation delay, and consumes only 1.0µA supply current at 3.6V - enabling reliable reset supervision in Li+-based medical devices and cordless phones.

For engineers reviewing the MAX6462XR46+T datasheet, MAX6462XR46+T pinout, MAX6462XR46+T application, or MAX6462XR46+T equivalent, key selection criteria include its SC70-3 package, active-high push-pull output, -40°C to +125°C operating range, ±2.5% threshold accuracy over temperature, and immunity to short VCC transients without external components.

Technical Context

The MAX6462XR46+T implements a precision bandgap reference and comparator with internally trimmed resistor networks to set its 4.6V VTH− (4.485V min / 4.715V max at -40°C to +125°C) and corresponding VTH+ = VTH− × 1.05. Its output asserts high when VCC falls below VTH− and remains asserted until VCC rises above VTH+, eliminating need for external hysteresis circuitry.

This device belongs to the MAX6461–MAX6466 family's voltage detector subgroup (not µP supervisory), confirmed by its 17µs propagation delay and absence of minimum reset timeout period - distinguishing it from MAX6464–MAX6466 variants which provide 150ms minimum timeout.

Key Specifications

Pinout & Package

MAX6462XR46+T is housed in a 3-pin SC70-3 package with exposed pad (not electrically connected). Pin 1 is OUT (active-high push-pull), Pin 2 is GND, and Pin 3 is VCC. The package is lead-free and RoHS-compliant, rated for reflow per JEDEC J-STD-020.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar voltage detector applications.

Compared with TLV803EB46DBZR and TPS3808G33DBVR, the MAX6462XR46+T uniquely delivers factory-trimmed 4.6V detection with guaranteed 5% hysteresis, 1.0µA supply current, and SC70-3 footprint - making it the only drop-in solution for compact, high-accuracy Li+ full-charge supervision without design compromises.

Availability

MAX6462XR46+T is available at Aetrix Electronics and suitable for portable medical devices, battery-powered instrumentation, and wireless communication modules requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MAX6462XR46+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

Maxim Integrated (now part of Analog Devices) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications markets.

The MAX6462XR46+T belongs to the MAX6461–MAX6466 voltage detector family, engineered specifically for ultra-low-power, high-accuracy battery and power-rail monitoring in size- and energy-constrained portable electronics.

FAQ

What is the exact voltage threshold of the MAX6462XR46+T?

The MAX6462XR46+T has a nominal lower trip threshold (VTH−) of 4.600V at +25°C, with guaranteed limits of 4.485V (min) to 4.715V (max) across the full -40°C to +125°C operating range. Its upper threshold (VTH+) is precisely VTH− × 1.05, resulting in 4.730V nominal and 4.710V–4.951V over temperature.

Does the MAX6462XR46+T require external components to operate?

No, the MAX6462XR46+T requires no external components. Its precision bandgap reference, comparator, trimmed resistor network, and 5% hysteresis circuit are fully integrated. Only VCC, GND, and the load connected to the active-high push-pull OUT pin are needed - eliminating calibration resistors, capacitors, or pull-ups.

How does the MAX6462XR46+T differ from the MAX6464XR46+T?

The MAX6462XR46+T is a voltage detector with 17µs propagation delay and no reset timeout, while the MAX6464XR46+T is a µP supervisory circuit with identical 4.6V threshold but adds a minimum 150ms reset timeout period. They share pinout and package but serve distinct functions: detection vs. guaranteed reset assertion duration.

What is the output drive capability of the MAX6462XR46+T?

The MAX6462XR46+T's active-high push-pull output sources up to 8.0mA at VCC ≥ 4.5V (VOH ≥ 0.8×VCC) and sinks up to 9.0mA (VOL ≤ 0.4V). This allows direct interfacing with standard CMOS and TTL logic inputs without level-shifting or buffering - verified across -40°C to +125°C.

Is the MAX6462XR46+T suitable for automotive applications?

Yes, the MAX6462XR46+T is qualified for -40°C to +125°C operation and specified for use in automotive cabin and infotainment subsystems. Its 4.6V threshold aligns with 12V battery systems' regulated 5V rails, and its transient immunity supports noisy vehicle electrical environments - though AEC-Q200 stress testing data must be obtained separately from Analog Devices.