Analog Devices Inc./Maxim Integrated MAX6382XR16D3+T

Overview

MAX6382XR16D3+T from Maxim Integrated is a push-pull active-high microprocessor supervisory circuit with factory-set 1.58V reset threshold, 140ms minimum reset timeout, and guaranteed operation down to VCC = 1.0V. It monitors single-supply voltage in low-power embedded systems and asserts RESET high during brownout or power-up sequencing. Designed for space-constrained applications, it consumes only 3μA at +1.8V and operates across –40°C to +125°C.

For engineers reviewing the MAX6382XR16D3+T datasheet, MAX6382XR16D3+T pinout, MAX6382XR16D3+T application, or MAX6382XR16D3+T equivalent, key selection criteria include its active-high push-pull output logic, precise ±2.5% threshold accuracy over temperature, immunity to negative-going VCC transients, and compatibility with 3-pin SC70 footprint constraints.

Technical Context

The MAX6382XR16D3+T implements a precision bandgap-based voltage comparator with internal 1.58V reference and a monolithic timer for deterministic 140ms reset assertion after VCC recovery. Its reset output remains valid and correctly asserted even as VCC drops to 1.0V, enabling reliable μP initialization in deep brownout conditions.

This device belongs to the MAX6381–MAX6390 family of single-supply supervisors and uses BiCMOS process technology. It lacks manual reset (MR) or auxiliary RESET IN inputs-features reserved for MAX6384–MAX6390 and MAX6387–MAX6389 variants-and is strictly a fixed-threshold, single-monitoring-channel solution.

Key Specifications

Pinout & Package

MAX6382XR16D3+T is housed in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), with pins arranged in a single row. The package supports reflow soldering per JEDEC J-STD-020 (peak 260°C) and has θJA = 340.4°C/W on multilayer board.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microprocessor reset applications.

Compared with MAX809TRD3+T and TPS3123E15DBVR, MAX6382XR16D3+T offers superior thermal accuracy (±2.5% vs. ±3% or unqualified), active-high logic alignment with modern low-voltage MCUs, and AEC-Q100 qualification-making it optimal for automotive and industrial designs demanding deterministic reset behavior under stress.

Availability

MAX6382XR16D3+T is available at Aetrix Electronics and suitable for industrial PLC I/O modules, automotive body control units, portable medical sensor nodes, smart energy meter MCU subsystems, and critical μP power monitoring requiring stable component supply across extended temperature ranges.

Supply support for MAX6382XR16D3+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) designs precision analog and mixed-signal ICs for demanding industrial, automotive, and computing applications, with emphasis on low-power, high-reliability solutions.

MAX6382XR16D3+T belongs to the MAX6381–MAX6390 family of ultra-low-power μP supervisors engineered for single-rail voltage monitoring in space- and power-constrained embedded systems where deterministic reset timing and thermal stability are critical.

FAQ

What is the exact reset threshold voltage of MAX6382XR16D3+T and how tightly is it specified?

The MAX6382XR16D3+T has a factory-set nominal reset threshold of +1.58V, with guaranteed accuracy of ±2.5% over the full operating temperature range of –40°C to +125°C. This means the actual threshold falls between +1.54V and +1.61V at any temperature within that range, ensuring robust brownout detection for 1.8V systems without external trimming components.

Does MAX6382XR16D3+T support manual reset functionality?

No, MAX6382XR16D3+T does not include a manual reset (MR) input. It is a basic single-supply supervisor with only VCC monitoring and active-high push-pull RESET output. Manual reset capability is available only in MAX6384–MAX6390 variants (e.g., MAX6384XR16D3+T), which add pin 3 as MR in 4-pin SC70 packages.

What is the minimum supply voltage at which MAX6382XR16D3+T guarantees correct RESET output logic state?

MAX6382XR16D3+T guarantees valid RESET output logic state down to VCC = 1.0V. Below this voltage, the internal circuitry cannot maintain defined output behavior. This specification ensures reliable μP initialization during deep brownout events where other supervisors may float or oscillate.

Can MAX6382XR16D3+T be used in automotive applications?

Yes, MAX6382XR16D3+T is AEC-Q100 qualified for automotive use. Its –40°C to +125°C operating temperature range, ±2.5% threshold accuracy over temperature, and robust negative-going transient immunity make it suitable for body control modules, infotainment power domains, and other non-safety-critical automotive subsystems.

What package type and footprint does MAX6382XR16D3+T use, and is it RoHS-compliant?

MAX6382XR16D3+T is supplied in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208) with lead(Pb)-free/RoHS-compliant finish indicated by the "+" suffix. The package measures 1.25mm × 0.8mm × 0.5mm and supports standard reflow soldering profiles per JEDEC J-STD-020.