Analog Devices Inc./Maxim Integrated MAX6382XR16D3

Overview

MAX6382XR16D3 from Maxim Integrated is a single-supply, active-high push-pull microprocessor supervisory circuit with factory-set 1.58V reset threshold and 140ms minimum reset timeout. It monitors VCC in low-voltage systems (1.0V–5.5V), consumes only 3µA at +1.8V, guarantees valid reset output down to VCC = 1V, and is used in portable battery-powered equipment for reliable power-on reset generation.

For engineers reviewing the MAX6382XR16D3 datasheet, MAX6382XR16D3 pinout, MAX6382XR16D3 application, or MAX6382XR16D3 equivalent, key selection criteria include its fixed 1.58V threshold accuracy (±2.5% over –40°C to +125°C), SC70-3 package footprint, active-high push-pull output drive capability, and immunity to negative-going VCC transients up to 35µs at 100mV overdrive.

Technical Context

The MAX6382XR16D3 implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across –40°C to +125°C and 60ppm/°C tempco. Its internal timer generates a guaranteed-minimum 140ms reset assertion after VCC rises above 1.58V.

It features an active-high push-pull RESET output that drives high during reset assertion and low otherwise, with VOL ≤ 0.3V at ISINK = 80µA and VOH ≥ 0.8×VCC at ISOURCE = 150µA (VCC ≥ 1.8V), ensuring robust interface with µP reset inputs.

Key Specifications

Pinout & Package

MAX6382XR16D3 is housed in a 3-pin SC70-3 package (package code X3-2), measuring 1.25mm × 0.85mm × 0.55mm, with gull-wing leads and lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX809TRD3 and TPS3808G16DBVR, the MAX6382XR16D3 uniquely combines active-high push-pull output, guaranteed 1V operation, and 3µA supply current in a 1.25mm × 0.85mm SC70-3 package-enabling direct µP interface without external components in space- and power-constrained designs.

Availability

MAX6382XR16D3 is available at Aetrix Electronics and suitable for portable medical sensors, industrial PLC I/O modules, automotive body control units, and smart home hub power management requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MAX6382XR16D3 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, automotive, and computing markets.

The MAX6381–MAX6390 family was designed specifically for low-voltage, low-power microprocessor supervision in battery-operated and thermally demanding applications, emphasizing precision threshold accuracy, minimal quiescent current, and compact packaging.

FAQ

What is the exact reset threshold voltage of the MAX6382XR16D3?

The MAX6382XR16D3 has a factory-set reset threshold of 1.58V, with guaranteed accuracy of ±2.5% over the full operating temperature range of –40°C to +125°C. This value is laser-trimmed during production and does not require external calibration. The threshold remains stable with a tempco of 60ppm/°C, making it suitable for precision power-monitoring applications where voltage margin is tight.

Does the MAX6382XR16D3 support manual reset functionality?

No, the MAX6382XR16D3 does not include a manual reset (MR) input. It belongs to the MAX6381/MAX6382/MAX6383 subgroup, which lacks MR pins. Manual reset capability is only present in MAX6384–MAX6390 variants (e.g., MAX6384XR16D3). For designs requiring operator-initiated reset, the MAX6382XR16D3 must be paired with external logic or replaced with a compatible MR-equipped variant.

What package type and dimensions does the MAX6382XR16D3 use?

The MAX6382XR16D3 is supplied in a 3-pin SC70-3 package (package code X3-2), with nominal dimensions of 1.25mm × 0.85mm × 0.55mm and gull-wing surface-mount leads. It is lead-free and RoHS-compliant. This ultra-compact outline enables high-density placement in wearable electronics and miniaturized IoT endpoints where board space is at a premium.

Can the MAX6382XR16D3 monitor voltages below 1.58V?

No-the MAX6382XR16D3 is factory-configured for a fixed 1.58V reset threshold and cannot be adjusted. To supervise lower rails (e.g., 1.2V or 1.0V), an external resistor divider must be used to scale the target voltage up to 1.58V at the VCC pin. However, doing so introduces additional error sources and reduces noise immunity; for dedicated low-threshold monitoring, consider the MAX6382XR12D3 (1.2V variant) instead of modifying the MAX6382XR16D3.

Is the MAX6382XR16D3 pin-compatible with other reset ICs in the same family?

Yes-the MAX6382XR16D3 shares identical pinout and footprint with all MAX6381/MAX6382/MAX6383 variants in SC70-3 packaging, including MAX6381XR16D3 and MAX6383XR16D3. This allows drop-in replacement across threshold and output-type variants (active-low push-pull or open-drain) without PCB redesign, provided the system-level logic polarity and timing requirements are verified.