Analog Devices Inc./Maxim Integrated MAX6380XR41-TG125

Overview

MAX6380XR41-TG125 from Maxim Integrated is an ultra-low-power, open-drain, active-low voltage detector with a factory-trimmed threshold of 4.100V ±2.5%, designed for precision power-supply monitoring in battery-powered systems. It features 500nA supply current, operates down to 1V VCC, and rejects fast transients on VCC. Used in portable equipment for reliable reset assertion during brownout conditions.

For engineers reviewing the MAX6380XR41-TG125 datasheet, MAX6380XR41-TG125 pinout, MAX6380XR41-TG125 application, or MAX6380XR41-TG125 equivalent, key selection criteria include its 4.100V trip point, SC70-3 package, open-drain output configuration, -40°C to +85°C operating range, and immunity to sub-100µs VCC glitches at typical overdrive levels.

Technical Context

The MAX6380XR41-TG125 implements a precision bandgap reference and comparator with internally trimmed resistors to set its 4.100V threshold. Its open-drain output requires an external pull-up and sinks up to 100µA while asserted, enabling flexible logic-level interfacing across supply domains.

It guarantees correct output state (low when VCC < VTH) down to 1V VCC and exhibits ±2.5% threshold accuracy over temperature. Propagation delay is 9.5µs (typical) for falling-edge detection, with hysteresis of 100mV to prevent chatter near threshold.

Key Specifications

Pinout & Package

MAX6380XR41-TG125 is housed in a 3-pin SC70-3 package (2.0mm × 2.1mm × 0.95mm), optimized for space-constrained portable designs. The package is lead-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV803EB33DBZR and TPS3808G33DBVR, the MAX6380XR41-TG125 uniquely combines 4.100V precision, 500nA current, SC70-3 size, and open-drain output-making it optimal for compact, multi-rail, or battery-critical designs where exact trip point and ultra-low power are non-negotiable.

Availability

MAX6380XR41-TG125 is available at Aetrix Electronics and suitable for portable medical sensors, industrial IoT edge nodes, wearable fitness trackers, and smart meter battery backup systems requiring stable component supply and long-term lifecycle support.

Supply support for MAX6380XR41-TG125 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 high-performance analog and mixed-signal semiconductors for power, sensing, and interface applications in industrial, automotive, and consumer markets.

The MAX6375–MAX6380 family delivers ultra-low-power, factory-trimmed voltage detection for battery and power-supply monitoring-targeting portable, energy-harvesting, and always-on embedded systems where reliability and minimal current draw are essential.

FAQ

What is the exact reset threshold voltage of MAX6380XR41-TG125?

The MAX6380XR41-TG125 has a factory-trimmed nominal reset threshold of 4.100V, with guaranteed accuracy of ±2.5% over the full -40°C to +85°C temperature range. This value is confirmed in Table 1 of the official datasheet under suffix "R41", and applies specifically to the MAX6380 variant group covering 3.30V–4.63V thresholds.

Does MAX6380XR41-TG125 support operation below 2.0V VCC?

Yes, MAX6380XR41-TG125 guarantees correct output logic state (active-low when VCC < VTH) down to 1.0V VCC. Its internal bandgap reference and comparator remain functional across 1.2V to 5.5V, enabling reliable brownout detection even during deep discharge of lithium-based batteries.

What package type and dimensions does MAX6380XR41-TG125 use?

MAX6380XR41-TG125 uses the SC70-3 package: 2.0mm × 2.1mm × 0.95mm body size with standard pin pitch. It is lead-free and RoHS-compliant, and marked "TG125" on top per Maxim's marking code table for R41-threshold SC70 devices.

Is MAX6380XR41-TG125 compatible with 1.8V logic systems?

Yes - MAX6380XR41-TG125 features an open-drain output that can be pulled up to any voltage from 1.2V to 5.5V. When interfacing with 1.8V logic, connect a pull-up resistor from OUT to the 1.8V domain; the device sinks ≤100µA when asserted, ensuring valid logic-low levels per I_OL specs.

How does MAX6380XR41-TG125 handle power supply transients?

MAX6380XR41-TG125 is designed to ignore fast negative-going VCC transients. Per the "Maximum Transient Duration vs. Threshold Overdrive" graph, it suppresses output pulses for glitches shorter than ~80µs at 100mV overdrive, preventing false resets caused by switching noise or ESD events on the supply rail.