Analog Devices Inc./Maxim Integrated MAX6410BS44+T

Overview

MAX6410BS44+T from Maxim Integrated is an ultra-low-power, active-high push-pull voltage detector with a factory-trimmed 4.38V threshold (±2.5% over –40°C to +85°C), 500nA supply current, and manual reset input. It monitors regulated system or battery voltages in portable electronics, asserting a logic-high output when VCC falls below threshold. Designed for space-constrained applications requiring reliable power-on reset and glitch immunity.

For engineers reviewing the MAX6410BS44+T datasheet, MAX6410BS44+T pinout, MAX6410BS44+T application, or MAX6410BS44+T equivalent, key selection criteria include its 4.38V detection accuracy, active-high push-pull output behavior, UCSP-4 package footprint, and guaranteed output validity down to VCC = 1.0V - critical for low-voltage battery monitoring and microcontroller reset supervision.

Technical Context

The MAX6410BS44+T implements a precision bandgap reference comparator with factory-trimmed threshold and 9.5mV hysteresis, enabling stable detection without external components. Its internal 50kΩ MR pullup and 200ns MR-to-OUT delay support robust manual reset functionality in noisy environments.

It features immunity to fast VCC transients (e.g., ≤100ns glitches at 100mV overdrive) and operates across 1.2V–5.5V supply range while maintaining ±2.5% threshold accuracy over full temperature range. Output remains valid down to VCC = 1.0V, ensuring predictable behavior during brownout conditions.

Key Specifications

Pinout & Package

MAX6410BS44+T is housed in a 2mm × 2mm, 4-bump UCSP (Ultra Compact Silicon Package) with bottom-side solder bumps. The package is lead-free and RoHS-compliant, optimized for fine-pitch SMT assembly on high-density PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV803SDBZR and TPS3808G33DBVR, the MAX6410BS44+T uniquely delivers 4.38V detection with active-high push-pull output and sub-µA consumption in a 2mm × 2mm footprint - making it the only option that satisfies all three requirements simultaneously for compact, long-life 4.5V-system supervisors.

Availability

MAX6410BS44+T is available at Aetrix Electronics and suitable for smart wearables, medical sensors, and industrial handhelds requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for MAX6410BS44+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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and consumer applications.

The MAX6406–MAX6411 family was designed specifically for ultra-low-power voltage monitoring in battery-critical portable equipment, delivering precision thresholds, minimal footprint, and guaranteed operation down to 1V - addressing core challenges in wearable and medical electronics.

FAQ

What is the exact reset threshold voltage of MAX6410BS44+T and how stable is it over temperature?

The MAX6410BS44+T has a nominal reset threshold of 4.38V, with ±2.5% accuracy guaranteed over the full operating temperature range of –40°C to +85°C. This stability is achieved via factory trimming of the internal bandgap reference comparator and is documented in Table 1 of the datasheet. The MAX6410BS44+T maintains this tolerance without requiring external calibration or compensation circuits.

Does MAX6410BS44+T require external components to operate?

No, the MAX6410BS44+T requires no external components for basic voltage detection functionality. Its precision bandgap reference, comparator, and internal 50kΩ MR pullup resistor are integrated on-die. Only the VCC, GND, MR (if used), and OUT connections are needed - eliminating resistors, capacitors, or trim pots typically required in discrete reset solutions.

Can MAX6410BS44+T be used with a 3.3V microcontroller reset input?

Yes, the MAX6410BS44+T's active-high push-pull output is fully compatible with standard 3.3V µP reset inputs. When asserted (VCC < 4.38V), OUT drives to ≥0.8 × VCC - exceeding the VIH requirement of most 3.3V logic families. When deasserted, VOL remains ≤0.4V at ISINK = 3.2mA, satisfying VIL specifications. No level-shifting circuitry is needed.

What is the minimum VCC voltage at which MAX6410BS44+T guarantees correct output state?

The MAX6410BS44+T guarantees correct output logic state down to VCC = 1.0V, as explicitly stated in the datasheet. This means the device continues to assert or deassert the OUT signal reliably even during deep brownout conditions - a critical capability for fail-safe shutdown in battery-powered systems where voltage may sag below normal operating range.

How does the manual reset (MR) input behave on MAX6410BS44+T?

The MR input on MAX6410BS44+T is active-low with an internal 50kΩ pullup to VCC. Pulling MR low asserts the OUT signal regardless of VCC level, and OUT remains asserted as long as MR is held low. If unused, MR can be left floating or tied to VCC. The input accepts TTL/CMOS logic levels and supports noise filtering via optional 0.1µF capacitor to GND.