Analog Devices Inc./Maxim Integrated MAX16191ATA00/VY+T

Overview

MAX16191ATA00/VY+T from Analog Devices is a single-channel, ultra-high-accuracy (±0.35%) window supervisor IC that monitors low-voltage core supplies (0.6V–0.9V nominal) for undervoltage/overvoltage faults. It features factory-programmable ±3% threshold window, 10ms reset timeout, open-drain active-low RST output, and operates across -40°C to +125°C - deployed in ADAS power-rail monitoring and multivoltage ASIC sequencing.

For engineers reviewing the MAX16191ATA00/VY+T datasheet, MAX16191ATA00/VY+T pinout, MAX16191ATA00/VY+T application, or MAX16191ATA00/VY+T equivalent, key selection criteria include its ±0.35% threshold accuracy over temperature, side-wettable 8-pin TDFN package, automotive AEC-Q100 qualification, and precise 0.875V nominal input setting with symmetrical ±3% UV/OV window.

Technical Context

The MAX16191ATA00/VY+T implements a precision bandgap-referenced window comparator architecture with internal trimming for ±0.35% total threshold accuracy across -40°C to +125°C. Its UV/OV detection logic triggers an active-low reset assertion when the monitored IN voltage falls outside the factory-set 0.875V ±3% window, followed by a guaranteed 10ms deassertion delay after re-entry into the window.

It integrates a dedicated UVLO circuit (1.30V–1.68V) on VDD to ensure known RST state during power-up, supports 1.7V–5.5V supply range, and delivers <55µA quiescent current. The open-drain RST output requires external pull-up and provides noise-immune fault signaling with 5µs propagation delay and 0.1V VOL at 1mA sink.

Key Specifications

Pinout & Package

MAX16191ATA00/VY+T is housed in an 8-pin, 2mm × 2mm TDFN package with side-wettable flanks (package code T822CY+2C), optimized for automated optical inspection (AOI) and high-reliability automotive solder joints.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar supervisory circuit applications.

Compared with MAX16191ATA01/VY+T, the MAX16191ATA00/VY+T offers higher nominal voltage and longer timeout for stability-critical rails; compared with TLV809E29DBVR, it delivers true window supervision, ±0.35% accuracy, and AEC-Q100 compliance - essential for safety-aware automotive and AI infrastructure systems.

Availability

MAX16191ATA00/VY+T is available at Aetrix Electronics and suitable for Advanced Driver-Assistance Systems (ADAS), multivoltage ASICs, and automotive storage equipment requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.

Supply support for MAX16191ATA00/VY+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

Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.

The MAX16191 belongs to Analog Devices' automotive-qualified supervisory IC product line, engineered specifically for precision voltage monitoring in safety-critical, low-voltage power domains of next-generation ADAS and AI compute platforms.

FAQ

What is the exact nominal input voltage and UV/OV tolerance programmed in MAX16191ATA00/VY+T?

The MAX16191ATA00/VY+T is factory-programmed with a nominal input voltage of 0.875V and a symmetrical ±3% undervoltage/overvoltage threshold window. This yields precise trip points of approximately 0.8488V (UV) and 0.9013V (OV), confirmed in the Selector Guide Table and Ordering Information section of the official datasheet.

Does MAX16191ATA00/VY+T support push-pull reset output, or is it open-drain only?

The MAX16191ATA00/VY+T variant features an open-drain active-low RST output (Pin 7), as specified in the Pin Description and General Description. While the MAX16191 family offers push-pull options in other variants, this specific part number is configured exclusively for open-drain operation and requires an external pull-up resistor.

What is the reset timeout period of MAX16191ATA00/VY+T, and is it adjustable?

The MAX16191ATA00/VY+T has a fixed, factory-programmed reset timeout period of 10ms. This value is not user-adjustable and is guaranteed over the full -40°C to +125°C operating temperature range. It defines the minimum duration RST remains asserted after the IN voltage re-enters the valid threshold window.

Is MAX16191ATA00/VY+T qualified for automotive applications, and what standard does it meet?

Yes, MAX16191ATA00/VY+T is AEC-Q100 qualified (Grade 1) and rated for operation from -40°C to +125°C. The "/V" suffix in the part number explicitly denotes automotive qualification, and the device meets stress testing requirements for humidity, temperature cycling, and mechanical shock per AEC-Q100 Rev H.

What package type and footprint does MAX16191ATA00/VY+T use, and why is side-wettable flanking important?

MAX16191ATA00/VY+T uses an 8-pin TDFN package (2mm × 2mm, outline number 21-100341, land pattern 90-100117) with side-wettable flanks (denoted by "Y" in the package code). This feature enables automated optical inspection (AOI) of solder joints - critical for zero-defect manufacturing in automotive electronics assembly lines.