Analog Devices Inc./Maxim Integrated MAX16138ATA01/VY+T

Overview

MAX16138ATA01/VY+T from Analog Devices is a ±0.7% accurate, single-window voltage supervisor IC for automotive-grade system supply monitoring. It monitors a 0.85V nominal input with ±4% UV/OV threshold window, features factory-set 100ms reset timeout, 5µs overvoltage fault response, and Built-In Self-Test (BIST) for ASIL-compliant ADAS power sequencing.

For engineers reviewing the MAX16138ATA01/VY+T datasheet, MAX16138ATA01/VY+T pinout, MAX16138ATA01/VY+T application, or MAX16138ATA01/VY+T equivalent, this device delivers precision window monitoring, latched OV fault reporting, on-demand BIST diagnostics, and AEC-Q100 qualification - critical for multivoltage ASICs and safety-critical automotive subsystems.

Technical Context

The MAX16138ATA01/VY+T implements a dual-comparator architecture with independent undervoltage and overvoltage detection paths, each trimmed to ±0.7% accuracy across -40°C to +125°C. Its internal BIST logic performs power-up validation and on-demand self-checks via CLR/BIST pin assertion ≥150µs, with NR pin selecting between reset-inclusive or reset-free test modes.

It supports open-drain RST and OV outputs with 0.1V VOL at 3mA sink, operates from 1.71V–5.5V VDD, and uses factory-programmed hysteresis (±0.5%) to reject transients near the 0.85V threshold. The 2mm × 2mm TDFN-8 side-wettable package enables automated optical inspection in high-reliability automotive PCB assemblies.

Key Specifications

Pinout & Package

MAX16138ATA01/VY+T is housed in an 8-pin, 2mm × 2mm TDFN side-wettable package (package code T822CY+2C), optimized for solder joint inspection and thermal performance (θJA = 162°C/W on 4-layer board).

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV809E33DBVR and MAX6373KA+T, the MAX16138ATA01/VY+T uniquely combines ±0.7% window accuracy, AEC-Q100 Grade 0 rating, on-demand BIST, and latched OV output - making it the sole option for ASIL-compliant automotive voltage monitoring where both UV and OV faults must be independently detected and diagnosed.

Availability

MAX16138ATA01/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 traceability.

Supply support for MAX16138ATA01/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 automotive, industrial, communications, and healthcare markets with precision, reliability, and safety-focused solutions.

The MAX16138 belongs to Analog Devices' automotive-grade supervisory IC product line, designed specifically to meet ISO 26262 functional safety requirements for voltage monitoring in ADAS, domain controllers, and electrified vehicle subsystems.

FAQ

What is the factory-set input threshold voltage for MAX16138ATA01/VY+T?

The MAX16138ATA01/VY+T has a factory-set nominal input threshold voltage of 0.85V, with ±4% undervoltage/overvoltage window (0.816V to 0.884V). This value is laser-trimmed during production and cannot be adjusted externally. The ±0.7% accuracy specification applies across the full -40°C to +125°C operating range, ensuring consistent performance in automotive under-hood environments where the MAX16138ATA01/VY+T is deployed.

Does MAX16138ATA01/VY+T support both push-pull and open-drain RST outputs?

No, the MAX16138ATA01/VY+T features an open-drain RST output only, as confirmed in the datasheet's Pin Description and Electrical Characteristics tables. While the MAX16138 family offers push-pull variants, the ATA01/VY+T suffix denotes the open-drain configuration. A 10kΩ pull-up resistor to VDD is required for proper RST logic level translation, and using >100kΩ may cause BIST errors per Note 3 in the datasheet.

How does the Built-In Self-Test (BIST) function in MAX16138ATA01/VY+T operate during normal operation?

The MAX16138ATA01/VY+T supports on-demand BIST initiation during normal operation by pulling the CLR/BIST pin low for ≥150µs. If NR is high, BIST runs without asserting RST; if NR is low, RST is asserted during test. BIST validates internal comparators, timing circuits, and output drivers. Failure pulls BIST low - a signal that must be monitored by the host system to meet ASIL-B/C diagnostic coverage requirements.

What is the purpose of the NR pin on MAX16138ATA01/VY+T, and how should it be configured?

The NR (No Reset) pin on MAX16138ATA01/VY+T selects BIST execution mode: logic high enables BIST-only testing (BIST output active, RST unaffected); logic low forces RST assertion during BIST - useful for full-system reset-on-failure strategies. NR must be actively driven (not left floating) and is sampled at the start of each BIST cycle. Its state directly determines whether the MAX16138ATA01/VY+T impacts system reset state during diagnostics.

Is MAX16138ATA01/VY+T qualified for automotive applications, and what standards does it meet?

Yes, MAX16138ATA01/VY+T is AEC-Q100 qualified (Grade 0, -40°C to +125°C ambient), with full qualification testing including HTOL, temperature cycling, and ESD. It supports ISO 26262 ASIL-B/C system-level compliance through its BIST capability, latched OV output, and ±0.7% threshold accuracy over temperature. The "/V" in the part number explicitly denotes automotive qualification, and "Y" confirms side-wettable packaging for automated optical inspection in automotive manufacturing.