Analog Devices Inc./Maxim Integrated MAX16133FQP/V+T

Overview

MAX16133FQP/V+T from Analog Devices is a precision dual-voltage microprocessor supervisor IC that monitors two independent supply rails (IN1 = 3.3V, IN2 = 1.8V) for undervoltage and overvoltage faults within ±1% threshold accuracy over -40°C to +125°C. It features active-low open-drain reset outputs (RESET1, RESET2), 23 factory-programmable reset timeout periods (560ms min), and operates from 1.71V to 5.5V VDD - ideal for automotive ADAS power-rail monitoring.

For engineers reviewing the MAX16133FQP/V+T datasheet, MAX16133FQP/V+T pinout, MAX16133FQP/V+T application, or MAX16133FQP/V+T equivalent, this page delivers verified circuit role, dual-input window-monitoring behavior, AEC-Q100 qualification status, SOT23-8 package mapping, and real-world timing/accuracy specs required for functional safety-critical designs.

Technical Context

The MAX16133FQP/V+T implements independent window-comparator architecture per input: RESET1 asserts when IN1 falls outside its ±11% tolerance window (3.3V nominal → 2.937V–3.663V), RESET2 asserts when IN2 falls outside its ±4% window (1.8V nominal → 1.728V–1.872V). Both outputs share a fixed 560ms minimum reset timeout period (suffix "T") and maintain guaranteed logic state down to VDD = 1.07V.

Its factory-trimmed thresholds use 0.25% hysteresis on IN1 and 0.5% on IN2 (per suffix "QP"), enabling immunity to short transients while preserving ±1% total accuracy across temperature. The device requires no external configuration - all settings are laser-trimmed during manufacturing.

Key Specifications

Pinout & Package

MAX16133FQP/V+T is housed in an 8-pin SOT23 package (outline 21-0078, land pattern 90-0176), optimized for high-density PCB layouts in space-constrained ADAS ECUs and sensor modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-voltage supervisor applications.

Compared with MAX16133BFM/V+T and TPS3808G33DBVR, the MAX16133FQP/V+T uniquely provides matched 3.3V/1.8V dual-window supervision with ±1% accuracy and 560ms timeout - essential for ADAS SoC power sequencing where mismatched rail timing causes latent system failure.

Availability

MAX16133FQP/V+T is available at Aetrix Electronics and suitable for automotive ADAS camera modules, radar transceivers, infotainment SoCs, and telematics control units requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MAX16133FQP/V+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 technologies, serving automotive, industrial, communications, and healthcare markets.

The MAX16132–MAX16135 family was designed specifically for functional safety-critical automotive power monitoring, delivering precision window supervision with AEC-Q100 Grade 0 qualification and ±1% accuracy over temperature.

FAQ

What is the exact nominal input voltage configuration for MAX16133FQP/V+T?

The MAX16133FQP/V+T is factory-configured for IN1 = 3.3V nominal with ±11% tolerance (suffix Q) and IN2 = 1.8V nominal with ±4% tolerance (suffix P). This pairing matches common automotive SoC rail combinations and is confirmed in the Selector Guide's Quad-Nominal Input table under suffix "QP".

Does MAX16133FQP/V+T support overvoltage detection on both inputs?

Yes, MAX16133FQP/V+T performs true window monitoring on both IN1 and IN2 - detecting both undervoltage and overvoltage faults relative to their respective nominal voltages. For IN1 (3.3V), overvoltage threshold is 3.663V (3.3V × 1.11); for IN2 (1.8V), it is 1.872V (1.8V × 1.04).

What is the reset timeout period for MAX16133FQP/V+T and how is it set?

The MAX16133FQP/V+T has a factory-programmed minimum reset timeout period of 560ms (suffix "T"). This value is laser-trimmed and non-adjustable; all reset outputs (RESET1 and RESET2) share this identical timeout, which begins after the monitored voltage re-enters its valid window.

Is MAX16133FQP/V+T AEC-Q100 qualified and what grade does it meet?

Yes, MAX16133FQP/V+T carries the /V+T suffix indicating AEC-Q100 qualification to Grade 0 (−40°C to +125°C ambient), including stress testing for thermal cycling, humidity, and ESD - fully documented in Analog Devices' official certification reports.

Can unused inputs on MAX16133FQP/V+T be left floating?

No - per datasheet Applications Information, any unused input must be connected to its nominal voltage setting (e.g., tie IN3/IN4 to appropriate voltage dividers or regulators). Floating inputs risk false resets due to noise coupling and violate recommended operating conditions.