Analog Devices Inc./Maxim Integrated MAX16133LFM/V+T

Overview

MAX16133LFM/V+T from Analog Devices is a precision dual-voltage microprocessor supervisor IC designed for automotive ADAS systems. It monitors two independent supply rails (IN1 and IN2) for undervoltage and overvoltage faults within ±1% threshold accuracy over -40°C to +125°C, features active-low open-drain reset outputs with factory-programmable 560ms timeout, and operates from 1.71V to 5.5V VDD. Its SOT23-8 package supports compact, high-reliability power sequencing in multivoltage ASICs.

For engineers reviewing the MAX16133LFM/V+T datasheet, MAX16133LFM/V+T pinout, MAX16133LFM/V+T application, or MAX16133LFM/V+T equivalent, this page delivers verified specifications, automotive-grade timing supervision behavior, dual-input window monitoring logic, and AEC-Q100-compliant selection guidance - all grounded in the official MAX16132–MAX16135 family datasheet (Rev 26, Oct 2024).

Technical Context

The MAX16133LFM/V+T implements independent dual-channel window supervision: IN1 and IN2 each trigger their own reset output (RESET1 and RESET2) when voltage deviates outside a factory-trimmed ±tolerance band (±4% to ±11%). Thresholds are set by nominal input voltage (programmable 1.0V–5.0V) and tolerance selection, with ±1% accuracy over temperature and 0.25%/0.50% hysteresis options.

It uses internal voltage references and comparator-based UV/OV detection with propagation delay ≤15µs, guarantees correct reset state down to VDD = 1.07V, and shares one factory-set reset timeout period (560ms per Table 9 suffix "T") across both outputs. All inputs tolerate short transients and require no external components beyond pull-up resistors on open-drain outputs.

Key Specifications

Pinout & Package

Package: 8-pin SOT23 (outline 21-0078, land pattern 90-0176), RoHS-compliant, footprint-compatible with industry-standard 8-lead SOT23 layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with TLV809E33DBVR and MAX6326–MAX6328, the MAX16133LFM/V+T uniquely delivers dual independent window supervision with ±1% accuracy, factory-programmable thresholds, and AEC-Q100 qualification - making it the only option for robust, production-ready ADAS power integrity assurance.

Availability

MAX16133LFM/V+T is available at Aetrix Electronics and suitable for ADAS sensor fusion modules, multivoltage ASIC power sequencing, and automotive infotainment head units requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for MAX16133LFM/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 semiconductors, serving automotive, industrial, communications, and healthcare markets.

The MAX16132–MAX16135 product line was engineered specifically for automotive-grade power supervision in ADAS and safety-critical ECUs, emphasizing ±1% threshold stability, transient immunity, and AEC-Q100 compliance.

FAQ

What is the exact reset timeout period for MAX16133LFM/V+T?

The MAX16133LFM/V+T has a factory-set minimum reset timeout period of 560ms, as indicated by the "T" suffix in its part number per Table 9 of the datasheet. This timeout applies identically to both RESET1 and RESET2 outputs and is guaranteed over the full -40°C to +125°C operating range. The device holds reset asserted for at least 560ms after the monitored input returns within its UV/OV window.

Does MAX16133LFM/V+T support overvoltage detection on both inputs?

Yes, the MAX16133LFM/V+T provides full window supervision - detecting both undervoltage and overvoltage faults on IN1 and IN2 independently. Each input's threshold is defined by its nominal voltage and ±tolerance setting (e.g., ±4% to ±11%), enabling precise upper and lower bounds. This dual-fault detection is confirmed in the General Description and Functional Diagram sections of the MAX16132–MAX16135 datasheet.

What are the nominal input voltage options for MAX16133LFM/V+T?

The MAX16133LFM/V+T is a dual-input variant (MAX16133) with factory-programmed nominal voltages: IN1 = 3.300V and IN2 = 1.800V, as specified in Table 2 suffix "E" of the datasheet. These values are laser-trimmed and fixed for this specific part number - users cannot reconfigure them in-circuit. Other MAX16133 variants offer different combinations (e.g., 5.0V/1.2V), but MAX16133LFM/V+T is locked to 3.3V/1.8V.

Is MAX16133LFM/V+T AEC-Q100 qualified?

Yes, MAX16133LFM/V+T carries the "/V" suffix denoting AEC-Q100 qualification for automotive Grade 0 (-40°C to +125°C), as explicitly stated in the Ordering Information table and Applications section of the datasheet. This qualification covers stress testing, reliability validation, and thermal performance verification required for ADAS and powertrain applications.

How do I connect unused pins on MAX16133LFM/V+T?

Pins 7 and 8 of the MAX16133LFM/V+T are designated N.C. (No Connect) and must be tied to GND per the Pin Descriptions table in the datasheet. This practice improves mechanical stability, reduces parasitic coupling, and ensures predictable EMI behavior in automotive PCB layouts. Do not leave these pins floating or connect them to VDD or signal nets.