Analog Devices Inc./Maxim Integrated MAX16132E33B/V+T

Overview

MAX16132E33B/V+T from Analog Devices is a quad-voltage microprocessor supervisor IC designed for automotive ADAS systems, monitoring four independent supply rails (IN1–IN4) with ±1% threshold accuracy over -40°C to +125°C. It features factory-programmed 3.3V nominal input thresholds, ±4% window tolerance, 0.25% hysteresis, and a 560ms reset timeout period. Its active-low open-drain reset outputs (RESET1/RESET2) assert on undervoltage or overvoltage faults across dual channel pairs - ideal for safety-critical power sequencing in radar and camera modules.

For engineers reviewing the MAX16132E33B/V+T datasheet, MAX16132E33B/V+T pinout, MAX16132E33B/V+T application, or MAX16132E33B/V+T equivalent, this device delivers precision window supervision for multivoltage ASICs in automotive environments where functional safety, transient immunity, and AEC-Q100 compliance are mandatory design requirements.

Technical Context

The MAX16132E33B/V+T implements a quad-input window monitoring architecture with two independent reset outputs: RESET1 responds to faults on IN1 or IN2, while RESET2 responds to faults on IN3 or IN4. Each input uses a precision voltage reference trimmed for ±1% accuracy over temperature and supports programmable UV/OV thresholds via factory-set tolerance (±4%) and hysteresis (0.25%).

All four inputs share identical electrical characteristics - including 1.71V–5.5V operating VDD, 15μA quiescent current, and guaranteed correct reset logic state down to VDD = 1.07V - enabling robust operation during brown-out conditions without external supervision.

Key Specifications

Pinout & Package

MAX16132E33B/V+T is housed in an 8-pin SOT23 package (outline 21-0078, land pattern 90-0176), optimized for space-constrained automotive PCB layouts and qualified per AEC-Q100 Grade 0 (-40°C to +125°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MAX16135E33B/V+T, the MAX16132E33B/V+T offers identical electrical and functional behavior but is explicitly designated for automotive use with AEC-Q100 validation; versus TPS3808G33DBVR, it adds critical overvoltage detection, quad monitoring, and automotive-grade reliability - making it the sole fit for ISO 26262-compliant systems.

Availability

MAX16132E33B/V+T is available at Aetrix Electronics and suitable for automotive ADAS radar modules, camera ECUs, and multivoltage ASIC power management requiring stable component supply with AEC-Q100 assurance and long-term production continuity.

Supply support for MAX16132E33B/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 with precision, reliability, and innovation.

The MAX16132–MAX16135 family was engineered specifically for automotive functional safety applications - delivering precision window supervision, AEC-Q100 qualification, and transient-immune monitoring for ADAS, infotainment, and domain controller power systems.

FAQ

What is the exact input voltage configuration of MAX16132E33B/V+T?

The MAX16132E33B/V+T is factory-programmed for quad 3.3V nominal inputs (IN1–IN4), ±4% window tolerance, 0.25% hysteresis, and 560ms reset timeout. This configuration is encoded in the 'E33B' and 'T' suffixes per the Selector Guide and confirmed in the Ordering Information table - no external configuration is required.

Does MAX16132E33B/V+T support overvoltage detection, and how does it differ from basic reset ICs?

Yes, MAX16132E33B/V+T provides true window supervision - detecting both undervoltage (below 3.168V) and overvoltage (above 3.432V) on each input. Unlike basic reset ICs that only monitor UV, this dual-threshold capability prevents system damage from regulator failures or load-dump transients, a requirement for ISO 26262 ASIL-B compliance.

How are the reset outputs structured in MAX16132E33B/V+T, and what logic governs their assertion?

MAX16132E33B/V+T has two active-low open-drain reset outputs: RESET1 asserts when IN1 or IN2 falls outside its 3.168V–3.432V window; RESET2 asserts when IN3 or IN4 falls outside the same window. Both outputs remain asserted for the full 560ms timeout after the fault clears - ensuring robust processor reset hold time.

Is MAX16132E33B/V+T qualified for automotive use, and what does the '/V+T' suffix indicate?

Yes, MAX16132E33B/V+T is AEC-Q100 qualified (Grade 0, -40°C to +125°C). The '/V' denotes AEC-Q100 qualification and automotive reliability testing; '+T' indicates tape-and-reel packaging. This makes MAX16132E33B/V+T suitable for safety-critical ADAS applications where environmental robustness is mandatory.

What is the minimum VDD voltage at which MAX16132E33B/V+T guarantees correct reset output logic state?

MAX16132E33B/V+T guarantees correct active-low reset output logic state down to VDD = 1.07V - verified across temperature and process corners. This ensures reliable reset assertion even during severe brown-out conditions before the internal UVLO (1.50V typ) disables the device.