MAX6320PUK31BX/V+T

Automotive-Grade Voltage Supervisor with Watchdog Timer and Manual Reset

Product Description

Product Overview

The MAX6320PUK31BX/V+T is a microprocessor supervisory IC designed to monitor a single power supply voltage and provide reliable reset and watchdog functionality. It flags power faults and system inactivity by asserting an active-low reset output, and integrates a watchdog timeout to recover from firmware lockups. The open-drain reset output allows easy interfacing with microcontrollers and digital systems. Qualified to AEC-Q100 automotive standards, this device supports designs with stringent reliability requirements.

Key Features

Monitors one supply voltage with a fixed reset threshold (≈3.08 V)
Active-low reset output (open drain/open collector)
Integrated watchdog timer with fixed timeout (~20 ms)
Manual reset input support
Ultra-low operating current (~10 µA)
Wide supply range: 1 V to 5.5 V
Operating temperature: −40 °C to +125 °C
Automotive-grade AEC-Q100 qualified
Compact 5-pin SOT-23 package
RoHS compliant

Applications

Microcontroller and microprocessor reset supervision
Power-on reset sequencing
Watchdog supervision for firmware hang detection
Automotive embedded systems
Industrial controllers and automation systems
Battery-powered and portable electronics with fault monitoring

Electrical Characteristics

Parameter	Typical
Device Type	Microprocessor Supervisor IC
Monitored Voltages	Single Channel
Threshold Voltage	~3.08 V
Reset Output	Active Low, Open Drain
Watchdog	Yes (Timeout ~20 ms)
Manual Reset	Yes
Supply Voltage Range	1 V to 5.5 V
Supply Current	~10 µA
Operating Temp.	−40 °C ~ +125 °C
Package	SOT-23-5
Automotive Qualification	AEC-Q100
RoHS Compliance	RoHS Compliant