MAX809REUR+T

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MAX809REUR+T

IC SUPERVISOR 1 CHANNEL SOT23-3

  • Manufacturer
  • Mfr. Part #MAX809REUR+T
  • Package SOT23-3
  • Datasheet
  • In Stock7897

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Specifications

Package Tape & Reel (TR)
ProductStatus Obsolete
Type Simple Reset/Power-On Reset
NumberofVoltagesMonitored 1
Voltage-Threshold 2.63V
Output Push-Pull, Totem Pole
Reset Active Low
ResetTimeout 140ms Minimum
OperatingTemperature -40°C ~ 105°C (TA)
MountingType Surface Mount
Package/Case TO-236-3, SC-59, SOT-23-3

Overview

Description

The MAX809REUR+T is a specific model of a microprocessor supervisory circuit, part of the MAX809 series produced by Maxim Integrated (now part of Analog Devices). These devices are designed to monitor the supply voltage of digital systems and provide a reset signal to the microprocessor when necessary. The primary function of the MAX809REUR+T is to ensure that the microprocessor does not operate under insufficient supply conditions which could lead to unpredictable behavior.
The MAX809 series features low supply current, precision monitoring of supply voltages, and active-low reset outputs. The “R” in the model number indicates the reset threshold voltage, and the “E” refers to the voltage level. The “UR” signifies the package type, while the “+T” denotes the tape and reel packaging for automated assembly processes.
These devices are widely used in electronic systems such as computers, communication equipment, and embedded systems, to enhance reliability by ensuring that the microprocessor starts correctly and remains in a reset state during power-up, power-down, or brownout conditions.

Features

The MAX809REUR+T is a microprocessor supervisory circuit. Key features include:
1. Reset Functionality: It provides a reset signal to the microprocessor during power-up, power-down, and brownout conditions to prevent undefined processor states.
2. Precision Monitoring: The device monitors supply voltage with high precision, typically at a threshold of 2.63V, ensuring reliable system operation.
3. Active-Low RESET Output: It generates an active-low reset signal which remains low for a fixed duration after the monitored voltage exceeds the threshold, providing sufficient time for system stabilization.
4. Low Supply Current: The MAX809REUR+T consumes minimal power, making it suitable for battery-powered applications.
5. Fast Response: Its quick reset assertion/deassertion ensures timely intervention in case of voltage anomalies.
6. Small Package: Available in a compact SOT-23 package, it is ideal for space-constrained applications.
7. Temperature Range: It operates over a wide temperature range, typically from -40°C to +85°C, making it versatile for various environmental conditions.
These features make the MAX809REUR+T an effective solution for enhancing system reliability in various electronic applications.

Package

The MAX809REUR+T is a microprocessor supervisory circuit package in a SOT-23-3 (Small Outline Transistor) package type. This package is small, typically used for surface-mount applications, providing reset signals to microprocessors during power-up, power-down, and brownout conditions.

Pinout

The MAX809REUR+T is a microprocessor supervisory circuit, often utilized to monitor the supply voltage in digital systems. It is designed to assert a reset signal whenever the supply voltage drops below a predetermined threshold. This ensures that the microprocessor remains in a known state until the power supply is stable.
The device typically comes in a 3-pin SOT-23 package. Its primary functions include:
1. Reset Output (Active-Low RESET): This pin is used to signal the reset condition. It is asserted (pulled low) when the monitored voltage falls below the specified threshold and remains asserted for a specified timeout period after the voltage rises above the threshold again.
2. Ground: This pin provides the reference ground for the device.
3. Supply Voltage (VCC): This pin connects to the monitored power supply.
The MAX809 series provides reliable operation by resetting the microprocessor during power-up, power-down, and brownout conditions.

Manufacturer

The MAX809REUR+T is manufactured by Analog Devices, Inc. This company is a multinational corporation known for designing and manufacturing a wide range of analog, mixed-signal, and digital signal processing (DSP) integrated circuits. These components are used in various electronic equipment, including those in the automotive, communications, healthcare, and industrial sectors. Analog Devices is recognized for its expertise in converting, conditioning, and processing real-world phenomena into actionable data, making it a key player in the semiconductor industry.

Application

The MAX809REUR+T is a microprocessor supervisory circuit used in applications requiring reliable system monitoring. It is commonly employed in embedded systems, microcontroller applications, and other electronic devices to monitor supply voltage and provide a reset signal when the voltage falls below a certain threshold. This helps prevent erratic operation, data corruption, and system crashes. Typical application areas include consumer electronics, industrial control systems, automotive electronics, and any digital systems where voltage monitoring and microprocessor reset capabilities are crucial for maintaining system integrity and reliability.

Equivalent

The MAX809REUR+T is a microprocessor supervisory circuit, and its equivalent products include:
1. Microchip MCP130-315DI/TO - Provides similar voltage monitoring and reset functions.
2. ON Semiconductor NCP803SN315T1G - Offers comparable features with a similar voltage threshold.
3. Texas Instruments TPS3809K33DBVT - Functions as a drop-in replacement with equivalent specifications.
These equivalents offer similar reset thresholds and functionalities suitable for applications requiring microprocessor supervision. Always verify pin compatibility and electrical characteristics before substituting.

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