TPS3809I50DBVR

Introduction

The TPS3809I50DBVR is a voltage supervisor belonging to the category of integrated circuits. It is commonly used in electronic devices to monitor the power supply voltage and ensure proper system operation. This entry provides an overview of the TPS3809I50DBVR, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Integrated Circuits
• Use: Voltage Supervisor
• Characteristics: Monitors power supply voltage, ensures proper system operation
• Package: SOT-23 (DBV)
• Essence: Voltage monitoring and reset generation
• Packaging/Quantity: Tape and Reel (3000 units per reel)

Specifications

• Voltage Threshold: 5.0V
• Accuracy: ±2%
• Operating Temperature Range: -40°C to 125°C
• Supply Current: 10µA (typical)
• Output Type: Active-Low, Open-Drain

Detailed Pin Configuration

The TPS3809I50DBVR has a standard SOT-23 package with three pins: 1. VDD - Power Supply Input 2. GND - Ground 3. RESET - Active-Low Reset Output

Functional Features

• Voltage Monitoring: Monitors the power supply voltage and asserts a reset signal when the voltage falls below the threshold.
• Manual Reset Input: Allows for manual assertion of the reset signal.
• Low Power Consumption: Consumes minimal supply current, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset generation
• Wide operating temperature range
• Low power consumption

Disadvantages

• Limited to monitoring a single voltage threshold
• Requires external components for specific timing requirements

Working Principles

The TPS3809I50DBVR operates by continuously monitoring the input voltage. When the voltage drops below the preset threshold, the device asserts a reset signal, which can be used to initiate a system reset or perform other necessary actions. The active-low open-drain output allows for flexibility in interfacing with various microcontrollers and system components.

Detailed Application Field Plans

The TPS3809I50DBVR finds extensive use in applications requiring reliable voltage monitoring and reset generation. Some common application fields include: - Embedded Systems: Ensuring stable operation and fault recovery in microcontroller-based systems. - Industrial Control Systems: Providing supervision and reset capabilities in industrial automation equipment. - Automotive Electronics: Monitoring critical voltages in automotive control units and safety systems.

Detailed and Complete Alternative Models

Some alternative models to the TPS3809I50DBVR include: - MAX823: Offers similar voltage monitoring and reset functions with adjustable threshold levels. - MIC803: Provides voltage monitoring and reset generation in a smaller SOT-143 package.

In conclusion, the TPS3809I50DBVR is a reliable voltage supervisor with essential features for ensuring system stability and reliability in various electronic applications.

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