TC621CVOA-VAO

Introduction

The TC621CVOA-VAO is a versatile integrated circuit that belongs to the category of voltage supervisors. This device is widely used in various electronic systems to monitor and control the voltage levels, ensuring the proper functioning of the connected components.

Basic Information Overview

• Category: Voltage Supervisor
• Use: Monitoring and controlling voltage levels in electronic systems
• Characteristics: Precision voltage monitoring, adjustable reset threshold, low power consumption
• Package: Small outline package (SOP), 8-pin dual in-line package (DIP)
• Essence: Ensuring stable and reliable operation of electronic systems
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on supplier

Specifications

• Operating Voltage Range: 2.5V to 5.5V
• Reset Threshold Options: Adjustable from 2.93V to 4.63V
• Quiescent Current: 10µA (typical)
• Temperature Range: -40°C to 85°C
• Output Type: Active-Low Open-Drain

Detailed Pin Configuration

1. VDD: Power Supply Input
2. GND: Ground Connection
3. MR: Manual Reset Input
4. RESET: Active-Low Reset Output
5. SENSE: Voltage Monitoring Input
6. NC: No Connection
7. NC: No Connection
8. VOUT: Supply Voltage Output

Functional Features

• Precision Voltage Monitoring: Accurately monitors the input voltage and triggers a reset signal when it falls below the preset threshold.
• Adjustable Reset Threshold: Allows flexibility in setting the voltage level at which the reset signal is activated.
• Low Power Consumption: Operates with minimal power consumption, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Reliable voltage monitoring and reset functionality
• Adjustable reset threshold for customization
• Low quiescent current for power efficiency

Disadvantages

• Limited to monitoring single voltage rail
• Requires external components for certain applications

Working Principles

The TC621CVOA-VAO operates by continuously comparing the monitored voltage (SENSE pin) with the internally set threshold voltage. When the monitored voltage falls below the threshold, the device asserts a reset signal on the RESET pin, indicating a fault condition or power supply instability.

Detailed Application Field Plans

The TC621CVOA-VAO finds extensive application in various fields, including: - Automotive Electronics: Used for voltage monitoring in automotive control systems. - Industrial Control Systems: Ensures stable voltage levels in industrial automation equipment. - Consumer Electronics: Integrated into power management circuits of consumer electronic devices. - Telecommunications: Provides voltage supervision in communication infrastructure equipment.

Detailed and Complete Alternative Models

• TC54VC: Offers similar voltage monitoring capabilities with different package options.
• MAX823: Provides adjustable reset threshold and low power consumption features.
• MIC803: Compact voltage supervisor with fixed reset threshold options.

In conclusion, the TC621CVOA-VAO is a reliable voltage supervisor IC with precision monitoring, adjustable threshold, and low power consumption, making it suitable for a wide range of electronic applications.

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