TPS3820-50DBVR

Product Overview

Category

The TPS3820-50DBVR belongs to the category of voltage supervisors.

Use

It is primarily used for monitoring and supervising the voltage levels in electronic systems.

Characteristics

• Low-power consumption
• Wide operating voltage range
• High accuracy
• Small package size

Package

The TPS3820-50DBVR comes in a small SOT-23 package.

Essence

The essence of the TPS3820-50DBVR is its ability to provide reliable voltage monitoring and reset generation in various applications.

Packaging/Quantity

The product is typically available in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 6.5V
• Threshold Voltage: 4.55V
• Reset Timeout Period: 50ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The TPS3820-50DBVR has three pins:

1. VDD: This pin is connected to the power supply voltage.
2. GND: This pin is connected to the ground.
3. RESET: This pin outputs a reset signal when the monitored voltage falls below the threshold.

Functional Features

• Undervoltage Detection: Monitors the input voltage and generates a reset signal when it falls below the threshold.
• Reset Generation: Provides a reset signal to the system until the voltage rises above the threshold.
• Power-On Reset Delay: Ensures that the reset signal is not generated immediately after power-up, allowing the system to stabilize.

Advantages and Disadvantages

Advantages

• Low-power consumption makes it suitable for battery-powered applications.
• Wide operating voltage range allows for versatile use.
• Small package size enables space-saving designs.
• High accuracy ensures reliable voltage monitoring.

Disadvantages

• The reset timeout period may not be adjustable, limiting flexibility in certain applications.
• Limited availability of alternative models with different threshold voltages.

Working Principles

The TPS3820-50DBVR operates by continuously monitoring the input voltage. When the voltage falls below the threshold, it generates a reset signal to ensure proper system operation. The reset signal remains active until the voltage rises above the threshold, indicating stable power supply.

Detailed Application Field Plans

The TPS3820-50DBVR finds applications in various fields, including:

1. Microcontrollers: Ensuring reliable operation by monitoring the supply voltage and generating resets when necessary.
2. Industrial Control Systems: Providing voltage supervision to prevent malfunctions and ensure system integrity.
3. Automotive Electronics: Monitoring critical voltage levels to avoid potential damage or failures.
4. Battery-Powered Devices: Optimizing battery life by detecting low voltage conditions and initiating appropriate actions.

Detailed and Complete Alternative Models

While the TPS3820-50DBVR is a popular choice, there are alternative models available with different threshold voltages. Some notable alternatives include:

1. TPS3820-33DBVR: Threshold voltage of 3.3V.
2. TPS3820-25DBVR: Threshold voltage of 2.5V.
3. TPS3820-12DBVR: Threshold voltage of 1.2V.

These alternative models provide flexibility in voltage monitoring for specific application requirements.

In conclusion, the TPS3820-50DBVR is a voltage supervisor that offers accurate and reliable voltage monitoring capabilities. Its low-power consumption, wide operating voltage range, and small package size make it suitable for various applications. However, the fixed reset timeout period and limited availability of alternative models with different threshold voltages should be considered when selecting this product.