TPS3103H20DBVRG4

Overview

Product Category

The TPS3103H20DBVRG4 belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This IC is primarily used for voltage monitoring and supervisory functions in various electronic systems. It ensures reliable operation by monitoring the supply voltage and generating reset signals when necessary.

Characteristics

• Low-power consumption: The TPS3103H20DBVRG4 is designed to operate with minimal power consumption, making it suitable for battery-powered applications.
• Wide input voltage range: It can handle a wide range of input voltages, typically from 0.9V to 5.5V.
• Adjustable threshold voltage: The IC allows users to set the desired threshold voltage for voltage monitoring.
• Small package size: The TPS3103H20DBVRG4 comes in a small SOT-23 package, which makes it suitable for space-constrained applications.

Package and Quantity

The TPS3103H20DBVRG4 is available in a SOT-23-5 package. It is typically sold in reels, with each reel containing 3000 units.

Specifications

• Supply Voltage Range: 0.9V to 5.5V
• Threshold Voltage Range: 0.6V to VDD
• Operating Temperature Range: -40°C to +85°C
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 1.5µA (typical)

Pin Configuration

The TPS3103H20DBVRG4 has a total of five pins arranged as follows:

____ VDD| |GND RST| |MR VIT|____|

• VDD: Power supply input pin
• GND: Ground reference pin
• RST: Reset output pin
• MR: Manual reset input pin
• VIT: Voltage input pin

Functional Features

1. Voltage Monitoring: The TPS3103H20DBVRG4 continuously monitors the input voltage and compares it with the user-defined threshold voltage.
2. Reset Generation: When the input voltage falls below the threshold, the IC generates a reset signal to ensure proper system operation.
3. Adjustable Timeout Period: The reset timeout period can be adjusted according to the application requirements.
4. Manual Reset Input: The MR pin allows for manual reset control, enabling system reset without relying solely on the monitored voltage.

Advantages and Disadvantages

Advantages

• Low power consumption makes it suitable for battery-powered applications.
• Wide input voltage range provides flexibility in various systems.
• Adjustable threshold voltage allows customization.
• Small package size enables use in space-constrained designs.

Disadvantages

• Limited reset timeout period range may not meet the requirements of all applications.
• Lack of advanced features found in more specialized voltage monitoring ICs.

Working Principles

The TPS3103H20DBVRG4 operates by continuously monitoring the input voltage through the VIT pin. It compares the voltage with the user-defined threshold voltage set using external resistors. If the input voltage falls below the threshold, the IC generates a reset signal on the RST pin. The reset signal remains active until the input voltage rises above the threshold or the timeout period elapses.

Application Field Plans

The TPS3103H20DBVRG4 finds applications in various electronic systems that require reliable voltage monitoring and reset generation. Some potential application fields include:

1. Battery-Powered Devices: Portable devices such as smartphones, tablets, and wearables can benefit from the low-power consumption and wide input voltage range of the TPS3103H20DBVRG4.
2. Industrial Control Systems: The IC can be used in industrial control systems to monitor power supply voltages and ensure proper operation.
3. Automotive Electronics: In automotive applications, the TPS3103H20DBVRG4 can provide voltage monitoring and reset generation for critical components like microcontrollers and sensors.

Alternative Models

1. TPS3103H30DBVRG4: Similar to the TPS3103H20DBVRG4 but with a higher threshold voltage range.
2. TPS3103K33DBVRG4: A variant with a fixed threshold voltage of 3.3V, suitable for specific applications requiring a constant threshold.

These alternative models offer similar functionality but cater to different voltage requirements or specific use cases.

In conclusion, the TPS3103H20DBVRG4 is an integrated circuit belonging to the power management IC category. It provides voltage monitoring and reset generation functions with low power consumption and a wide input voltage range. Its small package size makes it suitable for space-constrained designs. While it has