TPS3306-25DG4

Product Overview

Category

The TPS3306-25DG4 belongs to the category of integrated circuits (ICs) and specifically falls under the family of voltage supervisors.

Use

This product is primarily used for monitoring and controlling the power supply voltage in electronic systems. It ensures that the voltage remains within a specified range, providing protection against overvoltage or undervoltage conditions.

Characteristics

• Voltage Range: The TPS3306-25DG4 operates within a voltage range of 2.5V to 6V.
• Low Power Consumption: It consumes minimal power during operation, making it suitable for battery-powered devices.
• Adjustable Threshold: The voltage threshold can be adjusted to suit specific system requirements.
• Reset Delay: The IC provides a programmable reset delay to allow for stabilization of the power supply before resuming normal operation.

Package

The TPS3306-25DG4 is available in a small surface-mount package known as SOIC-8 (Small Outline Integrated Circuit). This package offers ease of integration into various electronic systems.

Essence

The essence of the TPS3306-25DG4 lies in its ability to monitor and control the power supply voltage, ensuring stable and reliable operation of electronic devices.

Packaging/Quantity

The TPS3306-25DG4 is typically sold in reels containing 2500 units per reel. This packaging format is commonly used for automated assembly processes.

Specifications

• Supply Voltage Range: 2.5V to 6V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 10µA (typical)
• Reset Threshold Accuracy: ±1.5%
• Reset Timeout Period: Programmable (typically 200ms)

Detailed Pin Configuration

The TPS3306-25DG4 features an 8-pin SOIC package with the following pin configuration:

1. GND (Ground)
2. VDD (Supply Voltage)
3. MR (Manual Reset)
4. RESET (Reset Output)
5. TH (Threshold Adjust)
6. CT (Delay Capacitor)
7. NC (No Connection)
8. NC (No Connection)

Functional Features

• Voltage Monitoring: The TPS3306-25DG4 continuously monitors the power supply voltage and compares it to a preset threshold.
• Reset Generation: When the voltage falls below or exceeds the threshold, the IC generates a reset signal to initiate system reset or shutdown.
• Adjustable Threshold: The threshold voltage can be adjusted using an external resistor divider network connected to the TH pin.
• Programmable Reset Delay: The CT pin allows for programming the reset delay period, ensuring sufficient stabilization time before resuming normal operation.

Advantages and Disadvantages

Advantages

• Provides reliable protection against overvoltage and undervoltage conditions.
• Low power consumption makes it suitable for battery-powered applications.
• Adjustable threshold allows customization for different system requirements.
• Programmable reset delay ensures stability during power fluctuations.

Disadvantages

• Limited voltage range of 2.5V to 6V may not be suitable for all applications.
• Requires additional external components for proper functionality.

Working Principles

The TPS3306-25DG4 operates by continuously monitoring the power supply voltage. It compares the voltage level to a preset threshold value. If the voltage falls below or exceeds this threshold, the IC generates a reset signal. This signal can be used to initiate a system reset or trigger a shutdown sequence, protecting the electronic system from potential damage caused by unstable voltages.

The threshold voltage can be adjusted using an external resistor divider network connected to the TH pin. Additionally, the CT pin allows for programming the reset delay period, ensuring that the power supply stabilizes before resuming normal operation.

Detailed Application Field Plans

The TPS3306-25DG4 finds applications in various electronic systems where voltage monitoring and control are critical. Some of the potential application fields include:

1. Power Supply Units (PSUs): The IC can be used in PSUs to ensure stable output voltages and protect sensitive components from voltage fluctuations.
2. Industrial Control Systems: It can be employed in industrial control systems to monitor and regulate power supply voltages, preventing damage to equipment.
3. Automotive Electronics: The TPS3306-25DG4 can be utilized in automotive electronics to safeguard sensitive components from voltage variations caused by engine start-up or other electrical disturbances.
4. Battery-Powered Devices: It is suitable for battery-powered devices such as portable medical equipment, ensuring efficient power management and protection against voltage anomalies.

Detailed and Complete Alternative Models

1. TPS3307-33DG4: Similar to the TPS3306-25DG4, this model operates within a voltage range of 3.3V and offers comparable features and functionality.