TPS3306-20QDRQ1

Product Overview

Category

The TPS3306-20QDRQ1 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 supervising the voltage levels in electronic systems, ensuring their proper functioning and preventing potential damage caused by voltage fluctuations.

Characteristics

• Voltage supervision range: The TPS3306-20QDRQ1 operates within a wide voltage range, making it suitable for various applications.
• Low power consumption: This IC consumes minimal power, making it energy-efficient and suitable for battery-powered devices.
• High accuracy: The TPS3306-20QDRQ1 provides precise voltage monitoring, ensuring reliable system operation.
• Fast response time: With its quick response time, this IC can promptly detect voltage deviations and trigger appropriate actions.

Package

The TPS3306-20QDRQ1 is available in a small outline package (SOIC) with 8 pins. This compact form factor allows for easy integration into different circuit designs.

Essence

The essence of the TPS3306-20QDRQ1 lies in its ability to monitor and supervise voltage levels, providing crucial protection to electronic systems against voltage-related issues.

Packaging/Quantity

This product is typically sold in reels or tubes, containing a specific quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply voltage range: 2.5V to 10V
• Operating temperature range: -40°C to +125°C
• Quiescent current: 15µA (typical)
• Threshold voltage options: 2.32V, 2.5V, 3.08V, 4.38V, and adjustable
• Output options: Active high, active low, and open-drain

Detailed Pin Configuration

The TPS3306-20QDRQ1 features the following pin configuration:

1. GND (Ground): Connected to the ground reference of the system.
2. VDD (Supply Voltage): Power supply input for the IC.
3. MR (Master Reset): Active-low reset input used to initiate a system reset.
4. RESET (Reset Output): Open-drain output that indicates a system reset when pulled low.
5. TH (Threshold): Input pin used to set the desired voltage threshold for monitoring.
6. VIT (Voltage Input): Monitored voltage input.
7. NC (No Connect): This pin is not connected and should be left unconnected.
8. VCC (Voltage Output): Output pin providing the monitored voltage level.

Functional Features

• Undervoltage detection: The TPS3306-20QDRQ1 can detect when the monitored voltage falls below the set threshold, triggering a reset signal.
• Power-on reset: Upon power-up, this IC generates a reset signal to ensure a controlled start-up of the system.
• Adjustable threshold: The threshold voltage can be set using an external resistor, allowing flexibility in voltage monitoring.
• Manual reset capability: The master reset input allows for manual initiation of a system reset when required.

Advantages and Disadvantages

Advantages

• Wide operating voltage range enables compatibility with various systems.
• Low power consumption contributes to energy efficiency.
• High accuracy ensures reliable voltage monitoring.
• Fast response time allows for quick detection of voltage deviations.

Disadvantages

• Limited number of threshold voltage options may restrict certain applications requiring specific thresholds.
• Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The TPS3306-20QDRQ1 operates by comparing the monitored voltage (VIT) with the set threshold voltage (TH). When VIT falls below TH, the reset output (RESET) is activated, indicating a system reset. The IC continuously monitors the voltage and maintains the reset signal until VIT rises above the threshold.

Detailed Application Field Plans

The TPS3306-20QDRQ1 finds applications in various electronic systems where voltage monitoring and supervision are critical. Some potential application fields include:

1. Power supply units: Ensuring stable voltage levels in power supplies to prevent damage to connected devices.
2. Automotive electronics: Monitoring voltage levels in automotive systems to protect sensitive components from voltage fluctuations.
3. Industrial control systems: Providing voltage supervision in industrial automation systems to maintain reliable operation.
4. Battery-powered devices: Protecting battery-powered devices by monitoring voltage levels and preventing over-discharge.

Detailed and Complete Alternative Models

1. TPS3307-33QDRQ1: Similar to TPS3306-20QDRQ1 but with a fixed threshold voltage of 3.3V.
2. MAX823LEUK+: Voltage supervisor IC with adjustable threshold voltage and