TPS3305-18DG4

Product Overview

Category

The TPS3305-18DG4 belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage supervision: The TPS3305-18DG4 ensures that the voltage levels remain within specified limits.
• Reset functionality: It provides a reset signal when the voltage falls below or rises above the desired threshold.
• Low power consumption: The device operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating temperature range: It can function reliably across a wide temperature range, enhancing its versatility.
• Small package size: The TPS3305-18DG4 comes in a compact package, saving space on circuit boards.

Package

The TPS3305-18DG4 is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of the TPS3305-18DG4 lies in its ability to monitor and control voltage levels, ensuring the stability and reliability of electronic systems.

Packaging/Quantity

The TPS3305-18DG4 is typically packaged in reels, with each reel containing a specific quantity of devices. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Supply voltage range: 2.5V to 18V
• Threshold voltage accuracy: ±1%
• Operating temperature range: -40°C to 125°C
• Quiescent current: 10µA (typical)
• Output type: Active-low push-pull

Detailed Pin Configuration

The TPS3305-18DG4 has the following pin configuration:

1. GND (Ground)
2. VDD (Supply voltage)
3. MR (Manual reset input)
4. RESET (Reset output)
5. VIT (Voltage input)
6. GND (Ground)

Functional Features

• Voltage monitoring: The TPS3305-18DG4 continuously monitors the voltage level at the VIT pin.
• Threshold detection: It compares the monitored voltage with a preset threshold and generates a reset signal if the voltage falls below or rises above the threshold.
• Manual reset: The MR pin allows for manual resetting of the device.
• Active-low push-pull output: The RESET pin provides an active-low push-pull output, indicating the status of the voltage level.

Advantages and Disadvantages

Advantages

• Reliable voltage supervision ensures system stability.
• Low power consumption prolongs battery life in portable devices.
• Wide operating temperature range enables usage in various environments.
• Compact package size saves space on circuit boards.

Disadvantages

• Limited to voltage monitoring and reset functionality, may not suit all applications requiring advanced features.
• Requires external components for complete voltage regulation.

Working Principles

The TPS3305-18DG4 operates by continuously monitoring the voltage level at the VIT pin. It compares this voltage with a preset threshold value. If the voltage falls below or rises above the threshold, the device generates a reset signal through the RESET pin. This signal can be used to initiate appropriate actions, such as system shutdown or restart.

Detailed Application Field Plans

The TPS3305-18DG4 finds application in various fields, including but not limited to: 1. Power supply units: Ensuring stable voltage levels in power supply units is crucial for reliable operation. 2. Industrial automation: Monitoring voltage levels in industrial automation systems helps prevent damage and ensure smooth operation. 3. Automotive electronics: Voltage supervision is essential in automotive electronics to maintain proper functioning of critical systems. 4. Consumer electronics: Portable devices, home appliances, and other consumer electronics benefit from voltage monitoring for enhanced reliability.

Detailed and Complete Alternative Models

1. TPS3305-33DG4: Similar to the TPS3305-18DG4, but with a different threshold voltage (3.3V).
2. TPS3305-25DG4: Another variant with a threshold voltage of 2.5V.
3. TPS3305-15DG4: Variant with a lower threshold voltage of 1.5V.

These alternative models provide flexibility in choosing the appropriate threshold voltage for specific applications while maintaining similar functionality to the TPS3305-18DG4.

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