TPS3305-18DGNR

Product Overview

Category

The TPS3305-18DGNR 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 TPS3305-18DGNR ensures that the voltage levels remain within specified limits.
• Precision: It provides accurate voltage monitoring with a high level of precision.
• 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 range of temperatures.
• Fast response time: The TPS3305-18DGNR quickly detects any voltage deviations and responds accordingly.

Package

The TPS3305-18DGNR comes in a DGN package.

Essence

The essence of the TPS3305-18DGNR is to provide reliable voltage supervision and control in electronic systems.

Packaging/Quantity

The device is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Supply voltage range: 2.7V to 18V
• Threshold voltage: 1.8V
• Operating temperature range: -40°C to +125°C
• Quiescent current: 10µA (typical)
• Output type: Active-low, push-pull
• Power-on reset delay time: 200ms (typical)

Detailed Pin Configuration

The TPS3305-18DGNR has the following pin configuration:

1. GND: Ground connection
2. VDD: Positive supply voltage input
3. MR: Manual reset input
4. RESET: Active-low reset output
5. VIT: Internal voltage reference output

Functional Features

• Voltage monitoring: The TPS3305-18DGNR continuously monitors the input voltage and compares it to the threshold voltage.
• Reset generation: If the input voltage falls below the threshold voltage, the device generates a reset signal to initiate system recovery.
• Manual reset: The MR pin allows for manual reset control, enabling system restart when required.
• Power-on reset delay: The device includes a power-on reset delay circuit to ensure stable operation during power-up.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring
• Low power consumption
• Wide operating temperature range
• Fast response time
• Manual reset capability

Disadvantages

• Limited threshold voltage options
• Requires external components for complete functionality

Working Principles

The TPS3305-18DGNR operates by comparing the input voltage with the threshold voltage. If the input voltage drops below the threshold voltage, indicating a potential fault or instability, the device generates a reset signal. This reset signal can be used to trigger system recovery or initiate appropriate actions to address the voltage deviation.

Detailed Application Field Plans

The TPS3305-18DGNR finds applications in various electronic systems where voltage supervision is critical. Some of the application fields include:

1. Power supply units: Ensuring stable voltage levels in power supply units is crucial for the reliable operation of electronic devices.
2. Industrial automation: Voltage monitoring is essential in industrial automation systems to prevent damage to sensitive equipment.
3. Automotive electronics: The TPS3305-18DGNR can be used in automotive electronics to monitor and control voltage levels in various subsystems.
4. Medical devices: Reliable voltage supervision is vital in medical devices to ensure patient safety and proper functioning.

Detailed and Complete Alternative Models

1. TPS3305-33DGNR: Similar to TPS3305-18DGNR but with a threshold voltage of 3.3V.
2. TPS3305-25DGNR: Similar to TPS3305-18DGNR but with a threshold voltage of 2.5V.
3. TPS3305-15DGNR: Similar to TPS3305-18DGNR but with a threshold voltage of 1.5V.

These alternative models provide different threshold voltage options to suit specific application requirements.

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