TPS3839G12DQNR

Product Overview

Category

The TPS3839G12DQNR belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage threshold: 3.08V
• Accuracy: ±1%
• Quiescent current: 2.5µA (typical)
• Operating temperature range: -40°C to +125°C
• Power supply voltage range: 1.8V to 10V
• Output type: Active low, push-pull

Package

The TPS3839G12DQNR comes in a small SOT-23-5 package.

Essence

This voltage supervisor is designed to ensure stable and reliable operation of electronic systems by monitoring the power supply voltage and generating an output signal when it falls below a certain threshold.

Packaging/Quantity

The TPS3839G12DQNR is typically packaged in reels, with 3000 units per reel.

Specifications

• Supply voltage range: 1.8V to 10V
• Threshold voltage: 3.08V
• Accuracy: ±1%
• Quiescent current: 2.5µA (typical)
• Power-on reset delay time: 200ms (typical)
• Operating temperature range: -40°C to +125°C
• Output type: Active low, push-pull
• Package type: SOT-23-5

Detailed Pin Configuration

The TPS3839G12DQNR has the following pin configuration:

1. GND (Ground)
2. VDD (Power supply voltage)
3. MR (Manual reset input)
4. RESET (Output)
5. NC (No connection)

Functional Features

• Monitors power supply voltage and generates a reset signal when it falls below the threshold.
• Provides a manual reset input for system initialization.
• Active low, push-pull output for easy integration with other components.
• Low quiescent current ensures minimal power consumption.

Advantages

• Accurate voltage monitoring helps prevent system malfunctions and damage.
• Wide operating temperature range allows for use in various environments.
• Small package size enables space-efficient designs.
• Low quiescent current minimizes power consumption.

Disadvantages

• The TPS3839G12DQNR may not be suitable for applications requiring higher voltage thresholds.
• Limited pin configuration options may restrict certain system designs.

Working Principles

The TPS3839G12DQNR operates by continuously monitoring the power supply voltage. When the voltage falls below the threshold of 3.08V, the device generates a reset signal on the RESET pin. This signal can be used to initiate system resets or trigger specific actions based on the application requirements.

Detailed Application Field Plans

The TPS3839G12DQNR is commonly used in various electronic systems where stable voltage levels are critical. Some typical application fields include:

1. Microcontrollers: Ensuring reliable operation by monitoring power supply voltage.
2. Industrial automation: Preventing system failures due to voltage fluctuations.
3. Automotive electronics: Protecting sensitive components from voltage drops.
4. Battery-powered devices: Extending battery life by efficiently managing power supply.

Detailed and Complete Alternative Models

1. TPS3839K33DBVR: Similar voltage supervisor with a different threshold voltage (3.3V).
2. TPS3839L30DBVR: Voltage supervisor with a lower threshold voltage (3.0V).
3. TPS3839M25DBVR: Voltage supervisor with a higher threshold voltage (2.5V).

These alternative models offer flexibility in choosing the appropriate voltage threshold for specific applications while maintaining similar functionality to the TPS3839G12DQNR.

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