TPS3839A09DQNT

Product Overview

Category

The TPS3839A09DQNT belongs to the category of voltage supervisors.

Use

This product is primarily used for monitoring and supervising the voltage levels in electronic systems.

Characteristics

• Voltage threshold: 0.9V
• Accuracy: ±1%
• Supply current: 5 µA (typical)
• Operating temperature range: -40°C to +125°C
• Power supply voltage range: 1.6V to 6.5V
• Low quiescent current
• Adjustable reset time delay
• Small package size

Package

The TPS3839A09DQNT is available in a small SOT-23 package, which makes it suitable for space-constrained applications.

Essence

The essence of the TPS3839A09DQNT is its ability to monitor and control voltage levels, ensuring the proper functioning and reliability of electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Voltage threshold: 0.9V
• Accuracy: ±1%
• Supply current: 5 µA (typical)
• Reset time delay: adjustable
• Operating temperature range: -40°C to +125°C
• Power supply voltage range: 1.6V to 6.5V
• Package type: SOT-23

Detailed Pin Configuration

The TPS3839A09DQNT has the following pin configuration:

• Pin 1: GND (Ground)
• Pin 2: VDD (Power supply)
• Pin 3: RESET (Reset output)

Functional Features

• Voltage monitoring: The TPS3839A09DQNT continuously monitors the input voltage and provides a reset signal when it falls below the threshold.
• Adjustable reset time delay: The reset time delay can be adjusted to meet specific system requirements.
• Low quiescent current: The product consumes minimal current during operation, ensuring energy efficiency.
• Wide operating temperature range: The TPS3839A09DQNT can operate reliably in extreme temperature conditions.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring
• Adjustable reset time delay
• Low power consumption
• Small package size
• Wide operating temperature range

Disadvantages

• Limited voltage threshold options
• Not suitable for high-voltage applications

Working Principles

The TPS3839A09DQNT works by comparing the input voltage with a preset threshold. When the voltage falls below the threshold, the device triggers a reset signal. This ensures that the system is properly reset and prevents any potential malfunctions due to low voltage levels.

Detailed Application Field Plans

The TPS3839A09DQNT finds applications in various fields, including:

1. Battery-powered devices: It can be used to monitor battery voltage and initiate a reset when the voltage drops below a certain level, preventing damage to the battery or the device itself.
2. Industrial automation: The product can be employed in control systems to monitor power supply voltages and ensure uninterrupted operation.
3. Automotive electronics: It can be utilized in automotive systems to monitor critical voltage levels and trigger appropriate actions to prevent system failures.

Detailed and Complete Alternative Models

1. TPS3839K33DBVT: Similar to the TPS3839A09DQNT but with a different voltage threshold (3.3V).
2. TPS3839L30DBVR: Another alternative with a voltage threshold of 3.0V.
3. TPS3839M25DBVR: Similar to the TPS3839A09DQNT but with a voltage threshold of 2.5V.

These alternative models provide flexibility in choosing the appropriate voltage threshold for specific applications.

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