TPS3307-33DRG4

Product Overview

Category

The TPS3307-33DRG4 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 range: 3.3V
• Low quiescent current consumption
• Wide operating temperature range
• Adjustable reset time delay
• Power-on reset generator
• Watchdog timer

Package

The TPS3307-33DRG4 comes in a small outline package (SOT-23) which is suitable for surface mount applications.

Essence

The essence of the TPS3307-33DRG4 is its ability to provide accurate voltage monitoring and reset generation, ensuring reliable operation of electronic systems.

Packaging/Quantity

The TPS3307-33DRG4 is typically packaged in reels, with 3000 units per reel.

Specifications

• Supply voltage range: 2.5V to 10V
• Reset threshold voltage: 3.3V
• Quiescent current: 15µA (typical)
• Operating temperature range: -40°C to +85°C
• Reset timeout period: Adjustable from 1ms to 640ms

Pin Configuration

The TPS3307-33DRG4 has the following pin configuration:

```

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| | --| VDD GND |-- Pin 1: Ground --| RESET OUT |-- Pin 2: Reset Output --| MR |-- Pin 3: Manual Reset Input --| VDD |-- Pin 4: Supply Voltage |___________| ```

Functional Features

1. Voltage Monitoring: The TPS3307-33DRG4 continuously monitors the supply voltage and generates a reset signal when the voltage drops below the specified threshold.

2. Reset Generation: Upon detecting a voltage drop, the TPS3307-33DRG4 generates a reset signal to ensure proper system initialization and reliable operation.

3. Adjustable Reset Time Delay: The reset time delay can be adjusted using an external capacitor, allowing flexibility in system-specific requirements.

4. Power-On Reset Generator: The TPS3307-33DRG4 includes a power-on reset generator that ensures a controlled startup sequence for the electronic system.

5. Watchdog Timer: This feature allows the TPS3307-33DRG4 to monitor the activity of the system and generate a reset signal if it detects a fault or malfunction.

Advantages

• Accurate voltage monitoring and reset generation
• Low quiescent current consumption, minimizing power consumption
• Wide operating temperature range, suitable for various environments
• Adjustable reset time delay for customization
• Power-on reset generator ensures reliable system startup
• Watchdog timer enhances system reliability

Disadvantages

• Limited to a specific voltage threshold (3.3V)
• Requires additional external components for certain functionalities

Working Principles

The TPS3307-33DRG4 operates by continuously monitoring the supply voltage. When the voltage drops below the preset threshold (3.3V), it triggers the reset output, initiating a system reset. The reset time delay can be adjusted using an external capacitor, allowing customization based on specific system requirements. Additionally, the TPS3307-33DRG4 incorporates a power-on reset generator and a watchdog timer to enhance system reliability.

Application Field Plans

The TPS3307-33DRG4 finds applications in various fields, including:

1. Embedded Systems: It is commonly used in microcontroller-based systems to ensure reliable operation and prevent data corruption during power fluctuations.

2. Industrial Automation: The TPS3307-33DRG4 is employed in industrial automation systems to monitor and control voltage levels, ensuring uninterrupted operation.

3. Telecommunications: It plays a crucial role in telecommunications equipment, providing voltage supervision and reset generation for stable and reliable performance.

4. Automotive Electronics: The TPS3307-33DRG4 is utilized in automotive electronics to monitor the vehicle's electrical system and initiate resets when necessary.

Alternative Models

1. TPS3307-33DGNR
2. TPS3307-33DGK
3. TPS3307-33DGN

These alternative models offer similar functionality and characteristics to the TPS3307-33DRG4, providing flexibility in choosing the most suitable option for specific applications.

In conclusion, the TPS3307-33DRG4 is a voltage supervisor that ensures accurate voltage monitoring and reset generation in electronic systems. With its adjustable reset time delay, power-on reset generator, and watchdog timer, it offers enhanced reliability and stability. Its applications span across various fields, including embedded systems, industrial automation, telecommunications, and