TPS3809K33DBVR

Overview

Product Category

The TPS3809K33DBVR belongs to the category of voltage supervisors.

Use

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

Characteristics

• Voltage supervisors ensure that the system operates within specified voltage limits.
• The TPS3809K33DBVR offers accurate voltage monitoring with a threshold voltage of 3.3V.
• It provides a reset signal when the monitored voltage falls below the threshold.
• This device has a low quiescent current, making it suitable for battery-powered applications.

Package

The TPS3809K33DBVR comes in a small SOT-23 package, which is widely used in the electronics industry.

Essence

The essence of the TPS3809K33DBVR lies in its ability to monitor voltage levels and provide a reset signal when necessary, ensuring the proper functioning of electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.5V
• Threshold Voltage: 3.3V
• Quiescent Current: 2µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active Low

Pin Configuration

The TPS3809K33DBVR has the following pin configuration:

```

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| | --| VDD | --| GND | --| MR | --| RESET | |___________| ```

• VDD: Power supply input
• GND: Ground reference
• MR: Manual reset input
• RESET: Reset output

Functional Features

• Accurate voltage monitoring: The TPS3809K33DBVR ensures precise monitoring of the system voltage.
• Reset signal generation: It provides a reset signal when the monitored voltage falls below the threshold.
• Low quiescent current: The device consumes minimal current, making it suitable for low-power applications.
• Manual reset capability: The MR pin allows for manual reset control.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures system stability.
• Low quiescent current minimizes power consumption.
• Small package size enables space-saving designs.
• Manual reset capability offers flexibility in system control.

Disadvantages

• Limited threshold voltage options may not suit all applications.
• Lack of advanced features compared to more specialized voltage supervisors.

Working Principles

The TPS3809K33DBVR operates by continuously monitoring the input voltage. When the voltage drops below the threshold level (3.3V), the device generates a reset signal. This signal can be used to initiate system resets or trigger specific actions based on the application requirements.

Detailed Application Field Plans

The TPS3809K33DBVR finds applications in various electronic systems that require reliable voltage monitoring and reset functionality. Some potential application fields include:

1. Microcontrollers: Ensuring stable power supply and initiating system resets in microcontroller-based systems.
2. Embedded Systems: Monitoring voltage levels in embedded systems to prevent data corruption or system failures.
3. Battery-Powered Devices: Protecting battery-powered devices from undervoltage conditions and optimizing power management.
4. Industrial Control Systems: Providing voltage supervision in industrial control systems to maintain operational integrity.

Detailed and Complete Alternative Models

1. TPS3808G01DBVR: Similar to TPS3809K33DBVR but with a threshold voltage of 2.93V.
2. TPS3836H30DBVR: Voltage supervisor with a higher threshold voltage of 3.0V.
3. TPS3890DBVR: Advanced voltage supervisor with additional features such as adjustable threshold voltage and watchdog timer functionality.

These alternative models offer different threshold voltage options and additional features to cater to diverse application requirements.

In conclusion, the TPS3809K33DBVR is a voltage supervisor that provides accurate monitoring and reset functionality for electronic systems. Its low quiescent current, small package size, and manual reset capability make it suitable for various applications. However, it may not be suitable for all voltage threshold requirements, and more advanced alternatives are available in the market.