TPS2550DBVR

Product Overview

Category

The TPS2550DBVR belongs to the category of voltage supervisors and reset ICs.

Use

This product is primarily used for monitoring and controlling the voltage levels in electronic circuits, ensuring stable and reliable operation.

Characteristics

• Voltage supervision: The TPS2550DBVR provides accurate monitoring of input voltage levels.
• Reset function: It offers a reset signal to the system when the voltage falls below a specified threshold.
• Low power consumption: This IC operates with low power consumption, making it suitable for battery-powered devices.
• Small package size: The TPS2550DBVR comes in a small SOT-23 package, enabling space-efficient designs.
• Wide operating temperature range: It can operate reliably across a wide temperature range, from -40°C to 125°C.

Package and Quantity

The TPS2550DBVR is available in a SOT-23 package. It is typically sold in reels containing 3000 units.

Specifications

• Input voltage range: 2.5V to 6.5V
• Output voltage: Same as input voltage
• Quiescent current: 10µA (typical)
• Power-on reset time: 20ms (typical)
• Operating temperature range: -40°C to 125°C

Pin Configuration

The TPS2550DBVR has the following pin configuration:

____ EN | | VOUT GND| | VIN NC |____| PGND

• EN: Enable pin for controlling the device's operation.
• VOUT: Output pin that provides the monitored voltage level.
• VIN: Input pin for connecting the power supply.
• GND: Ground pin for reference potential.
• NC: No connection pin.
• PGND: Power ground pin for internal circuitry.

Functional Features

1. Voltage Monitoring: The TPS2550DBVR continuously monitors the input voltage and provides an accurate representation of the voltage level.
2. Reset Function: When the input voltage falls below a specified threshold, the IC generates a reset signal to ensure proper system operation.
3. Low Power Consumption: With its low quiescent current, this IC minimizes power consumption, making it suitable for battery-powered applications.
4. Fast Power-On Reset: The TPS2550DBVR quickly stabilizes the output voltage within 20ms after power-on, ensuring a reliable start-up.
5. Overvoltage Protection: It incorporates overvoltage protection, safeguarding the connected circuitry from potential damage.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring ensures stable system operation.
• Small package size allows for space-efficient designs.
• Wide operating temperature range enables usage in various environments.
• Low power consumption prolongs battery life in portable devices.
• Fast power-on reset reduces start-up time.

Disadvantages

• Limited input voltage range (2.5V to 6.5V).
• No built-in undervoltage protection feature.

Working Principles

The TPS2550DBVR operates by continuously monitoring the input voltage through its VIN pin. It compares the voltage level with a predefined threshold. If the voltage falls below this threshold, the IC generates a reset signal on the EN pin, indicating a power failure or unstable voltage condition. This reset signal can be used to trigger appropriate actions in the system, such as restarting or entering a safe state.

Application Field Plans

The TPS2550DBVR finds applications in various electronic systems that require voltage monitoring and reset functionality. Some potential application fields include:

1. Battery-Powered Devices: Portable electronics, such as smartphones, tablets, and wearables, can benefit from the TPS2550DBVR's low power consumption and voltage monitoring capabilities.
2. Industrial Control Systems: The IC can be used in industrial control systems to monitor and reset voltage levels, ensuring reliable operation of machinery and equipment.
3. Automotive Electronics: In automotive applications, the TPS2550DBVR can provide voltage supervision and reset functionality for critical systems like engine control units (ECUs) and safety modules.
4. Home Automation: Smart home devices, including thermostats, security systems, and lighting controls, can utilize this IC for voltage monitoring and system reset purposes.

Alternative Models

1. TPS2550DRVR: Similar to TPS2550DBVR but available in a different package (SON-6).
2. TPS2550DRCR: Another alternative with an extended input voltage range (2.5V to 16V) and additional undervoltage lockout feature.

These alternative models offer similar functionality to the TPS2550DBVR but may have variations in package type, input voltage range, or additional features.

In conclusion, the TPS2550DBVR is a