TPS2552DBVT - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The TPS2552DBVT is a power distribution switch designed for use in various electronic devices. It provides protection against overcurrent and short-circuit conditions, ensuring the safe operation of the connected components.

Characteristics: - Overcurrent and short-circuit protection - Low quiescent current - Fast response time - Wide input voltage range - Adjustable current limit - Thermal shutdown protection

Package: SOT-23 (DBV)

Essence: The TPS2552DBVT is an essential component in electronic devices that require reliable power distribution and protection mechanisms. It ensures the smooth functioning of the connected components by preventing damage caused by excessive current or short-circuits.

Packaging/Quantity: The TPS2552DBVT is typically available in tape and reel packaging, with a quantity of 3000 units per reel.

Specifications

• Input Voltage Range: 2.7V to 18V
• Current Limit Range: 500mA to 3A
• Quiescent Current: 10µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS2552DBVT features a SOT-23 package with three pins:

1. VIN: Input voltage pin
2. GND: Ground pin
3. VOUT: Output voltage pin

Functional Features

1. Overcurrent Protection: The TPS2552DBVT monitors the current flowing through it and shuts off the output when the current exceeds the set limit.
2. Short-Circuit Protection: In the event of a short-circuit, the TPS2552DBVT quickly detects the fault and disconnects the output to prevent damage.
3. Adjustable Current Limit: The current limit of the TPS2552DBVT can be adjusted according to the requirements of the application.
4. Thermal Shutdown Protection: If the device temperature exceeds a safe threshold, the TPS2552DBVT automatically shuts down to prevent overheating.

Advantages and Disadvantages

Advantages: - Provides reliable overcurrent and short-circuit protection - Low quiescent current minimizes power consumption - Wide input voltage range allows for versatile applications - Adjustable current limit offers flexibility in different scenarios - Fast response time ensures quick fault detection and protection

Disadvantages: - Limited maximum current limit range (up to 3A) - SOT-23 package may not be suitable for all applications requiring higher power handling capabilities

Working Principles

The TPS2552DBVT operates by continuously monitoring the current flowing through it. When the current exceeds the set limit, it triggers the internal protection circuitry, which disconnects the output to prevent damage to the connected components. The device also incorporates thermal shutdown protection to safeguard against excessive heat.

Detailed Application Field Plans

The TPS2552DBVT finds applications in various electronic devices that require power distribution and protection, such as: - Mobile phones and tablets - Portable gaming consoles - USB charging hubs - Battery-powered devices - Industrial control systems

Detailed Alternative Models

1. TPS2552DRBT: Similar to TPS2552DBVT, but available in a different package (SON-8).
2. TPS2552DRCR: Similar to TPS2552DBVT, but with a higher current limit range (up to 5A).
3. TPS2552DRLT: Similar to TPS2552DBVT, but with a lower quiescent current (5µA typical).

These alternative models offer different package options, higher current limits, and lower quiescent currents to cater to specific application requirements.

In conclusion, the TPS2552DBVT is a versatile power distribution switch that provides reliable overcurrent and short-circuit protection. Its adjustable current limit, low quiescent current, and thermal shutdown protection make it suitable for various electronic devices. However, it is important to consider alternative models based on specific application needs.