TPS2551DBVR

Product Overview

Category

The TPS2551DBVR belongs to the category of integrated circuits (ICs) and specifically falls under the power management ICs.

Use

This product is primarily used for power distribution and protection in various electronic devices and systems.

Characteristics

• The TPS2551DBVR is a high-performance, single-channel power-distribution switch.
• It offers an adjustable current-limiting feature to protect the system from excessive current draw.
• The device operates within a wide input voltage range, making it suitable for diverse applications.
• It provides a low on-resistance, minimizing power dissipation and maximizing efficiency.
• The TPS2551DBVR has a fast response time, ensuring quick shutdown in case of fault conditions.

Package and Quantity

The TPS2551DBVR is available in a small SOT-23 package. It is typically sold in reels containing 3000 units.

Specifications

• Input Voltage Range: 2.7V to 6.5V
• Adjustable Current Limit: 100mA to 500mA
• On-Resistance: 80mΩ (typical)
• Quiescent Current: 10µA (maximum)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS2551DBVR features a 5-pin SOT-23 package with the following pin configuration:

1. EN (Enable): Controls the switch operation.
2. IN (Input): Connects to the input voltage source.
3. OUT (Output): Connects to the load or downstream circuitry.
4. GND (Ground): Common ground reference.
5. ILIM (Current Limit): Sets the desired current limit.

Functional Features

• Overcurrent Protection: The TPS2551DBVR incorporates an adjustable current-limiting feature to protect the system from excessive current draw.
• Fast Response Time: In case of a fault condition, the device quickly shuts down to prevent damage to the load or downstream circuitry.
• Low On-Resistance: The low on-resistance of the switch minimizes power dissipation and ensures efficient power distribution.
• Wide Input Voltage Range: The TPS2551DBVR operates within a wide input voltage range, making it suitable for various applications.

Advantages and Disadvantages

Advantages

• Adjustable current limit allows customization based on specific application requirements.
• Fast response time ensures prompt protection against fault conditions.
• Low on-resistance results in minimal power dissipation and improved efficiency.
• Wide input voltage range enhances versatility and compatibility.

Disadvantages

• Limited maximum current handling capability compared to higher-rated devices.
• SOT-23 package may not be suitable for applications requiring higher power dissipation.

Working Principles

The TPS2551DBVR functions as a power-distribution switch by controlling the flow of current between the input and output terminals. It utilizes an internal MOSFET transistor to regulate the current passing through the switch. The adjustable current-limiting feature protects the system by limiting the maximum current that can flow through the switch. When the current exceeds the set limit, the device quickly shuts down to prevent damage to the load or downstream circuitry.

Application Field Plans

The TPS2551DBVR finds extensive use in various electronic systems and devices, including but not limited to: - Portable consumer electronics (e.g., smartphones, tablets) - Battery-powered devices - USB-powered devices - Industrial control systems - Automotive electronics - IoT devices

Alternative Models

For users seeking alternative options, the following models provide similar functionality to the TPS2551DBVR: - TPS2552DBVR - TPS2553DBVR - TPS2554DBVR - TPS2555DBVR

These models offer comparable features and specifications, allowing users to choose the most suitable option for their specific application requirements.

In conclusion, the TPS2551DBVR is a high-performance power-distribution switch that offers adjustable current limiting, low on-resistance, and fast response time. It finds applications in various electronic systems and devices, providing efficient power distribution and protection.