TPS2551DBVRG4

Product Overview

Category

The TPS2551DBVRG4 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 TPS2551DBVRG4 is a high-performance, single-channel power-distribution switch.
• It offers a low ON-state resistance, enabling efficient power delivery.
• The device provides overcurrent protection, preventing damage to downstream components.
• It features an adjustable current limit, allowing flexibility in different applications.
• The TPS2551DBVRG4 has a wide input voltage range, making it suitable for diverse power supply designs.

Package and Quantity

The TPS2551DBVRG4 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 Range: 500mA to 3A
• ON-State Resistance: 40mΩ (typical)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 20µA (typical)

Pin Configuration

The TPS2551DBVRG4 has the following pin configuration:

```

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| | --| EN | --| IN | --| OUT | --| GND | |___________| ```

• EN: Enable pin for controlling the switch operation.
• IN: Input pin for connecting the power source.
• OUT: Output pin for supplying power to the load.
• GND: Ground reference pin.

Functional Features

• Overcurrent Protection: The TPS2551DBVRG4 incorporates a current-limiting feature that protects the load from excessive current.
• Adjustable Current Limit: The device allows users to set the desired current limit within a specified range, providing flexibility in different applications.
• Fast Response Time: The TPS2551DBVRG4 offers a quick response time to protect downstream components during fault conditions.
• Low Power Consumption: With a low quiescent current, the device minimizes power loss and extends battery life in portable applications.

Advantages and Disadvantages

Advantages

• Efficient power delivery due to low ON-state resistance.
• Wide input voltage range enables compatibility with various power supply designs.
• Adjustable current limit provides flexibility for different load requirements.
• Overcurrent protection prevents damage to downstream components.

Disadvantages

• Limited maximum current limit of 3A may not be suitable for high-power applications.
• SOT-23 package may require additional thermal considerations for dissipating heat.

Working Principles

The TPS2551DBVRG4 operates as a power-distribution switch by controlling the flow of current from the input to the output. When the enable pin (EN) is high, the switch is turned on, allowing current to flow from the input (IN) to the output (OUT). If the current exceeds the set limit, the device activates the overcurrent protection, disabling the switch to prevent damage to the load.

Detailed Application Field Plans

The TPS2551DBVRG4 finds application in various electronic systems, including: 1. Portable devices such as smartphones, tablets, and portable gaming consoles. 2. Industrial control systems and automation equipment. 3. Automotive electronics for power distribution and protection. 4. Battery-powered devices like wireless sensors and IoT devices. 5. Consumer electronics such as digital cameras, MP3 players, and e-readers.

Detailed and Complete Alternative Models

1. TPS2551DRVR: Similar to TPS2551DBVRG4, but available in a small SOT-23 package.
2. TPS2551DRCR: Similar to TPS2551DBVRG4, but available in a 6-pin WSON package.
3. TPS2551DRCRG4: Similar to TPS2551DRCR, but with improved performance and reliability.

These alternative models offer similar functionality and characteristics, providing options for different packaging requirements or enhanced specifications.

In conclusion, the TPS2551DBVRG4 is a high-performance power-distribution switch that offers overcurrent protection, adjustable current limit, and low ON-state resistance. It finds application in various electronic devices and systems, providing efficient power delivery and safeguarding downstream components.