TPS2055DG4

Overview

Category: Integrated Circuits (ICs)

Use: Power Distribution Switches

Characteristics: - High Current Limit - Low On-State Resistance - Fast Overcurrent Response Time - Thermal Shutdown Protection - ESD Protection

Package: SOIC (Small Outline Integrated Circuit)

Essence: The TPS2055DG4 is a power distribution switch designed to provide protection and control for high-current applications.

Packaging/Quantity: The TPS2055DG4 is available in tape and reel packaging, with 2500 units per reel.

Specifications

• Voltage Range: 2.7V to 5.5V
• Current Limit: 1.5A
• On-State Resistance: 70mΩ (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The TPS2055DG4 has the following pin configuration:

```

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

Functional Features

• Enable (EN) Pin: Controls the ON/OFF state of the switch.
• Input (IN) Pin: Connects to the input voltage source.
• Output (OUT) Pin: Connects to the load.
• Ground (GND) Pin: Provides the ground reference for the switch.
• Fault (FAULT) Pin: Indicates overcurrent or thermal shutdown conditions.

Advantages and Disadvantages

Advantages: - High current limit allows for use in demanding applications. - Low on-state resistance minimizes power loss. - Fast overcurrent response time protects the circuitry. - Thermal shutdown protection prevents damage due to excessive heat. - ESD protection enhances reliability.

Disadvantages: - Limited voltage range (2.7V to 5.5V). - Relatively high on-state resistance compared to some alternatives.

Working Principles

The TPS2055DG4 is a power distribution switch that operates 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 an overcurrent condition occurs or the temperature exceeds the thermal shutdown threshold, the fault pin (FAULT) is activated, indicating a fault condition and turning off the switch.

Detailed Application Field Plans

The TPS2055DG4 is commonly used in various applications, including: 1. USB Power Distribution 2. Battery Charging Circuits 3. Portable Devices 4. Industrial Control Systems 5. Automotive Electronics

Detailed and Complete Alternative Models

Some alternative models that can be considered as replacements for the TPS2055DG4 include: - TPS2051 - TPS2052 - TPS2053 - TPS2056

These models offer similar functionality and characteristics, providing flexibility in design choices.

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