TPS2552DDBVT - English Editing Encyclopedia Entry

Product Overview

Category

The TPS2552DDBVT 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 TPS2552DDBVT is a high-performance power-distribution switch.
• It provides overcurrent protection and fault reporting.
• This IC offers low on-resistance, ensuring minimal voltage drop across the switch.
• It operates with a wide input voltage range, making it suitable for diverse applications.
• The device has a compact package, enabling space-efficient integration into electronic designs.

Package and Quantity

The TPS2552DDBVT is available in a small SOT-23-6 package. It is typically sold in reels or tubes, with quantities varying based on the supplier's specifications.

Specifications

• Input Voltage Range: 2.7V to 18V
• Continuous Current Limit: Up to 1.5A
• Operating Temperature Range: -40°C to +85°C
• Fault Reporting: Open-Drain Output
• Quiescent Current: < 1µA (typical)

Pin Configuration

The TPS2552DDBVT features a six-pin SOT-23 package with the following pin configuration:

___________ | | EN |1 6| FAULT IN |2 5| OUT GND |3 4| PGND |___________|

1. EN: Enable pin (Active High)
2. IN: Input voltage pin
3. GND: Ground pin
4. PGND: Power ground pin
5. OUT: Output voltage pin
6. FAULT: Fault reporting pin (Open-Drain)

Functional Features

1. Overcurrent Protection: The TPS2552DDBVT incorporates a current-limiting circuitry that protects the system from excessive current flow, preventing damage to the device and connected components.
2. Fault Reporting: The open-drain fault pin provides an indication when an overcurrent or thermal shutdown event occurs, allowing for timely system response and troubleshooting.
3. Low On-Resistance: The IC offers low on-resistance, minimizing power loss and voltage drop across the switch, resulting in efficient power distribution.
4. Wide Input Voltage Range: With an input voltage range of 2.7V to 18V, the TPS2552DDBVT can be used in various applications with different power supply requirements.

Advantages and Disadvantages

Advantages

• Provides reliable overcurrent protection, safeguarding the system and connected devices.
• Compact package allows for space-efficient integration into electronic designs.
• Wide input voltage range enables versatility in application usage.
• Low on-resistance ensures minimal voltage drop and power loss.

Disadvantages

• Limited maximum continuous current limit of 1.5A may not be suitable for high-power applications.
• Lack of built-in thermal protection may require additional measures to prevent overheating.

Working Principles

The TPS2552DDBVT operates as a power-distribution switch by controlling the flow of current from the input to the output. When the enable pin (EN) is set high, the switch turns on, allowing current to pass through from the input (IN) to the output (OUT). If the current exceeds the set limit, the overcurrent protection circuitry activates, disabling the switch and triggering the fault reporting pin (FAULT). The fault pin provides an open-drain output, indicating the occurrence of an overcurrent or thermal shutdown event.

Detailed Application Field Plans

The TPS2552DDBVT finds applications in various electronic devices and systems, including but not limited to: - Portable electronic devices (e.g., smartphones, tablets) for power distribution and protection. - Battery-powered systems requiring efficient power management and overcurrent protection. - Industrial automation equipment for reliable current control and fault reporting. - Automotive electronics for managing power distribution and protecting sensitive components.

Detailed Alternative Models

1. TPS2552DRVR: Similar to TPS2552DDBVT, but available in a small SOT-23-5 package.
2. TPS2552DRVRE4: Enhanced version of TPS2552DRVR with additional features such as thermal shutdown protection.
3. TPS2552DRVT: Similar to TPS2552DDBVT, but available in a small SOT-23-6 package with a different pin configuration.

These alternative models offer similar functionality and can be considered based on specific design requirements and preferences.

In conclusion, the TPS2552DDBVT is a high-performance power-distribution switch that provides overcurrent protection and