TPS2376D - English Editing Encyclopedia Entry

Product Overview

Use

This IC is primarily used in PoE systems to provide power and data transmission over a single Ethernet cable. It enables the delivery of power to network devices such as IP cameras, wireless access points, and VoIP phones.

Characteristics

Power over Ethernet (PoE) compatible
High efficiency power management
Integrated protection features
Compact package size
Easy integration into existing designs

Package and Quantity

The TPS2376D is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels or tubes containing a specified quantity of ICs per package.

Specifications

Input voltage range: 36V to 57V
Output voltage: Programmable from 3.3V to 12V
Maximum output current: 600mA
Operating temperature range: -40°C to +85°C
Power dissipation: 1.5W (max)

Pin Configuration

The TPS2376D has a total of 8 pins, each serving a specific function:

VDD: Power supply input pin.
GND: Ground reference pin.
VSS: Negative supply voltage pin.
VOUT: Output voltage pin.
FB: Feedback pin for output voltage regulation.
EN: Enable pin for controlling the device's operation.
ILIM: Current limit setting pin.
VIN: Input voltage pin.

Functional Features

Integrated power MOSFET for efficient power conversion.
Automatic detection and classification of powered devices.
Overcurrent and overtemperature protection.
Under-voltage lockout (UVLO) for enhanced system reliability.
Adjustable output voltage to accommodate various device requirements.

Advantages and Disadvantages

Advantages

Simplifies PoE system design by integrating key functions into a single IC.
High efficiency power management reduces energy consumption and heat dissipation.
Comprehensive protection features safeguard the system and connected devices.
Compact package size allows for space-efficient designs.
Easy integration into existing PoE systems due to its compatibility with industry standards.

Disadvantages

Limited maximum output current may not be suitable for high-power devices.
Requires additional external components for complete PoE system implementation.
Sensitive to input voltage fluctuations, necessitating proper input voltage regulation.

Working Principles

The TPS2376D operates based on the principles of power over Ethernet. It receives power from the Ethernet cable and converts it to the desired output voltage using an integrated power MOSFET. The IC also performs device detection and classification to ensure proper power delivery to connected devices. Various protection mechanisms, such as overcurrent and overtemperature protection, are implemented to safeguard the system and prevent damage.

Application Field Plans

The TPS2376D finds extensive application in the following fields:

IP Surveillance Systems: Enables power and data transmission to IP cameras, eliminating the need for separate power cables.
Wireless Access Points: Provides power to wireless access points, simplifying installation and reducing wiring complexity.
Voice over IP (VoIP) Phones: Enables power delivery to VoIP phones, eliminating the need for separate power adapters.
Network Switches: Facilitates power distribution within network switches, enhancing overall system efficiency.

Alternative Models

For users seeking alternative options, the following models can be considered:

TPS2376E: Similar to TPS2376D but with a higher maximum output current of 800mA.
TPS2376F: Offers additional features such as integrated thermal shutdown and adjustable current limit.
TPS2376G: Provides enhanced protection features, including overvoltage and reverse polarity protection.

In conclusion, the TPS2376D is a versatile IC designed for power over Ethernet applications. Its compact size, high efficiency, and comprehensive protection features make it an ideal choice for various PoE systems. However, users should consider alternative models based on specific requirements and desired functionalities.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací TPS2376D v technických řešeních

Sure! Here are 10 common questions and answers related to the application of TPS2376D in technical solutions:

Q: What is TPS2376D? A: TPS2376D is a Power over Ethernet (PoE) powered device (PD) controller that integrates both the IEEE 802.3bt-compliant PoE PD interface and a DC-DC converter.
Q: What is the purpose of TPS2376D? A: TPS2376D is designed to enable power delivery over Ethernet cables, allowing devices to receive power and data through a single cable.
Q: What are the key features of TPS2376D? A: Some key features of TPS2376D include IEEE 802.3bt compliance, support for up to 90W of power delivery, integrated DC-DC converter, and advanced power management capabilities.
Q: How does TPS2376D work? A: TPS2376D works by negotiating with the power sourcing equipment (PSE) to determine the available power budget and then regulating the power delivery to the connected device accordingly.
Q: What types of devices can TPS2376D power? A: TPS2376D can power a wide range of devices such as IP phones, wireless access points, security cameras, IoT devices, and other network-connected devices.
Q: Can TPS2376D be used in both indoor and outdoor applications? A: Yes, TPS2376D is suitable for both indoor and outdoor applications, making it versatile for various environments.
Q: Does TPS2376D support power management features? A: Yes, TPS2376D offers advanced power management features such as prioritization, classification, and power monitoring to optimize power delivery.
Q: What are the benefits of using TPS2376D in a technical solution? A: Some benefits include simplified installation with a single cable for both power and data, reduced costs by eliminating the need for separate power supplies, and improved flexibility in device placement.
Q: Is TPS2376D compatible with other PoE standards? A: Yes, TPS2376D is backward compatible with previous PoE standards such as IEEE 802.3af and IEEE 802.3at.
Q: Are there any design considerations when using TPS2376D? A: Design considerations include proper thermal management, adhering to safety guidelines, ensuring adequate power budget, and optimizing layout for signal integrity.

Please note that these answers are general and may vary depending on specific application requirements and implementation details.