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TPS2375DR
Product Overview
Category
The TPS2375DR belongs to the category of integrated circuits (ICs) specifically designed for power over Ethernet (PoE) applications.
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 electrical power to devices such as IP cameras, wireless access points, and VoIP phones, eliminating the need for separate power cables.
Characteristics
- Power over Ethernet (PoE) controller
- Supports IEEE 802.3af/at standards
- Integrated DC-DC converter
- High efficiency and low power dissipation
- Wide input voltage range
- Overcurrent and overtemperature protection
- Small form factor
Package
The TPS2375DR is available in a small outline package (SOP) with eight pins. This package ensures easy integration into various PoE system designs.
Essence
The essence of the TPS2375DR lies in its ability to simplify the implementation of PoE systems by integrating key functionalities into a single IC. It provides a cost-effective and efficient solution for delivering power and data simultaneously over Ethernet cables.
Packaging/Quantity
The TPS2375DR is typically packaged in reels or tubes, containing a specified quantity of ICs per package. The exact packaging and quantity may vary depending on the supplier.
Specifications
- Input Voltage Range: 36V to 57V
- Output Voltage: Configurable (typically 3.3V or 5V)
- Maximum Output Power: 25.5W
- Operating Temperature Range: -40°C to +85°C
- Efficiency: Up to 90%
- Control Interface: I2C
Detailed Pin Configuration
- VDD: Power supply input
- GND: Ground reference
- SDA: I2C data line
- SCL: I2C clock line
- VOUT: Output voltage
- NC: No connection
- EN: Enable pin
- VIN: Input voltage
Functional Features
- IEEE 802.3af/at compliance
- Detection and classification of powered devices
- Automatic current limit and thermal shutdown protection
- Configurable output voltage
- I2C interface for control and monitoring
Advantages and Disadvantages
Advantages
- Simplifies PoE system design
- Cost-effective solution
- High efficiency
- Integrated DC-DC converter reduces external components
- Comprehensive protection features
Disadvantages
- Limited maximum output power (25.5W)
- Requires additional external components for complete PoE system implementation
Working Principles
The TPS2375DR operates by receiving power from the Ethernet cable and converting it to a regulated output voltage suitable for powering connected devices. It incorporates an integrated DC-DC converter that efficiently steps down the input voltage to the desired output voltage level. The IC also performs detection and classification of powered devices, ensuring compatibility with various PoE standards.
Detailed Application Field Plans
The TPS2375DR finds applications in a wide range of PoE-enabled devices, including: - IP cameras - Wireless access points - VoIP phones - Network switches - Industrial automation equipment - IoT devices
Detailed and Complete Alternative Models
- TPS23753R: Similar functionality with enhanced power capabilities (up to 51W).
- TPS23861: PoE controller with advanced diagnostics and monitoring features.
- LTC4267: Integrated PoE controller with extended temperature range.
These alternative models offer varying features and specifications, allowing designers to choose the most suitable option based on their specific requirements.
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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de TPS2375DR en soluciones técnicas
Sure! Here are 10 common questions and answers related to the application of TPS2375DR in technical solutions:
Q: What is TPS2375DR? A: TPS2375DR is a Power over Ethernet (PoE) powered device controller that integrates both the IEEE 802.3at-compliant PoE interface and a DC-DC converter.
Q: What is the purpose of TPS2375DR in technical solutions? A: TPS2375DR is used to enable power delivery over Ethernet cables, allowing devices to be powered and communicate over a single network cable.
Q: Can TPS2375DR support high-power PoE applications? A: Yes, TPS2375DR is designed to support high-power PoE applications, providing up to 25.5W of power to the connected device.
Q: How does TPS2375DR ensure safe power delivery? A: TPS2375DR incorporates various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown to ensure safe power delivery.
Q: Can TPS2375DR be used with non-PoE devices? A: Yes, TPS2375DR can be used with non-PoE devices by connecting it to a PoE splitter or injector.
Q: What is the input voltage range supported by TPS2375DR? A: TPS2375DR supports an input voltage range of 36V to 57V, which is typical for PoE applications.
Q: Does TPS2375DR require any external components for operation? A: Yes, TPS2375DR requires external components such as capacitors, resistors, and inductors to form a complete PoE solution.
Q: Can TPS2375DR be used in industrial applications? A: Yes, TPS2375DR is suitable for industrial applications as it operates over a wide temperature range and has robust protection features.
Q: Is TPS2375DR compatible with other PoE standards like IEEE 802.3af? A: Yes, TPS2375DR is backward compatible with IEEE 802.3af standard, allowing it to work with both 802.3at and 802.3af powered devices.
Q: Are there any evaluation modules available for TPS2375DR? A: Yes, Texas Instruments provides evaluation modules for TPS2375DR, which can help in testing and prototyping PoE solutions.
Please note that the answers provided here are general and may vary depending on the specific application and requirements.