Texas Instruments
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TPS23851DCE
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TPS23851DCE

Product Overview

Category

The TPS23851DCE belongs to the category of Power over Ethernet (PoE) controllers.

Use

It is primarily used for managing power and data transmission in PoE systems.

Characteristics

  • Efficient power management
  • Reliable data transmission
  • Advanced protection features
  • Compact package design

Package

The TPS23851DCE comes in a small form factor package, suitable for integration into various devices.

Essence

The essence of TPS23851DCE lies in its ability to provide power and data control in PoE applications.

Packaging/Quantity

The product is typically packaged in reels or trays, with a quantity of 250 units per reel/tray.

Specifications

  • Input voltage range: 36V to 57V
  • Maximum output current: 600mA
  • Operating temperature range: -40°C to +85°C
  • Power dissipation: 1.5W (typical)

Detailed Pin Configuration

The TPS23851DCE has the following pin configuration:

  1. VDD: Power supply input
  2. GND: Ground reference
  3. MDI: Media Dependent Interface
  4. MDO: Media Dependent Output
  5. INT: Interrupt output
  6. SDA: I2C serial data input/output
  7. SCL: I2C serial clock input

Functional Features

  • IEEE 802.3bt compliant
  • Integrated detection and classification
  • Flexible power management options
  • Comprehensive fault protection mechanisms
  • I2C interface for configuration and monitoring

Advantages and Disadvantages

Advantages

  • High efficiency power delivery
  • Robust protection against faults
  • Compact size for easy integration
  • Compliance with industry standards

Disadvantages

  • Limited maximum output current
  • Requires additional components for complete PoE system implementation

Working Principles

The TPS23851DCE operates by receiving power and data from an Ethernet cable connected to its MDI pin. It then processes the received signals, classifies the connected device, and manages the power delivery accordingly. The integrated protection mechanisms ensure safe operation and prevent damage to the device or the connected equipment.

Detailed Application Field Plans

The TPS23851DCE is suitable for a wide range of applications, including: 1. IP cameras and surveillance systems 2. Wireless access points 3. VoIP phones 4. Industrial automation equipment 5. IoT devices

Detailed and Complete Alternative Models

  1. TPS23852DCE: Similar functionality with higher maximum output current (800mA).
  2. TPS23853DCE: Enhanced features for advanced power management and diagnostics.
  3. TPS23854DCE: Higher power handling capability (up to 1A) for demanding applications.

(Note: These alternative models are provided as examples and may not cover all available options in the market.)

In conclusion, the TPS23851DCE is a versatile PoE controller that offers efficient power management and reliable data transmission. Its compact size and comprehensive protection features make it suitable for various applications. However, it has limitations in terms of maximum output current and requires additional components for a complete PoE system implementation.

Énumérez 10 questions et réponses courantes liées à l'application de TPS23851DCE dans les solutions techniques

Sure! Here are 10 common questions and answers related to the application of TPS23851DCE in technical solutions:

  1. Q: What is TPS23851DCE? A: TPS23851DCE is a Power over Ethernet (PoE) powered device (PD) controller that integrates all the necessary functions for a PoE PD, including detection, classification, and current limiting.

  2. Q: What is the maximum power that TPS23851DCE can handle? A: TPS23851DCE can handle up to 90W of power, making it suitable for high-power PoE applications.

  3. Q: Can TPS23851DCE support both IEEE 802.3af and IEEE 802.3at standards? A: Yes, TPS23851DCE is compliant with both IEEE 802.3af and IEEE 802.3at standards, allowing it to work with a wide range of PoE devices.

  4. Q: How many ports can TPS23851DCE support? A: TPS23851DCE can support up to 8 PoE ports, making it suitable for applications requiring multiple powered devices.

  5. Q: Does TPS23851DCE have built-in thermal protection? A: Yes, TPS23851DCE has built-in thermal protection to prevent overheating and ensure safe operation.

  6. Q: Can TPS23851DCE operate in a wide temperature range? A: Yes, TPS23851DCE is designed to operate in a wide temperature range, typically from -40°C to +125°C.

  7. Q: Does TPS23851DCE support advanced power management features? A: Yes, TPS23851DCE supports advanced power management features such as power prioritization and power budgeting.

  8. Q: Can TPS23851DCE be used in industrial applications? A: Yes, TPS23851DCE is suitable for industrial applications due to its robust design and wide temperature range.

  9. Q: Does TPS23851DCE support plug-and-play functionality? A: Yes, TPS23851DCE supports plug-and-play functionality, allowing for easy installation and configuration.

  10. Q: Is TPS23851DCE compatible with other PoE controllers or switches? A: Yes, TPS23851DCE is designed to be compatible with other PoE controllers or switches that adhere to the IEEE 802.3af/at standards.