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LTC4282CUH#TRPBF
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LTC4282CUH#TRPBF

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power over Ethernet (PoE) Controller
  • Characteristics: High Efficiency, Low Power Consumption
  • Package: 38-Lead QFN (Quad Flat No-Lead)
  • Essence: Regulates and Controls Power Delivery in PoE Systems
  • Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 0V to 57V
  • Maximum Current Sense Voltage: 1.5V
  • Operating Temperature Range: -40°C to 85°C
  • Maximum Power Dissipation: 1.25W

Detailed Pin Configuration

The LTC4282CUH#TRPBF has a total of 38 pins. The pin configuration is as follows:

  1. VDD
  2. GND
  3. INTVCC
  4. VEE
  5. VREF
  6. VOUT
  7. VOUT
  8. VOUT
  9. VOUT
  10. VOUT
  11. VOUT
  12. VOUT
  13. VOUT
  14. VOUT
  15. VOUT
  16. VOUT
  17. VOUT
  18. VOUT
  19. VOUT
  20. VOUT
  21. VOUT
  22. VOUT
  23. VOUT
  24. VOUT
  25. VOUT
  26. VOUT
  27. VOUT
  28. VOUT
  29. VOUT
  30. VOUT
  31. VOUT
  32. VOUT
  33. VOUT
  34. VOUT
  35. VOUT
  36. VOUT
  37. VOUT
  38. VOUT

Functional Features

  • Integrated IEEE 802.3af/at Compliant PD Interface
  • Accurate Current and Voltage Monitoring
  • Programmable Classification Current Limit
  • Fast Overcurrent Protection
  • Robust Surge Protection
  • Low Power Consumption in Sleep Mode

Advantages and Disadvantages

Advantages

  • High Efficiency Power Delivery
  • Accurate Monitoring and Control
  • Surge Protection for Enhanced Reliability
  • Low Power Consumption in Sleep Mode

Disadvantages

  • Limited to PoE Applications
  • Requires External Components for Complete Functionality

Working Principles

The LTC4282CUH#TRPBF is designed to regulate and control power delivery in Power over Ethernet (PoE) systems. It integrates an IEEE 802.3af/at compliant PD interface, allowing it to communicate with a PoE PSE (Power Sourcing Equipment). The IC accurately monitors the current and voltage levels, ensuring efficient power transfer. It also provides surge protection to safeguard against voltage spikes. The LTC4282CUH#TRPBF operates with low power consumption in sleep mode, reducing overall energy usage.

Detailed Application Field Plans

The LTC4282CUH#TRPBF is primarily used in PoE applications, such as network switches, IP cameras, wireless access points, and VoIP phones. Its accurate monitoring and control capabilities make it suitable for various power-sensitive devices that rely on PoE technology. The surge protection feature ensures reliable operation even in harsh electrical environments.

Detailed and Complete Alternative Models

  • LTC4267CUH#TRPBF: PoE Controller with Integrated Hot Swap Controller
  • LTC4274CUH#TRPBF: PoE++ PSE Controller with Integrated Hot Swap Controller
  • LTC4291CUH#TRPBF: Quad Port PoE/PoE+ PSE Controller

These alternative models offer similar functionality and are compatible with different PoE system requirements.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät LTC4282CUH#TRPBF :n soveltamiseen teknisissä ratkaisuissa

Sure! Here are 10 common questions and answers related to the application of LTC4282CUH#TRPBF in technical solutions:

  1. Q: What is LTC4282CUH#TRPBF? A: LTC4282CUH#TRPBF is a specific model number of a power over Ethernet (PoE) controller IC manufactured by Linear Technology (now part of Analog Devices). It is used for managing power delivery in PoE applications.

  2. Q: What are the main features of LTC4282CUH#TRPBF? A: The main features of LTC4282CUH#TRPBF include IEEE 802.3af/at compliant PD interface, integrated hot swap controller, programmable current limit, fault protection, and I²C/SMBus interface for control and monitoring.

  3. Q: How does LTC4282CUH#TRPBF enable Power over Ethernet? A: LTC4282CUH#TRPBF integrates the necessary circuitry to extract power from an Ethernet cable and provide it to the connected device. It complies with the IEEE 802.3af/at standards for PoE.

  4. Q: What is the maximum power that LTC4282CUH#TRPBF can deliver? A: LTC4282CUH#TRPBF can deliver up to 25.5W of power, which is compliant with the IEEE 802.3at standard for high-power PoE.

  5. Q: Can LTC4282CUH#TRPBF be used in both powered device (PD) and power sourcing equipment (PSE) applications? A: No, LTC4282CUH#TRPBF is specifically designed for use in powered device (PD) applications. For PSE applications, you would need a different PoE controller IC.

  6. Q: What is the input voltage range supported by LTC4282CUH#TRPBF? A: LTC4282CUH#TRPBF supports an input voltage range of 36V to 57V, which is typical for PoE applications.

  7. Q: Can LTC4282CUH#TRPBF handle short-circuit and overcurrent conditions? A: Yes, LTC4282CUH#TRPBF has built-in protection features to handle short-circuit and overcurrent conditions. It includes programmable current limit and fault protection mechanisms.

  8. Q: Does LTC4282CUH#TRPBF support remote monitoring and control? A: Yes, LTC4282CUH#TRPBF includes an I²C/SMBus interface that allows for remote monitoring and control of various parameters such as current, voltage, temperature, and fault status.

  9. Q: Can LTC4282CUH#TRPBF be used in industrial applications? A: Yes, LTC4282CUH#TRPBF is suitable for use in industrial applications due to its wide operating temperature range (-40°C to +85°C) and robust design.

  10. Q: Are there any evaluation boards or reference designs available for LTC4282CUH#TRPBF? A: Yes, Analog Devices provides evaluation boards and reference designs for LTC4282CUH#TRPBF, which can help developers quickly prototype and integrate the IC into their applications.

Please note that the answers provided here are general and may vary depending on specific application requirements. It is always recommended to refer to the datasheet and application notes provided by the manufacturer for detailed information.