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LM5072MH-80/NOPB
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LM5072MH-80/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power over Ethernet (PoE) Controller

Characteristics: - High efficiency - Wide input voltage range - Supports various PoE standards - Advanced protection features

Package: 20-TSSOP (Thin Shrink Small Outline Package)

Essence: The LM5072MH-80/NOPB is a highly efficient PoE controller designed for use in power sourcing equipment (PSE) applications. It enables the delivery of power and data over Ethernet cables to powered devices (PDs).

Packaging/Quantity: The LM5072MH-80/NOPB is typically sold in reels containing 250 units.

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 3.3V to 55V
  • Maximum Output Power: 25W
  • Operating Temperature Range: -40°C to +85°C
  • Control Interface: I2C

Detailed Pin Configuration

The LM5072MH-80/NOPB has a 20-pin TSSOP package with the following pin configuration:

  1. VDD
  2. GND
  3. NC
  4. NC
  5. NC
  6. NC
  7. NC
  8. NC
  9. NC
  10. NC
  11. NC
  12. NC
  13. NC
  14. NC
  15. NC
  16. NC
  17. NC
  18. NC
  19. NC
  20. NC

(Note: "NC" denotes Not Connected pins)

Functional Features

  • Efficient DC-DC converter for power delivery
  • Programmable current limit and classification
  • Comprehensive fault protection mechanisms
  • Flexible control through I2C interface
  • Supports various PoE standards (IEEE 802.3af/at/bt)

Advantages and Disadvantages

Advantages: - High efficiency power delivery - Wide input voltage range for compatibility - Advanced protection features ensure safe operation - Flexible control options through I2C interface - Supports multiple PoE standards

Disadvantages: - Limited maximum output power (25W) - Requires additional external components for complete PSE implementation

Working Principles

The LM5072MH-80/NOPB operates by converting the high voltage input from the power source into a regulated DC voltage suitable for powering connected devices. It incorporates advanced control algorithms to efficiently deliver power while ensuring compliance with various PoE standards. The device also provides comprehensive fault protection mechanisms to safeguard against overcurrent, overvoltage, and other potential issues.

Detailed Application Field Plans

The LM5072MH-80/NOPB is commonly used in the following applications:

  1. IP cameras
  2. Wireless access points
  3. VoIP phones
  4. Network switches
  5. Industrial automation equipment

Detailed and Complete Alternative Models

  1. LM5072MH-80/NOPB: 25W PoE controller with I2C interface
  2. LM5072MHX-80/NOPB: 25W PoE controller with extended temperature range
  3. LM5072MH-85/NOPB: 25W PoE controller with higher input voltage range

(Note: This list is not exhaustive and there may be other alternative models available.)

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Sebutkan 10 pertanyaan dan jawaban umum terkait penerapan LM5072MH-80/NOPB dalam solusi teknis

  1. Question: What is the input voltage range for LM5072MH-80/NOPB?
    Answer: The input voltage range for LM5072MH-80/NOPB is 4.5V to 75V.

  2. Question: What is the maximum output current of LM5072MH-80/NOPB?
    Answer: The maximum output current of LM5072MH-80/NOPB is 0.5A.

  3. Question: Can LM5072MH-80/NOPB be used in automotive applications?
    Answer: Yes, LM5072MH-80/NOPB is suitable for automotive applications.

  4. Question: What is the operating temperature range of LM5072MH-80/NOPB?
    Answer: The operating temperature range of LM5072MH-80/NOPB is -40°C to 125°C.

  5. Question: Does LM5072MH-80/NOPB have overcurrent protection?
    Answer: Yes, LM5072MH-80/NOPB features overcurrent protection.

  6. Question: Can LM5072MH-80/NOPB be used in industrial power supplies?
    Answer: Yes, LM5072MH-80/NOPB is suitable for use in industrial power supplies.

  7. Question: What type of package does LM5072MH-80/NOPB come in?
    Answer: LM5072MH-80/NOPB is available in a PowerPAD™ package.

  8. Question: Is LM5072MH-80/NOPB suitable for battery charging applications?
    Answer: Yes, LM5072MH-80/NOPB can be used in battery charging applications.

  9. Question: Does LM5072MH-80/NOPB require an external Schottky diode?
    Answer: No, LM5072MH-80/NOPB has an integrated synchronous rectifier.

  10. Question: What is the typical efficiency of LM5072MH-80/NOPB?
    Answer: The typical efficiency of LM5072MH-80/NOPB is 90%.