LM5071MT-50/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Power over Ethernet (PoE) Controller

Characteristics: - High efficiency - Wide input voltage range - Supports IEEE 802.3af/at standards - Provides power management features - Suitable for various PoE applications

Package: TSSOP-16

Essence: The LM5071MT-50/NOPB is a PoE controller IC designed to provide power and manage data transmission over Ethernet cables.

Packaging/Quantity: The LM5071MT-50/NOPB is available in a TSSOP-16 package. It is typically sold in reels of 2500 units.

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 2.5V to 57V
• Maximum Output Current: 600mA
• Operating Temperature Range: -40°C to +85°C
• Power Dissipation: 1.25W

Pin Configuration

The LM5071MT-50/NOPB has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground reference
3. VOUT: Output voltage
4. EN: Enable pin
5. FLT: Fault indicator output
6. PG: Power good indicator output
7. NC: No connection
8. NC: No connection
9. NC: No connection
10. NC: No connection
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Integrated high-efficiency DC-DC converter
• Supports both IEEE 802.3af and 802.3at standards
• Provides power management features such as overcurrent protection, thermal shutdown, and undervoltage lockout
• Fault indicator output for easy fault detection
• Power good indicator output to indicate successful power delivery

Advantages and Disadvantages

Advantages: - High efficiency helps reduce power dissipation - Wide input voltage range allows compatibility with various power sources - Supports both IEEE 802.3af and 802.3at standards, ensuring compatibility with different PoE devices - Power management features enhance system reliability and protection

Disadvantages: - Limited maximum output current of 600mA may not be sufficient for high-power PoE applications - TSSOP-16 package may require careful handling during assembly

Working Principles

The LM5071MT-50/NOPB operates by receiving power from an Ethernet cable and converting it into a regulated DC voltage suitable for powering connected devices. It incorporates a high-efficiency DC-DC converter that efficiently transfers power while minimizing losses. The IC also includes various protection mechanisms to ensure safe operation and prevent damage to the connected devices.

Application Field Plans

The LM5071MT-50/NOPB is commonly used in the following application fields:

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

Alternative Models

Some alternative models to the LM5071MT-50/NOPB include:

1. LM5070MT-50/NOPB
2. LM5072MT-50/NOPB
3. LT4276AEMS#PBF
4. TPS23754PWPR
5. MAX5942AESA+

These models offer similar functionality and can be considered as alternatives depending on specific requirements.

In conclusion, the LM5071MT-50/NOPB is a highly efficient PoE controller IC that provides power management features and supports IEEE 802.3af/at standards. Its wide input voltage range and various protection mechanisms make it suitable for a range of PoE applications. However, its limited maximum output current and TSSOP-16 package should be considered when selecting the appropriate solution for a specific application.

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