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LM5072MH-50
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LM5072MH-50

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management

Characteristics: - High efficiency - Wide input voltage range - Adjustable output voltage - Overcurrent protection - Thermal shutdown protection

Package: PowerPAD-HTSSOP

Essence: The LM5072MH-50 is a high-performance power management IC designed for various applications requiring efficient power conversion.

Packaging/Quantity: The LM5072MH-50 is available in a PowerPAD-HTSSOP package and is typically sold in reels of 250 units.

Specifications

The LM5072MH-50 has the following specifications:

  • Input Voltage Range: 4.5V to 75V
  • Output Voltage Range: 0.8V to 60V
  • Maximum Output Current: 2A
  • Switching Frequency: 100kHz to 1MHz
  • Operating Temperature Range: -40°C to +125°C

Pin Configuration

The LM5072MH-50 has the following pin configuration:

  1. VIN: Input voltage
  2. GND: Ground
  3. VCC: Supply voltage
  4. FB: Feedback pin for output voltage regulation
  5. EN: Enable pin for turning the IC on/off
  6. SS/TR: Soft-start/Tracking pin for controlling the startup behavior
  7. PG: Power Good indicator pin
  8. SW: Switch node for connecting the external inductor and diode

Functional Features

The LM5072MH-50 offers the following functional features:

  • Wide input voltage range allows for versatile applications.
  • Adjustable output voltage provides flexibility in power conversion.
  • Overcurrent protection safeguards against excessive current flow.
  • Thermal shutdown protection prevents overheating and damage.

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power loss. - Wide input voltage range enables compatibility with various power sources. - Adjustable output voltage allows for customization. - Overcurrent and thermal protection enhance reliability.

Disadvantages: - Limited maximum output current may not be suitable for high-power applications. - Switching frequency range may not cover all desired operating frequencies.

Working Principles

The LM5072MH-50 operates based on a switching regulator topology. It converts the input voltage to the desired output voltage by controlling the duty cycle of the internal switch. The feedback mechanism ensures the output voltage remains within the specified range. The IC also incorporates protection features to ensure safe operation under different conditions.

Detailed Application Field Plans

The LM5072MH-50 can be used in various applications, including but not limited to:

  1. Industrial automation systems
  2. Telecommunications equipment
  3. Automotive electronics
  4. Power supply modules
  5. LED lighting systems

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the LM5072MH-50 are:

  1. LM5072MH-80: Higher maximum output current (up to 4A)
  2. LM5072MH-25: Lower input voltage range (down to 2.7V)
  3. LM5072MH-12: Lower output voltage range (down to 0.6V)

These alternative models provide options for different power requirements and operating conditions.

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Lista 10 Vanliga frågor och svar relaterade till tillämpningen av LM5072MH-50 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of LM5072MH-50 in technical solutions:

  1. Q: What is LM5072MH-50? A: LM5072MH-50 is a specific model of a high-voltage power over Ethernet (PoE) controller IC.

  2. Q: What is the purpose of LM5072MH-50? A: The purpose of LM5072MH-50 is to provide power and control for PoE applications, allowing devices to be powered over Ethernet cables.

  3. Q: What is the maximum voltage supported by LM5072MH-50? A: LM5072MH-50 supports a maximum voltage of 57V.

  4. Q: Can LM5072MH-50 be used with both IEEE 802.3af and IEEE 802.3at standards? A: Yes, LM5072MH-50 is compatible with both IEEE 802.3af and IEEE 802.3at standards.

  5. Q: What is the maximum power output of LM5072MH-50? A: LM5072MH-50 can deliver up to 50W of power.

  6. Q: Does LM5072MH-50 require an external MOSFET for operation? A: Yes, LM5072MH-50 requires an external N-channel MOSFET for its operation.

  7. Q: Can LM5072MH-50 support multiple PoE ports simultaneously? A: Yes, LM5072MH-50 can support multiple PoE ports, depending on the design and configuration of the system.

  8. Q: Is LM5072MH-50 suitable for outdoor applications? A: Yes, LM5072MH-50 is designed to withstand harsh environmental conditions, making it suitable for outdoor applications.

  9. Q: Does LM5072MH-50 provide any protection features? A: Yes, LM5072MH-50 provides various protection features such as overcurrent protection, overvoltage protection, and thermal shutdown.

  10. Q: What is the typical operating temperature range of LM5072MH-50? A: The typical operating temperature range of LM5072MH-50 is -40°C to +125°C.

Please note that these answers are general and may vary depending on the specific application and design considerations. It's always recommended to refer to the LM5072MH-50 datasheet and consult with the manufacturer for detailed information and guidelines.