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TPS2377PWR
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TPS2377PWR

Product Overview

Category

The TPS2377PWR belongs to the category of integrated circuits (ICs) specifically designed for power management applications.

Use

This IC is primarily used in Power over Ethernet (PoE) systems, where it enables the delivery of both power and data over a single Ethernet cable. It provides a convenient solution for powering various network devices such as IP cameras, wireless access points, and VoIP phones.

Characteristics

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 3.3V to 5V
  • Maximum Output Current: 750mA
  • Efficiency: Up to 90%
  • Operating Temperature Range: -40°C to 85°C

Package

The TPS2377PWR is available in a small-sized, surface-mount package known as PowerPAD™. This package offers excellent thermal performance and ease of assembly.

Essence

The essence of the TPS2377PWR lies in its ability to efficiently convert high voltage input from an Ethernet cable into a regulated low voltage output suitable for powering various electronic devices.

Packaging/Quantity

The TPS2377PWR is typically supplied in tape and reel packaging, with 2500 units per reel.

Specifications

  • Input Voltage: 36V to 57V
  • Output Voltage: 3.3V to 5V
  • Output Current: Up to 750mA
  • Quiescent Current: 100µA
  • Switching Frequency: 200kHz
  • Overcurrent Protection: Yes
  • Short Circuit Protection: Yes
  • Thermal Shutdown Protection: Yes

Detailed Pin Configuration

The TPS2377PWR features a 20-pin package with the following pin configuration:

  1. VDD: Power supply input
  2. GND: Ground
  3. VDDA: Analog power supply input
  4. GND: Ground
  5. VDDC: Control power supply input
  6. GND: Ground
  7. VDDP: Power MOSFET gate driver power supply input
  8. GND: Ground
  9. VDDP: Power MOSFET gate driver power supply input
  10. GND: Ground
  11. VDDP: Power MOSFET gate driver power supply input
  12. GND: Ground
  13. VDDP: Power MOSFET gate driver power supply input
  14. GND: Ground
  15. VDDP: Power MOSFET gate driver power supply input
  16. GND: Ground
  17. VDDP: Power MOSFET gate driver power supply input
  18. GND: Ground
  19. VDDP: Power MOSFET gate driver power supply input
  20. GND: Ground

Functional Features

  • Integrated high-voltage switch for PoE applications
  • Programmable current limit and classification
  • Detection and protection against short circuits and overcurrent conditions
  • Thermal shutdown protection to prevent IC damage due to excessive temperature
  • Low quiescent current for improved efficiency in standby mode
  • Wide input voltage range for compatibility with various PoE systems

Advantages and Disadvantages

Advantages

  • Efficient power conversion for PoE applications
  • Comprehensive protection features ensure system reliability
  • Compact package with excellent thermal performance
  • Wide input voltage range allows compatibility with different PoE systems

Disadvantages

  • Limited output current compared to some other PoE ICs
  • Higher cost compared to non-PoE power management solutions

Working Principles

The TPS2377PWR operates by receiving power from the Ethernet cable and converting it into a regulated low voltage output suitable for powering connected devices. It incorporates a high-voltage switch, which efficiently steps down the input voltage to the desired output level. The IC also includes various protection features such as overcurrent and short circuit detection, ensuring safe operation of the PoE system.

Detailed Application Field Plans

The TPS2377PWR finds extensive application in Power over Ethernet systems across various industries. Some specific application fields include:

  1. Security Systems: IP cameras, access control systems
  2. Networking Equipment: Wireless access points, routers, switches
  3. Telecommunications: VoIP phones, video conferencing systems
  4. Industrial Automation: Remote monitoring devices, sensors
  5. Smart Lighting: LED lighting fixtures with PoE support

Detailed and Complete Alternative Models

  1. TPS2378PWR: Similar to TPS2377PWR but with higher output current capability (up to 1A).
  2. TPS2389PWR: Advanced PoE controller with additional features such as power management and diagnostics.
  3. LTC4267CGN: PoE interface controller with integrated power MOSFETs and advanced fault protection.

These alternative models offer similar

Перелічіть 10 типових запитань і відповідей, пов’язаних із застосуванням TPS2377PWR у технічних рішеннях

Sure! Here are 10 common questions and answers related to the application of TPS2377PWR in technical solutions:

  1. Q: What is TPS2377PWR?
    A: TPS2377PWR is a Power over Ethernet (PoE) controller IC designed for use in various technical solutions.

  2. Q: What is the purpose of TPS2377PWR?
    A: TPS2377PWR provides power management and control functions for PoE applications, allowing devices to receive power and data over Ethernet cables.

  3. Q: What is the maximum power output of TPS2377PWR?
    A: TPS2377PWR can deliver up to 25.5W of power to connected devices.

  4. Q: Can TPS2377PWR be used in both IEEE 802.3af and IEEE 802.3at compliant systems?
    A: Yes, TPS2377PWR is compatible with both IEEE 802.3af and IEEE 802.3at standards.

  5. Q: How many ports can TPS2377PWR support?
    A: TPS2377PWR can support up to four PoE ports.

  6. Q: Does TPS2377PWR provide protection features?
    A: Yes, TPS2377PWR offers various protection features such as overcurrent, overvoltage, and thermal shutdown protection.

  7. Q: Can TPS2377PWR operate in a wide temperature range?
    A: Yes, TPS2377PWR has a wide operating temperature range of -40°C to +85°C.

  8. Q: Is TPS2377PWR suitable for industrial applications?
    A: Yes, TPS2377PWR is designed to meet the requirements of industrial applications.

  9. Q: Does TPS2377PWR require external components for operation?
    A: Yes, TPS2377PWR requires external components such as MOSFETs, transformers, and capacitors for proper operation.

  10. Q: Are there any evaluation boards available for TPS2377PWR?
    A: Yes, Texas Instruments provides evaluation boards for TPS2377PWR to facilitate testing and development of PoE solutions.

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