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MAX5982BETE+T
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MAX5982BETE+T

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: Power over Ethernet (PoE) Controller
  • Characteristics:
    • High efficiency
    • Small package size
    • Low power consumption
  • Package: 16-pin TQFN (Thin Quad Flat No-Lead)
  • Essence: Provides power and control for PoE systems
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

  • Input Voltage Range: 36V to 57V
  • Output Voltage Range: 3.3V to 5.5V
  • Maximum Output Current: 400mA
  • Operating Temperature Range: -40°C to +85°C
  • Power Dissipation: 1.5W

Pin Configuration

The MAX5982BETE+T has a total of 16 pins arranged as follows:

  1. VDD
  2. GND
  3. VDDP
  4. GNDP
  5. VDDA
  6. GNDP
  7. VDDC
  8. GNDP
  9. VDDI
  10. GNDI
  11. VDDO
  12. GNDI
  13. VOUT
  14. VOUT
  15. VOUT
  16. VOUT

Functional Features

  • Supports IEEE 802.3af/at compliant PoE systems
  • Integrated DC-DC converter for efficient power delivery
  • Programmable current limit and classification
  • Overcurrent and overtemperature protection
  • Integrated detection and classification signature resistor

Advantages and Disadvantages

Advantages: - High efficiency power delivery - Compact package size - Wide input voltage range - Comprehensive protection features

Disadvantages: - Limited maximum output current - Requires external components for complete PoE system implementation

Working Principles

The MAX5982BETE+T is a PoE controller that enables the delivery of power and control signals over Ethernet cables. It integrates a DC-DC converter to efficiently convert the input voltage into a regulated output voltage suitable for powering connected devices. The device supports IEEE 802.3af/at compliant PoE systems, providing programmable current limit and classification capabilities. It also incorporates various protection features to ensure safe operation.

Detailed Application Field Plans

The MAX5982BETE+T is commonly used in various applications where power over Ethernet is required. Some of the typical application fields include:

  1. IP Cameras: The PoE controller can power and control IP cameras, eliminating the need for separate power cables and simplifying installation.
  2. Wireless Access Points: By using the MAX5982BETE+T, wireless access points can be powered through Ethernet cables, enabling flexible placement without the need for nearby power outlets.
  3. VoIP Phones: PoE allows VoIP phones to receive power and data over a single Ethernet cable, reducing clutter and facilitating easy deployment.

Detailed and Complete Alternative Models

  1. MAX5974BETE+T: Similar to the MAX5982BETE+T, this PoE controller offers higher maximum output current of 600mA.
  2. LTC4267IGN#PBF: Another PoE controller with integrated DC-DC converter, supporting up to 400mA output current.
  3. TPS23753PWPR: This PoE controller provides advanced power management features and supports up to 800mA output current.

These alternative models offer similar functionality to the MAX5982BETE+T and can be considered based on specific requirements and design considerations.

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技術ソリューションにおける MAX5982BETE+T の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of MAX5982BETE+T in technical solutions:

  1. Q: What is the MAX5982BETE+T? A: The MAX5982BETE+T is a power management IC (PMIC) specifically designed for Power over Ethernet (PoE) applications.

  2. Q: What is Power over Ethernet (PoE)? A: PoE is a technology that allows both power and data to be transmitted over a single Ethernet cable, eliminating the need for separate power cables.

  3. Q: What are the key features of the MAX5982BETE+T? A: The MAX5982BETE+T features integrated power MOSFETs, current limiters, thermal protection, and supports IEEE 802.3af/at standards.

  4. Q: What is the maximum power output of the MAX5982BETE+T? A: The MAX5982BETE+T can deliver up to 30W of power to the connected device.

  5. Q: Can the MAX5982BETE+T be used in both PoE and PoE+ applications? A: Yes, the MAX5982BETE+T is compatible with both IEEE 802.3af (PoE) and IEEE 802.3at (PoE+) standards.

  6. Q: How many ports can the MAX5982BETE+T support? A: The MAX5982BETE+T can support up to four PoE/PoE+ ports.

  7. Q: Does the MAX5982BETE+T require any external components? A: Yes, the MAX5982BETE+T requires external components such as input capacitors, transformers, and output capacitors for proper operation.

  8. Q: What is the input voltage range of the MAX5982BETE+T? A: The MAX5982BETE+T has an input voltage range of 36V to 57V.

  9. Q: Can the MAX5982BETE+T provide power to non-PoE devices? A: Yes, the MAX5982BETE+T can also be used to provide power to non-PoE devices by disabling the PoE functionality.

  10. Q: Are there any evaluation kits available for the MAX5982BETE+T? A: Yes, Maxim Integrated offers evaluation kits that include the MAX5982BETE+T along with all the necessary components for testing and development.

Please note that these answers 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.