MAX5986BETE+ - English Editing Encyclopedia Entry

Product Overview

Category

MAX5986BETE+ belongs to the category of integrated circuits (ICs).

Use

This product is commonly used in power management applications.

Characteristics

• The MAX5986BETE+ is a highly efficient power sourcing equipment (PSE) controller.
• It supports both IEEE 802.3af and IEEE 802.3at standards for Power over Ethernet (PoE) applications.
• This IC integrates all necessary functions required for PoE, including detection, classification, and current limiting.
• It provides a cost-effective solution for implementing PoE in various devices.

Package

The MAX5986BETE+ is available in a small 16-pin TQFN package.

Essence

The essence of MAX5986BETE+ lies in its ability to efficiently manage power delivery in PoE applications.

Packaging/Quantity

This product is typically sold in reels containing a quantity of 250 units per reel.

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 2.7V to 14V
• Maximum Output Current: 650mA
• Operating Temperature Range: -40°C to +85°C
• Efficiency: Up to 92%
• Standby Power Consumption: Less than 10mW

Detailed Pin Configuration

1. VDD: Power supply input
2. GND: Ground reference
3. VEE: Negative voltage supply
4. VREF: Reference voltage output
5. VSET: Output voltage setting
6. FB: Feedback pin for regulation control
7. EN: Enable pin for device operation
8. ILIM: Current limit setting
9. CLASS: Classification resistor connection
10. DET: Detection resistor connection
11. VOUT: Output voltage
12. PGND: Power ground reference
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection

Functional Features

• Integrated detection and classification functions for PoE applications.
• Efficient current limiting to protect the power source and connected devices.
• Wide input voltage range allows compatibility with various power sources.
• Adjustable output voltage to meet different device requirements.
• Low standby power consumption for energy efficiency.

Advantages and Disadvantages

Advantages

• Supports both IEEE 802.3af and IEEE 802.3at standards.
• Highly efficient power management for PoE applications.
• Compact package size for space-constrained designs.
• Cost-effective solution for implementing PoE.

Disadvantages

• Limited maximum output current of 650mA.
• Operating temperature range may not be suitable for extreme environments.

Working Principles

The MAX5986BETE+ operates by receiving an input voltage from a power source within the specified range. It then performs detection and classification functions to identify the connected device's power requirements. The IC regulates the output voltage based on the detected device class and limits the current to ensure safe operation. This enables the efficient delivery of power over Ethernet cables to the connected device.

Detailed Application Field Plans

The MAX5986BETE+ finds applications in various fields, including: 1. IP cameras and surveillance systems 2. Wireless access points 3. VoIP phones 4. Industrial automation equipment 5. Network switches and routers

Detailed and Complete Alternative Models

1. MAX5969AETE+: Similar PSE controller with higher maximum output current of 750mA.
2. LTC4267CGN#PBF: PSE controller with integrated power management features.
3. TPS23861PWR: Advanced PSE controller with enhanced diagnostics and monitoring capabilities.

These alternative models offer similar functionality to the MAX5986BETE+ and can be considered based on specific application requirements.

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