MAX5956BUEE+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, Programmable Current Limit, Thermal Shutdown Protection
• Package: 16-TSSOP
• Essence: Power-over-Ethernet (PoE) Controller
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Input Voltage Range: 36V to 57V
• Output Voltage Range: 3.3V to 5.5V
• Maximum Output Current: 600mA
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 100µA (typical)

Detailed Pin Configuration

1. VDD: Power Supply Input
2. GND: Ground
3. EN: Enable Pin
4. FLT: Fault Indicator Output
5. ILIM: Current Limit Programming Pin
6. VOUT: Output Voltage
7. FB: Feedback Pin
8. SS: Soft-Start Pin
9. PGND: Power Ground
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 PoE controller for power sourcing equipment (PSE)
• Supports IEEE 802.3af/at/bt standards
• Programmable current limit for each port
• Thermal shutdown protection
• Overvoltage and undervoltage protection
• Fast fault detection and reporting
• Soft-start feature for smooth power-up

Advantages and Disadvantages

Advantages: - High efficiency for power conversion - Flexible current limit programming - Comprehensive protection features - Compact package size - Easy integration into PoE systems

Disadvantages: - Limited output current capacity (600mA) - Requires external components for complete PoE implementation - Not suitable for high-power applications

Working Principles

The MAX5956BUEE+T is a Power-over-Ethernet (PoE) controller designed for power sourcing equipment (PSE). It integrates the necessary functions to provide power to Ethernet-connected devices, such as IP cameras, wireless access points, and VoIP phones. The device supports various PoE standards, including IEEE 802.3af/at/bt.

The controller regulates the input voltage from the power source and converts it to the desired output voltage required by the connected device. It incorporates programmable current limit functionality, allowing customization of the power delivery for each port. The device also includes thermal shutdown protection, ensuring safe operation under extreme temperature conditions.

The MAX5956BUEE+T features fast fault detection and reporting, enabling quick identification of any issues in the PoE system. It has a soft-start feature that gradually ramps up the output voltage during power-up, preventing sudden voltage spikes that could damage the connected devices.

Detailed Application Field Plans

The MAX5956BUEE+T is primarily used in Power-over-Ethernet applications, where it serves as the controller in power sourcing equipment (PSE). It finds extensive use in the following fields:

1. Network infrastructure: Switches, routers, and hubs.
2. Security systems: IP cameras, access control systems.
3. Wireless communication: Wireless access points, Wi-Fi routers.
4. Voice over IP (VoIP): IP phones, conference room systems.
5. Industrial automation: Remote monitoring, control systems.

Detailed and Complete Alternative Models

1. MAX5940BEE+T: Similar PoE controller with higher output current capacity (up to 750mA).
2. MAX5969BUE+T: PoE controller with integrated power MOSFETs for higher power applications.
3. LTC4267CGN#PBF: IEEE 802.3af-compliant PoE controller with advanced power management features.

(Note: The above alternative models are just a few examples and not an exhaustive list.)

Word count: 518 words