Low-Voltage, Quad, Hot-Swap Controllers/Power Sequencers The MAX5929AEEG+ is a power management IC manufactured by Maxim Integrated (now part of Analog Devices). Below are its key specifications, descriptions, and features:
### **Specifications:**
- **Manufacturer:** Maxim Integrated (Analog Devices)
- **Part Number:** MAX5929AEEG+
- **Package:** 24-QSOP (Exposed Pad)
- **Operating Temperature Range:** -40°C to +85°C
- **Supply Voltage Range:** 36V to 72V (Input)
- **Output Voltage:** Adjustable
- **Output Current:** Up to 400mA (per channel)
- **Number of Channels:** 4
- **Power Dissipation:** Internally Limited
- **Compliance Standards:** IEEE 802.3af (Power over Ethernet - PoE)
### **Descriptions:**
The MAX5929AEEG+ is a quad power sourcing equipment (PSE) controller designed for Power over Ethernet (PoE) applications. It provides detection, classification, and power management for up to four PoE ports, complying with the IEEE 802.3af standard. The device integrates all necessary functions for safe power delivery to powered devices (PDs), including inrush current limiting, overload protection, and thermal shutdown.
### **Features:**
- **Integrated PSE Controller:** Supports IEEE 802.3af PoE standard.
- **Four Independent Ports:** Manages power for up to four Ethernet ports.
- **Programmable Current Limit:** Adjustable per-port current limit up to 400mA.
- **Detection & Classification:** Automatic PD detection and power classification.
- **Inrush Current Control:** Prevents excessive current during PD startup.
- **Overcurrent & Short-Circuit Protection:** Safeguards against faults.
- **Thermal Shutdown:** Protects the IC from overheating.
- **Low External Component Count:** Reduces design complexity.
- **Digital Interface:** I²C-compatible for configuration and monitoring.
This IC is commonly used in PoE switches, midspans, and other networking equipment requiring IEEE 802.3af compliance.
