Quad Network Power Controller for Power-Over-LAN The MAX5945CAX is a Power over Ethernet (PoE) interface controller manufactured by Maxim Integrated. Below are its specifications, descriptions, and features based on factual information:
### **Specifications:**
- **Manufacturer:** Maxim Integrated
- **Part Number:** MAX5945CAX
- **Type:** PoE Interface Controller
- **Package:** 36-pin SSOP (Shrink Small Outline Package)
- **Operating Voltage Range:** 36V to 57V (IEEE 802.3af compliant)
- **Detection Voltage:** 2.7V to 10V
- **Classification Current:** Programmable (IEEE 802.3af compliant)
- **Power Dissipation:** Up to 15.4W (Class 0-3)
- **Operating Temperature Range:** 0°C to +70°C
### **Descriptions:**
The MAX5945CAX is a fully integrated IEEE 802.3af-compliant Power over Ethernet (PoE) interface controller designed for Powered Devices (PD). It provides PD detection, classification, and undervoltage lockout (UVLO) with programmable hysteresis. The device includes an integrated switching regulator controller for DC-DC conversion, simplifying PoE system design.
### **Features:**
- **IEEE 802.3af Compliant:** Supports detection, classification, and power delivery.
- **Integrated PWM Controller:** Includes a current-mode DC-DC controller for isolated or non-isolated converters.
- **Programmable UVLO:** Adjustable undervoltage lockout with hysteresis.
- **Dual-Purpose Detection Input:** Supports both resistive and current-based detection.
- **Classification Control:** Programmable classification current for power level identification.
- **Thermal Protection:** Built-in thermal shutdown for safety.
- **Low-Power Mode:** Supports low-power operation when not in use.
- **Wide Input Voltage Range:** Operates from 36V to 57V.
This information is based solely on the manufacturer's datasheet and technical documentation.
