MICROCHIP PD69101ILQ-TR

A single-port, mixed-signal, and high-voltage Power over Ethernet (PoE) driver. It is utilized in Ethernet switches and enables the network devices to share power and data over the same cable. It enables detection of IEEE 802.3af-2003 compliant powered devices (PDs) and IEEE 802.3at high-power devices, ensuring safe power feeding and disconnection of ports, with full digital control and a minimum of external components. A plug-and-play device, it executes all real-time functions as specified in the IEEE 802.3af-2003 (AF) and IEEE 802.3at high-power (AT) standards, including load detection, AF and AT classification, and multiple classification attempts (MCA). Integrating power, analog, and state-of-the-art logic, it fits into a single 24-pin plastic QFN package. The chip includes built-in internal thermal protection, and two LEDs provide port state and port type (AF/AT) indication.

• Fully AF and AT compliant
• Includes two-event classification
• Supports pre-standard PD detection
• Single DC voltage input (32V–57 VDC)
• Supports 2-pairs VMAIN out-of-range protection
• Wide temperature range: -40°C to 85°C
• Overtemperature protection
• Low thermal dissipation [0.5Ω sense resistor]
• Includes on/off command pin
• 2× direct LEDs drive
• Continuous port monitoring and system data
• Configurable load current setting
• Configurable AT/AF modes
• Configurable standard and legacy detection mode
• Power soft-start mechanism
• On-chip thermal protection
• Voltage monitoring and protection
• Built-in 3.3 VDC regulator
• Internal power-on-reset
• RoHS compliant
• Low Rdson FET: 0.3Ω
• MSL3

• A simple plug-and-play PoE solution for a single Ethernet port switch or hub