Microchip PD69101ILQ-TR

控制器（PSE）802.3at（PoE+），802.3af（PoE）

Overview

The device is utilized in Ethernet switches and enables network devices to share power and data over the same cable. It enables detection of IEEE802.3af-2003 compliant PDs (Powered Devices) and IEEE802.3at High Power Devices ensuring safe power feeding and disconnection of ports with full digital control and a minimum of external components. Integrating power, analog and state of the art logic, the PD69101ILQ-TR device fits into a single 24-pin, plastic QFN package. A “plug and play” device, the PD69101ILQ-TR executes all real time functions as specified in the IEEE802.3af-2003 (“AF”) and IEEE802.3at High Power (“AT”) standards, including load detection, “AF” and “AT” classification, and using Multiple Classification Attempts (MCA). The PD69101ILQ-TR is designed to detect and disable disconnected ports, utilizing DC disconnection methods, as specified in the IEEE 802.3af-2003 and IEEE802.3at-2009 standards.It can optionally detect legacy/pre-standard PD devices. The PD69101ILQ-TR also provides PD protection such as over-load, under-load, over-voltage, over-temperature and short-circuiting. It supports supply voltages ranging from 44 V to 57 VDC with no need for additional power supply sources. The PD69101ILQ-TR is a low power device using an internal 0.34ohm MOSFET and an external 0.5ohm sense resistor. The chip includes built-in internal thermal protection. Two LEDs provide port state's indication and port type (AF/AT).

Features

Tape & Reel (TR) package
24 pins
55V power supplies

Applications

There are a lot of Microchip Technology PD69101ILQ-TR Power Over Ethernet (PoE) Controllers applications.

• Dual Signature PD/Forced UPOE

• Pico-base Stations

• Power Modules

• Power over Ethernet

• IP Phone Power Management

• IEEE 802.3af Compliant PoE Powered Devices

• High Temperature Industrial Applications

• Pass-through System

• Security Cameras

• Single-Port PSE End-Point Applications