PD69101

1-Port PSE PoE Controller Datasheet

Introduction

Microchip's PD69101 device is 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

devices, ensuring safe power feeding and disconnection of ports, with full digital control and a minimum of external

components. A plug-and-play device, the PD69101 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, the PD69101 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.

PD69101 device offer the following important features.

• Designed to detect and disable disconnected ports, utilizing DC disconnection methods as specified in the AF

and IEEE802.3 af/at standards.

• Low-power device using an internal 0.34Ω MOSFET and an external 0.5Ω sense resistor.

• Optionally detects legacy/pre-standard PD devices.

• Provides overload, underload, overvoltage, overtemperature, and short-circuiting PD protection.

• Supports supply voltages ranging from 32V to 57 VDC with no need for additional power supply sources.

and its subsidiaries

Datasheet

DS00004280A-page 1