PD70100/PD70200

Product Overview

The PD70100 and PD70200 devices are part of Microchip’s series of Power over Ethernet (PoE) Powered Devices

chips (PD). The PD70100 and PD70200 devices transmit integrated power and analog data in a single 12-pin

package. They are used in Powered Devices (PD), thus enabling next generation network devices to share power

and data over the same cable.

Microchip’s PD family offers a solution to any PD application compliant with IEEE

standards and 4-pairs extra power applications. The IC family’s components can be used in both indoor and outdoor

applications.

The device family meets all PD-side-standards such as:

• Detection

• Classification

• Integrated isolation switch with inrush current limiter, and over-current protection

• Two-events classification recognition and AT flag generation (PD70200 only).

In addition, the devices have a discharge mechanism for a DC/DC input capacitor, ensuring quick redetection

capability in case the RJ-45 plug is disconnected and reconnected within a short time span.

PD70200 IC design specifically supports IEEE 802.3at standard, including two events classification detection that

enables the PD to distinguish whether the connected power source equipment (PSE) is IEEE 802.3at or IEEE

802.3af based.

The PD70100/PD70200 ICs are designed to support 4 pair applications for PDs that require higher power.

Features

• Designed to Support IEEE 802.3af and IEEE 802.3at standards

• PD Detection & Programmable Classification Signature

• Two-events Classification Flag

• Signature Resistor Disconnection after Detection

• Integrated 0.6 Ω Isolating Switch and Inrush Current Limiter.

• 4-pairs support with a single PD70200 IC for up to 48 W

• 4-pairs support with two PD70200 ICs for up to 96 W

• Less than 10 μA Offset Current during Detection

• Single DC Voltage Input (37 V – 57 V)

• Wide Operating Temperature Range: −40 to 85 °C

• On-chip Thermal Protection

• 12-pin 3 × 4mm Package

• RoHS Compliant

• MSL3

Datasheet

DS00003639A-page 1