Features

The following is a list of features that are supported in this device.

• Designed to support IEEE 802.3af and IEEE 802.3at standards.

• PD Detection and 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 PD70201 IC for up to 48 W

• 4-Pairs support with two PD70201 ICs for up to 96 W

• Less than 10μA Offset Current during Detection

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

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

• On-Chip Thermal Protection

• Integrated PWM - 100 kHz to 500 kHz adjustable DC-DC switching frequency DC-DC frequency can be

synchronized to external clock

• Supports low power mode operation for higher efficiency

– 50% maximum duty cycle

– Soft-start circuit to control the output voltage rise time

• Two out-of-phase driver stages for efficient synchronous rectification or active clamp

• PoE port input UVLO with programmable threshold and hysteresis

• Internal differential amplifier simplifying non-isolated step down converter

• Over load and short circuit protection

• 32-Pin 5 mm x 5 mm QFN Package

• RoHS Compliant

• MSL3

The following table lists the Microchip PD products offerings.

Table 1. Microchip Powered Device Products Offerings

Part

Type

Package

IEEE

802.3af

IEEE

802.3at

HDBaseT

(PoH)

UPoE

PD70100

Front end

3 mm × 4 mm 12L DFN

x

—

—

—

PD70101

Front end + PWM

5 mm × 5 mm 32L QFN

x

—

—

—

PD70200

Front end

3 mm × 4 mm 12L DFN

x

x

—

—

PD70201

Front end + PWM

5 mm × 5 mm 32L QFN

x

x

—

—

PD70210

Front end

4 mm × 5 mm 16L DFN

x

x

x

x

PD70210A

Front end

4 mm × 5 mm 16L DFN

x

x

x

x

PD70210AL

Front end

5 mm × 7 mm 38L QFN

x

x

x

x

PD70211

Front end + PWM

6 mm × 6 mm 36L QFN

x

x

x

x

PD70224

Ideal diode bridge

6 mm × 8 mm 40L QFN

x

x

x

x

PD70101 and PD70201

Datasheet

DS00003738A-page 2