PD69201

1-Port PSE PoE Manager

Introduction

Microchip’s PD69201 device is an IEEE

Manager, used in Ethernet switches to allow network devices to share power and data over the same cable. With

minimal external components, the PD69201 supports both IEEE 802.3af/at and Legacy Powered Devices (PDs).

Integrating power, analog, and state-of-the-art logic, the PD69201 is available in a 10-pin, 3 mm × 4 mm DFN

package.

Features

• Fully IEEE 802.3af and at compliant

• Includes two-event classification

• Supports pre-standard PD detection

• Single DC voltage input (32 V–57 V)

• Wide temperature range: –40 °C to 85 °C

• Low thermal dissipation (internal 100 mΩ sense

resistor)

• Continuous port and system data monitoring

• Power soft-start mechanism

• On-chip thermal protection

• Voltage monitoring and protection

• Internal power-on reset

• RoHS compliant

• MSL1

Application Block Diagrams

The PD69201 may be used in either an unmanaged standalone or a managed configuration.

Figure 1. Unmanaged Application

Figure 2. Managed Application

1 IREF

240 KΩ

4.7

µF

2 Disable_Port

3 Reserved

4 MODE/SDA

5 Power_set/SCL

VPORT_NEG 10

VMAIN 9

LED 8

DRV_VAUX5 7

VAUX5 6

GND

(Thermal Pad)

100

nF

Power

Supply

+

–

100

nF

68.1

kΩ

100

nF

VAUX5

VAUX5

To Host

To Host

To Host

10 KΩ

10

KΩ

10

KΩ

PD69201

PoE Manager

PoE Out

10 MΩ

4.7µF

69.1

Ω

1 IREF

240 KΩ

4.7

µF

2 Disable_Port

3 Reserved

4 MODE/SDA

5 Power_set/SCL

VPORT_NEG 10

VMAIN 9

LED 8

DRV_VAUX5 7

VAUX5 6

GND

(Thermal Pad)

100

nF

Power

Supply

+

–

100

nF

68.1

kΩ

100

nF

VAUX5

VAUX5

To Host

To Host

To Host

10 KΩ

10

KΩ

10

KΩ

PD69201

PoE Manager

PoE Out

10 MΩ

4.7µF

69.1

Ω

Datasheet

DS00003454D-page 1