PD77020 PoE Power Management Controller and PD77728 Manager

Product Highlights > PD77020 PoE Power Management Controller and PD77728 Manager

            PD77020 PoE Power Management Controller and PD77728 Manager
                    Microchip PD77728 and PD77020 offer seamless integration for advanced multi-port PoE solutions
    

Image of Microchip's PD77728 PoE Management Chip The Microchip PD77020 controller offers multi-port PoE functions, including port mapping (port matrix), port priority, port status, and system power management. It is designed to work seamlessly with the PD77728, the seventh-generation IEEE® 802.3bt compliant PoE power sourcing equipment (PSE) manager.

The PD77020 is based on a Microchip SAMD21 controller and comes in a compact 5 mm × 5 mm 32-pin QFN package. The PD77728 is a fully integrated 8-port PoE manager with integrated field effect transistor (FET) switches and current sense resistors. Up to 12 PD77728 devices can be cascaded to provide 48 4-pair ports.

Features

PD77020 PSE system

Operating in the controller mode with PD77728, it has the following system and port-level features detection, classification, inrush, port power-up, and real-time protection (RTP)
Operating in the controller mode with PD77020 has the following system and port-level features

Support for up to 16 power banks
Power management
Communication with host (15-byte protocol)
LLDP

Host

High-level configuration (total power budget)
Ports priority definitions
Reading PoE information from PD77020

PD77728 device and PD77728-based PSE

Supported standards

IEEE 802.3bt compliant

Supports IEEE standard and legacy PD types
Supports multiple operational modes
Device features

Per-port integrated FET, sense resistor, and port diode
Total port resistance of 160 mOhm
Device power dissipation ≤ 2 W at full load

Surge up to 2 kV without additional components
Physical characteristics

Ambient temperature range -40°C to +85°C
56-pin 8 mm × 8 mm QFN package with thermal pad
MSL3, RoHS compliant

Applications

Switches and routers for enterprise, small and medium business, SOHO, and commercial markets

Switches for lighting market
PoE injectors

PoE Management Chip

Manufacturer Part Number	Description	Available Quantity	Price	View Details
PD77020-011000	IC PSE 32-QFN (5x5)	473 - Immediate	$1.87	View Details
PD77728ILQ-0111-TR	8 PORT IEEE 802.3 BT TYPE 4, FUL	1406 - Immediate	$6.82	View Details
PD77020-011000-TR	MCU FOR PD770XX FAMILY, BASED PD	0 - Immediate	See Page for Pricing	View Details