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PD39208

IEEE 802.3af/at 8 port PoE PSE Manager

Status: In Production

Features:

  • Part of PD39210 + PD39208 chip set
  • 8 independent PoE channels
  • Complies with IEEE 802.3af and IEEE 802.3at
  • Drives 2-pair power ports
  • Single DC voltage input (32V to 57V) w/ built in 3.3V and 5V regulators
  • Input voltage out of range protection, voltage monitoring / protection
  • Wide ambient temperature range: -40°C to +85°C
  • On-chip over-temperature thermal protection and monitoring
  • Low power dissipation (0.1ohm sense resistor and 0.2ohm MOSFET Rdson per channel)
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The PoE manager IC integrates power, analog, and state-of-the-art logic into a single 56-pin, plastic QFN package. The device is used in Ethernet switches and midspans to allow network devices to share power and data over the same cable. The PD39208 device is an 8-port, mixed-signal, and high-voltage PoE driver. Together with the PD39210 external MCU, it performs as a PSE system designed specifically to support the IEEE 802.3at standard. The PD39208 supports supply voltages between 32V and 57V without additional power supply sources. An on-going monitoring of system parameters for the host software is available via system communication. Internal thermal protection is implemented in the chip. PD39208 is a low-power dissipation device that uses internal MOSFETs and internal 100 mΩ sense resistors. PD39208 is available in a 56 pin, 8 mm x 8 mm QFN package.

Additional Features
  • Part of PD39210 + PD39208 chip set
  • 8 independent PoE channels
  • Complies with IEEE 802.3af and IEEE 802.3at
  • Drives 2-pair power ports
  • Single DC voltage input (32V to 57V) w/ built in 3.3V and 5V regulators
  • Input voltage out of range protection, voltage monitoring / protection
  • Wide ambient temperature range: -40°C to +85°C
  • On-chip over-temperature thermal protection and monitoring
  • Low power dissipation (0.1ohm sense resistor and 0.2ohm MOSFET Rdson per channel)
  • Power soft start mechanism, Internal power on reset
  • Can cascade up to six (6) PoE devices (48 physical 2-pair ports)
  • Detailed port status
  • Programmable threshold temperature alarm limit
  • Interrupt out pin for system and port events
  • Forced port power ON function
  • Port power limit setting, port matrix and priority
  • 56-pin, 8 mm x 8 mm QFN package
Parametrics
Name
Value
Product Type
PSE Manager
Standards Supported
IEEE 802.3af, IEEE 802.3at
Ports
8
2-Pair Power
35.7W
4-Pair Power
NA
Maximum Current
0.620A
PoE Class (0-8)
0-4
PoE Type (1-4)
1-2
FETs
Internal 0.2 Ohm
Sense Resistor
Internal 0.1 Ohm
Operating Temperature
-40 to 85
PoE Controller
PD39210
Host Interface
NA
Temperature Grade
Industrial

Documents

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Data Sheets

  
1658KB

Development Environment

  • Demo & Evaluation Boards
Demo & Evaluation Boards
8 x 2-pair PSE EVB  featuring PD39208 + PD39210 loaded w/IEEE802.3at FW
8 x 2-pair PSE EVB featuring PD39208 + PD39210 loaded w/IEEE802.3at FW ( EV14G15A )

The EV14G15A evaluation board is developed based on PD39208 and PD39210 chipsets. This EVB demonstrates the operation of an eight (2-pair) port system. Microchip's PD39208 Power over Ethernet (PoE) manager IC integrates power, analog, and state-of-the-art logic into a single 56-pin, plastic QFN package. The device is used in Ethernet switches and midspans to allow network devices to share power...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Dimension
Solder Composition
JEDEC Indicator
RoHS
China EFUP
PD39208ILQ-TR-LE
0.189300
0.460000
56
VQFN
8x8x1.0mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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