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
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
