IP8008中文资料4-Port PSE Controller数据手册IC+规格书

描述 Description

IP8008 is an 8-channel PSE (Power Sourcing Equipment) controller IC for PoE (Power over Ethernet) systems. It integrates power, analog and logic circuits into a single chip, and can be used for Midspans and Endpoint PSE applications.IP8008 meets all IEEE 802.3bt-2018 single- signature PD/dual-signature PD requirements, such as multi-point resistor detection, connection check, five-event PD classification, Autoclass, and DC Disconnect. It also meets all IEEE 802.3af-2003, & 802.3at-2009 requirements, such as two-event classification and supply maximum 48W per port.IP8008 comprises internal temperature monitoring and thermal protection to protect against junction overheating. The 3.3V regulator is built-in to support internal system. Multiple IP8008 can integrate to build a maximum 8 x 16 ports PSE 802.3at, or 4 x 16 ports PSE 802.3bt system, and I2C bus uses to collect PD power status from each IP8008 to support global power managements.Management switch host has options to communicate IP8008 via I2C bus non-isolation for PSE management activities, or optocouplers can be implemented to provide electrical isolations between the host and IP8008 for signal communication.

特性 Features

• IEEE 802.3af-2003 and 802.3at-2009 802.3bt -2018 type3, type4 compliant
• 4 ports for 4 pairs/2 channels per port
• 8 ports for 2 pairs/1 channel per port
• 8 independent power channels
• Configurations: 45W x 8 ports or 90W x 4 ports
• Single DC power supply voltage input ( 44~57V )
• I2C Bus to access up to 16 x IP8008 devices
• Cascade mode dynamic power management
• Continuous system monitoring for every channel
• Independent system parameters setting per channel
• Thermal monitoring and protection
• Auto-class discovery and power measurement
• Built-in 8 power FETs
• Built-in 8 pcs 0.1ohm sensing resistor, low power dissipation
• Built-in 3.3V regulators for internal system
• Built-in Power on Reset
• Built-in LEDs control for multi-port use
• Built-in EEPROM interface for dumb application
• Wide temperature range: -40°C~+85°C
• Package: 56 Lead QFN 8mm x 8mm x 0.85mm, ( 0.5mm pitch, with EPAD )