IP804AR数据手册IC+中文资料规格书

描述 Description

IP804AR is a 4-port 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 Midcap and Endpoint PSE applications.
 IP804AR meets all IEEE 802.3AF-2003 requirements, such as multi-point resistor detection, PD classification, DC Disconnect, and Back-off for Midcap. It also meets all IEEE 802.3AT-2009 requirements, such as two-event classification and supplies maximum 36W per port.
 IP804AR comprises internal temperature monitoring and thermal protection to protect against junction overheating. The 3.3V regulator is built-in to support external devices. Multiple IP804ARs can integrate to build a 4 x N ports PSE system, and I2C bus uses to collect PD power status from each IP804AR to support global power management.
 Management switch host has options to communicate IP804ARs via I2C bus for PSE management activities. Opt couplers can be implemented to provide electrical isolations between the host and IP804ARs for signal communication.

特性 Features

• IEEE 802.3AF-2003 and 802.3AT-2009 compliant 

• Single DC power supply voltage input (45~57V) 

• Wide temperature range: -40°C~+85°C 

• Supplies 4 independent power ports 

• Built-in power FETs 

• 0.1R Sense embedded
• I2C Bus to access up to 8 x IP804AR devices 

• Continuous system monitoring for every port 

• Independent system parameters setting for every port 
 

• Thermal monitoring and protection 

• Built-in 3.3V regulators for external devices 

• Built-in Power-on Reset 

• Configurations:
30W x 4 ports 

• Total Current / Power Limit and Overload / Temperature Warning LED
• Support Serial and Direct LED
• Support 4-Pair 60W application
• Support 24V low voltage application
• Built-in EEPROM interface for dumb application 

• Package and Operating Temperature
• 48 Pin (7mmx7mm) MQFN, -40~85°C