Description

• Parameters: IEEE 802.3AF/AT/BT-COMPLIANT POWERED DEVICE (PD) CONTROLLER
• Description: SD4928 is an IEEE 802.3af/at/bt-compliant powered device controller. It provides the powered devices (PD) in Power over Ethernet (PoE) with detection, classification, mark, and inrush current control. This IC also integrates on-chip detection resistors, has built-in undervoltage protection and overtemperature protection, and provides power good signal. At the same time, the magnitude of auxiliary supply voltage can be detected through AUX pin, when it reaches to rated voltage, it gives priority
• Features: Complete power interface for IEEE 802.3af/at/bt-compliant powered device Supports up to 71.3W PDs Integrated on-chip detection resistor External Hot Swap N-Channel MOSFET for lowest power dissipation and highest system efficiency Inrush current limit, with limit current settable externally Supports external power access Undervoltage protection Overtemperature protection Ordering Information Product Name
• Applications: PoE
• Current: 802.3A