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 to PD; The T2P output indicates the number of classification events received during IEEE 802.3-compliant mutual identification and negotiation with PSE.
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
Product Name | Package form | Marking | Hazardous Substance Control | Packing Type | Remarks |
---|---|---|---|---|---|
SD4928 | MSOP-10-185-0.5 | SD4928 | Halogen free | Tube | |
SD4928TR | MSOP-10-185-0.5 | SD4928 | Halogen free | Tape & Reel |
title | Types of | Size (KB) | date | Download the latest English version |
---|---|---|---|---|
SD4928 | 0 | 1970-01-01 | SD4928 Brief Datasheet |