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SKYWORKS SI3454-B01-IM

Hersteller
Herst.-Teilenr.
SI3454-B01-IM
LCSC-Nr.
C3189388
Verp.
QFN-38(5x7)
Kundennummer
Hauptmerkm.
Power Sourcing Equipment (PSE) QFN-38(5x7) Power Over Ethernet (PoE) Controllers RoHS
DatenblattSKYWORKS SI3454-B01-IM
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Stk.E-Preis(Nur als Referenz)Gesamtbetrag
1+$ 3.9585$ 3.96
200+$ 1.5329$ 306.58
406+$ 1.4787$ 600.35
812+$ 1.4523$ 1179.27
Standardgehäuse406/Full Tray
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Produktspezifikationen

Alle
TypBeschreibung
KategorieIntegrated Circuits (ICs)/Power Management (PMIC)/Power Over Ethernet (PoE) Controllers
HerstellerSKYWORKS
Verp.QFN-38(5x7)
FeaturesBuilt-in LDO;PGOOD status indication;Overvoltage protection;Undervoltage Protection;Thermal Protection;Overcurrent Protection;PD detection and disconnect identification;Dual event classification detection
TypePower Sourcing Equipment (PSE)
Operating Temperature-40℃~+85℃
number of channels4

Beschreibung

KI-Übersetzung

A fully-programmable, four-port power management controller for IEEE 802.3 compliant Power Sourcing Equipment (PSE). Designed for use in PSE endpoint (switches), it integrates four independent ports, each with IEEE-required powered device (PD) detection and classification functionality. It features a fully-programmable architecture that enables powered device (PD) disconnect using a dc sense algorithm, a robust multipoint detection algorithm, software-configurable per-port current and voltage monitoring, and programmable current limits to support the IEEE 802.3at standard. Intelligent protection circuitry includes input undervoltage detection, output current limit, and short-circuit protection. It operates by host processor control through a three-wire, I²C-compatible serial interface. Independent serial data input and output pins enable high-voltage isolation through external isolators. An interrupt pin is used to alert the host processor of various status and fault conditions. The device also supports a pin-selectable AUTO mode for autonomous operation, without the need for a host processor. It also features an on-chip dc-dc converter for creating the digital voltage rail from the PoE voltage, thus enabling single-rail power operation.

Merkmale

KI-Übersetzung
  • Quad-Port Power Sourcing Equipment (PSE) controller IEEE 802.3at Type I and II compliant
  • Port priority shutdown control
  • Adds enhanced features for maximum design flexibility:
    • Per-port current and voltage monitoring
    • PoE Plus support with programmable current limits
    • Multi-point detection
    • Programmable power MOSFET gate drive control
    • Configurable watchdog timer enables failsafe operation
  • Maskable interrupt pin
  • Comprehensive fault protection circuitry includes:
    • Power undervoltage lockout
    • Output current limit and short-circuit protection
    • Thermal overload detection
  • Supports pin-selectable AUTO mode
  • Extended operating temp range: –40 to +85 °C
  • 5x7 mm 38-pin QFN package (RoHS-compliant)
  • On-chip dc-dc converter enables single-rail power operation

Anwendungen

KI-Übersetzung
  • IEEE Power Sourcing Equipment
  • IP Phone Systems (PSE)
  • Smartgrid Switches
  • Power over Ethernet (PoE)
  • Ruggedized and Industrial Switches