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MIC2358YLQ - IEEE 802.3af Octal Power Sourcing Equipment Controller

Description

The MIC2358YLQYLQ octal network power controller is designed for use in IEEE 802.3af-compliant powersourcing equipment (PSE).

The device provides standardized powered devices (PD) detection, classification, current-limit, and monitoring of both DC and AC maintain power signatures.

Features

  • Fully compliant with the IEEE 802.3af Power-overEthernet standard.
  • Controls eight independent 48V-powered Ethernet ports.
  • Powered port attributes:.
  • Up to 15.4W delivered per port.
  • Input over-voltage protection (OVP).
  • Powered Device detection and classification.
  • Active current limit.
  • Powered Device AC and DC disconnect supported.
  • Operates autonomously or by SMBus control.
  • 5-bit programmable digital addressi.

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Datasheet Details

Part number MIC2358YLQ
Manufacturer Micrel Semiconductor
File Size 465.40 KB
Description IEEE 802.3af Octal Power Sourcing Equipment Controller
Datasheet download datasheet MIC2358YLQ Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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MIC2358YLQ IEEE 802.3af Octal Power Sourcing Equipment Controller General Description The MIC2358YLQYLQ octal network power controller is designed for use in IEEE 802.3af-compliant powersourcing equipment (PSE). The device provides standardized powered devices (PD) detection, classification, current-limit, and monitoring of both DC and AC maintain power signatures. The MIC2358YLQYLQ can operate autonomously or be controlled by software through a SMBus-compatible interface. Its five address inputs support 32 unique MIC2358YLQ addresses allowing control and monitoring up to 256 powered Ethernet ports (32 MIC2358YLQ devices) by an external management application. For each port, the MIC2358YLQ uses external NChannel power FETs and current sense resistors to deliver and monitor power.
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