Download Si3406 Datasheet PDF
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Si3406 Description

Si3406x Family Data Sheet Fully-Integrated IEEE 802.3-pliant POE+ PD Interface and High-Efficiency Switching Regulators with Sleep, Wake, and LED Drive The Si3406x family integrates all power management and control functions required in a Power-over-Ethernet Plus (PoE+) powered device (PD) application. These devices convert the high voltage supplied over the 10/100/1000BASE-T Ethernet connection to a regulated,...

Si3406 Key Features

  • Type 1 (PoE) or Type 2 (PoE+) power
  • Full IEEE 802.3at pliance
  • Synchronous secondary FET driver
  • Current mode dc-dc converter
  • Tunable switching frequency
  • Auxiliary transformer winding support
  • Auxiliary wall adapter support (12 V to 57 V)
  • Internal hotswap and switching FET bypass
  • Automated maintain-power-signature (MPS)
  • Sleep mode augmented with wake pin