SI3402-B - Silicon Laboratories

SI3402-B FULLY-INTEGRATED 802.3-COMPLIANT POE PD INTERFACE AND LOW-EMI SWITCHING REGULATOR

 Point-of-sale terminals  Internet appliances  Network devices  High power applications The Si3402 integrates all power management and control functions required in a Power-over-Ethernet (PoE) powered device (PD) application. The Si3402 converts the high voltage supplied over the 10/100/1000BASE-T Ethernet connection into a regulated, low-voltage outpu.

Features

 Pin-compatible replacement for the obsolete Si3402-A
 IEEE 802.3 standard-compliant solution, including pre-standard (legacy) PoE support
 Highly-integrated IC enables compact solution footprints
Minimal external components
Integrated diode bridges and transient surge suppressor
Integrated switching regulator controller with on-chip power FET
Integrated dual current-limited hotswap switch
 Programmable classification circuit
 Incorporates switcher EMIreduction techniques.
 Supports non-isolated and isolated switching topologies
 Comprehensive protection circuitry
Transient .