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SI3400, SI3400-BZ-GM, SI3400BZ-GM

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Info of SI3400
Info of SI3400-BZ-GM
Info of SI3400BZ-GM

SI3400, SI3400-BZ-GM, SI3400BZ-GM Selling Leads, Datasheet

MFG:Silicon Laboratories Inc Category:Integrated Circuits (ICs) Package Cooled:2007+ROHS D/C:08+

SI3400, SI3400-BZ-GM, SI3400BZ-GM Picture

SI3400, SI3400-BZ-GM, SI3400BZ-GM Datasheet download

Five Points

Part Number: SI3400

Category: Integrated Circuits (ICs)

MFG: Silicon Laboratories Inc

Package Cooled: 2007+ROHS

D/C: 08+

Description: IC POWER OVER ETHERNET 20QFN

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SI3400 General Description

The Si3400 and Si3401 integrate all power management and control functions required in a Power-over-Ethernet (PoE) powered device (PD) application. The Si3400 and Si3401 convert the high voltage supplied over the 10/100/1000BASE-T Ethernet connection into a regulated, low-voltage output supply. The optimized architectures of the Si3400 and Si3401 minimize the solution footprint, reduce external BOM cost, and enable the use of low-cost external components while maintaining high performance. The Si3400 and Si3401 integrate the required diode bridges and transient surge suppressors, thus enabling direct connection of ICs to the Ethernet RJ-45 connector. The switching power FET and all associated functions are also integrated. The integrated switching regulator supports isolated (flyback) and non-isolated (buck) converter topologies. The Si3400 and Si3401 support IEEE STD™ 802.3-2005 (future instances are referred to as 802.3) compliant solutions as well as pre-standard products, all in a single IC. Standard external resistors connected to the Si3400 and Si3401 provide the proper 802.3 signatures for the detection function and programming of the classification mode. Startup circuits ensure well-controlled initial operation of both the hotswap switch and the voltage regulator. The Si3400 and Si3401 are available in low-profile, 20-pin, 5 x 5 mm QFN packages. While the Si3400 is designed for applications up to 10 W, the Si3401 is optimized for higher power applications (up to approximately 15 W). See also "AN313: Using the Si3400/01 in High Power Applications" for more information.

SI3400 Features

· 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
· Support non-isolated and isolated switching topologies
· Comprehensive protection circuitry
· Transient overvoltage protection
· Undervoltage lockout
· Early power-loss indicator
· Thermal shutdown protection
· Foldback current limiting
· Programmable classification circuit
· Low-profile 5 x 5 mm 20-pin QFN
· Pb-Free and RoHS-compliant

SI3400 Typical Application

·Voice over IP telephones and adapters
·Wireless access points
·Security cameras
·Point-of-sale terminals
·Internet appliances
·Network devices
·High power applications (Si3401)

SI3400 Connection Diagram

SI3400-BZ-GM Parameters

Technical/Catalog Information	SI3400-BZ-GM
Vendor	Silicon Laboratories Inc
Category	Integrated Circuits (ICs)
Applications	IP Phones, Power over LAN, Network Routers and Switches
Type	Power over Ethernet Switch (PoE)
Package / Case	20-QFN
Packaging	Tube
Current Limit	525mA
Internal Switch(s)	Yes
Operating Temperature	-40°C ~ 85°C
Voltage - Supply	2.8 V ~ 57 V
Drawing Number	*
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	SI3400 BZ GM SI3400BZGM 336 1321 ND 3361321ND 336-1321

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