SI3404-A-GMR Power management and control functions required ic

• shape: Flat
• Conductive Type: Bipolar Integrated Circuit
• Integration: MSI
• Technics: Semiconductor IC
• Application: Standard Generalized Integrated Circuit
• Type: Digital / Analog IC
• Model NO.: SI3404-A-GMR
• MFG.: SILICON LABS
• D/C: 22+
• Package: QFN20
• Quality: Genuine New Original
• Transport Package: Box
• Origin: China
• HS Code: 8542399000
• Production Capacity: 1000000PCS

Product Description

Description

SI3404-A-GMR: Power Over Ethernet Controller 1 Channel 802.3at (PoE) 20-QFN (4x4)

Mfr. Part#: SI3404-A-GMR

Mfr.: SILICON LABS

Datasheet: (e-mail or chat us for PDF file)

ROHS Status: 

Quality: 100% Original

Warranty: ONE YEAR

 

Product Status	Active
Type	Controller (PD), DC/DC
Number of Channels	1
Power - Max	15.4 W
Internal Switch(s)	Yes
Auxiliary Sense	Yes
Standards	802.3at (PoE)
Voltage - Supply	1.5V ~ 57V
Current - Supply	-
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	20-VFQFN Exposed Pad
Supplier Device Package	20-QFN (4x4)
Base Product Number	SI3404

 

Fully-Integrated IEEE 802.3 Type 1-Compliant POE PD Interface and High-Efficiency Switching Regulator with Compact Footprint


The Si3404 integrates the power management and control functions required in a Power-over-Ethernet (PoE) powered device (PD) application. These devices convert the high voltage supplied over the 10/100/1000BASE-T Ethernet connection to a regulated, low-voltage output supply. The optimized architecture of this device minimizes the solution footprint and external BOM cost and enables the use of low-cost external components while maintaining high performance. The Si3404 integrates a transient surge suppressor. The switching power FET and associated functions are also integrated. The integrated, current mode controlled switching regulator supports isolated or non-isolated flyback and buck converter topologies. The switching frequency for the regulator is tunable with a simple external resistor value to help avoid unwanted harmonics for better emissions control. This device fully supports the IEEE 802.3at specification for Type 1, single-event classification. Standard external resistors provide the proper IEEE 802.3 signatures for the detection function and programming of the classification mode, and internal startup circuits ensure well-controlled soft-start initial operation of both the hotswap switch and the voltage regulator. The Si3404 is available in a low-profile, 20-pin, 4 x 4 mm QFN package.



APPLICATION
• Voice over IP telephones • Wireless access points • Security and surveillance IP cameras • Point-of-sale terminals • Internet appliances • Network devices

 

Why choosing us

• Located in Shenzhen, the electronic market center of China.
• 100% guarantee components quality: Genuine Original.
• Sufficient stock on your urgent demand.
• Sophisticated colleagues help you solve problems to reduce your risk with on-demand manufacturing
• Faster shipment: In stock components can ship the same day .
• 24 Hours service 

 

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