Si3406-GM

Si3406-GM Class 3 15W Power Over Ethernet (PoE) PD Interface Devices

The Si3406-GM is the industry’s most highly-integrated, IEEE 802.3 at Type 1-compliant, PoE PD interface and pulse-width-modulated (PWM) switching regulator. By setting a new bar for device integration, lowest overall BOM cost, efficiency and reliability, the Si3406-GM enables designers to easily add PoE functionality to their Ethernet products. When included in the design of a PoE-enabled system, such as a wireless access point or VoIP phone, the Si3406-GM converts the high voltage (typically ±48 V) supplied over Ethernet copper UTP cabling into a regulated, low-voltage dc supply. In addition, the Si3406-GM combines all the required IEEE 802.3 at Type 1 detection, classification and hot swap interfaces with a complete, high efficiency, PWM switching regulator. 

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Specifications

Synchronous FET Driver true
Sleep Mode Basic
Temperature Range Min (°C) -40
Aux Adapter Support false
Maximum Output Power (W) 15
Package Type QFN20
Switching Frequency Range (kHz) 100
Transformer Bias Winding Input false
Switching Frequency Max (kHz) 500
Package Size (mm) 5x5
Description 802.3at PoE PD Interface with dc-dc
IEEE Specification 802.3 at Type 2
Efficiency (%) 83
Temperature Range Max (°C) 85
Auto MPS Support true
DC DC true
Synchronous FET Driver true
Sleep Mode Basic
Temperature Range Min (°C) -40
Aux Adapter Support false
Maximum Output Power (W) 15
Package Type QFN20
Switching Frequency Range (kHz) 100
Transformer Bias Winding Input false
Switching Frequency Max (kHz) 500
Package Size (mm) 5x5
Description 802.3at PoE PD Interface with dc-dc
IEEE Specification 802.3 at Type 2
Efficiency (%) 83
Temperature Range Max (°C) 85
Auto MPS Support true
DC DC true

PRODUCT DOCUMENTS

QUALITY AND PACKAGING

Look up product's green / pb-free status and information on RoHS, REACH, Halogen Free, and PFIS.


Certificate of Conformance
Product

si3406b5v2kit

Si3406 Compact, 5 V Buck Class 2 Powered Device Evaluation Kit

The Si3406 Compact 5V Buck Class 2 Evaluation Kit demonstrates a complete IEEE 802.3at Power over Ethernet PD system using Si3406 PoE PD device. The Si3406’s internal diode bridges, FETs, PoE interface, and dc-dc controller offer a complete PoE solution while using minimal PCB space.

MSRP $69.00

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