SI3453-B01-GM

Overview

The SI3453-B01-GM is a four-channel Power over Ethernet (PoE) controller manufactured by Skyworks Solutions Inc. Designed for IEEE 802.3af and 802.3at standards, this integrated circuit functions as a Powered Device (PD) controller. It operates within a supply voltage range of 45V to 57V and draws a typical supply current of 4mA. The device supports a maximum power output of 40W and features internal switches for channel control. It is housed in a 40-VFQFN package with exposed pad dimensions of 6x6 mm, suitable for surface mount installation across an operating temperature range of -40°C to +85°C.

Feature Summary

• Supports dual standard compliance for both 802.3af and 802.3at PoE protocols
• Integrates four independent channels with internal switching capability
• Enables compact board design through a small form factor QFN package

Applications

• IP cameras and video surveillance systems
• Wireless access points and network infrastructure
• VoIP telephony endpoints

Procurement Notes

Verify component authenticity upon receipt, as the SI3453-B01-GM is listed as obsolete or end-of-life by the manufacturer. Confirm that any available stock matches the specific B01 suffix requirements for your design. Ensure proper handling procedures are followed due to moisture sensitivity level 3 classification. Cross-reference datasheet revisions to confirm pinout compatibility before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring multi-port PoE PD functionality with strict size constraints. The internal switch architecture reduces external component count compared to discrete solutions. Evaluate thermal performance carefully given the 40W power rating within the 6x6mm footprint. Ensure the host system can support the required 45V-57V input range during negotiation phases.

Part Context

This part belongs to the Skyworks SI3453 family of PoE controllers, which are engineered for high-density network applications. The series provides integrated management for power negotiation and delivery according to IEEE standards. The B01 suffix typically denotes specific tape-and-reel packaging or manufacturing lot variations within the broader product line.

Replacement Considerations

Publicly confirmed substitute part numbers include TPS2384PAP from Texas Instruments. Verify electrical parameter alignment and pin-to-pin compatibility before substitution.