SI3402-A-GM

Series:	--
Packaging:	Tray
Part Status:	Obsolete
Type:	Controller (PD)
Number of Channels:	1
Power - Max:	15W
Internal Switch(s):	Yes
Auxiliary Sense:	No
Standards:	802.3af (PoE)
Voltage - Supply:	2.8 V ~ 57 V
Current - Supply:	2mA
Operating Temperature:	-40°C ~ 85°C
Package / Case:	20-VQFN Exposed Pad
Supplier Device Package:	20-QFN (5x5)
Base Part Number:	SI3402

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Power Over Ethernet (PoE) Controllers

SI3402-A-GM Application Field and Working Principle

Power over Ethernet (PoE) controllers have become increasingly popular in modern industrial automation systems, due to their ability to manage and monitor power sources without additional wiring costs. The SI3402-A-GM is a particular kind of PoE controller due to its integrated functions, which make it well suited for applications across various industries.The SI3402A-GM is a single-chip Power Management Interface Controller (PMIC) designed for Power over Ethernet (PoE) applications. It is designed to replace traditional PoE controllers that typically require several integrated circuits (ICs) to manage multiple functions in a system. The controller is compliant with IEEE802.3af and IEEE802.3at standards and offers compatibility with different PoE systems.The SI3402-A-GM controller provides a number of integrated features. Its Power Delivery Transformer (DPT) control circuitry controls and monitors the power transformers connected to its integrated magnetics, in order to ensure reliable and efficient communication. The controller’s small footprint makes it well suited for space-constrained applications. Additionally, the controller features a “standby mode”, allowing it to save power when not in use. This functionality makes it suitable for applications where power conservation is a top priority.In terms of design, the SI3402-A-GM is pin compatible with its predecessor, the SI3402-A-GS. This makes it a suitable replacement for existing applications. The controller also integrates Poe Fault detection, Class Detection and Class control circuitry, which allows it to detect and control the power supply to connected PDs. Additionally, the controller offers a wide input voltage range, from 20V to 57V, making it suitable for a variety of industrial PoE applications.In terms of applications, the SI3402-A-GM can be utilized in various fields. In industrial automation, it is often utilized in the design of motion control systems, as it offers immediate control over a PoE system. Additionally, the controller is often utilized in robotic arm control systems, due to its adaptability and dependable performance. Moreover, the controller can be utilized in Ethernet imaging, security monitoring, and surveillance systems, as well as wireless networks, due to its robust PoE support.In conclusion, the SI3402-A-GM is a reliable, versatile and affordable controller, which makes it well suited for a variety of Power over Ethernet applications. Its integrated features make it an excellent choice for industrial automation and robotics, as well as for applications in the fields of monitoring and surveillance.

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