SI3460-E03-GMR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Controller (PSE), DC/DC
Number of Channels:	1
Power - Max:	15.4W
Internal Switch(s):	No
Auxiliary Sense:	Yes
Standards:	802.3af (PoE)
Voltage - Supply:	11 V ~ 16 V
Current - Supply:	--
Operating Temperature:	-40°C ~ 85°C
Package / Case:	10-VFDFN Exposed Pad
Supplier Device Package:	11-QFN (3x3)

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The SI3460-E03-GMR is well known within the industry as a power management integrated circuit (PMIC) primarily used in Power Over Ethernet (PoE) Controllers. This product is a highly integrated, multi-channel PoE controller for applications such as IP phones, thin clients, and wireless access points. The SI3460-GMR is a single-chip solution that integrates all of the power management, protection, and control components necessary for PoE applications.

PoE Controllers provide a complete power solution for powering IP devices over an Ethernet cabling infrastructure. In essence, the PoE Controller manages the power delivery for the IP device over the Ethernet cable and ensures that the device receives power safely and efficiently. The SI3460-E03-GMR is tailored for this application and provides all the features needed to effectively handle power delivery in PoE applications.

Working Principle

The primary function of the SI3460-E03-GMR PMIC is the safe and efficient management of power delivery to an IP device over an Ethernet cable. To do this, the PoE controller must be able to detect, control, and protect the IP device from power overloading or any other potential issues. The core of the SI3460-E03-GMR utilizes an intelligent power control circuit (IPCC) for this purpose.

The IPCC is a closed loop power management system that monitors the current and voltage of the IP device and adjusts the power delivery accordingly. This ensures that the IP device is always receiving the power it needs without going beyond the specified power limits. The IPMC also includes overvoltage, overcurrent, and overtemperature protection to further safeguard the IP device from any potential power issues.

The SI3460-E03-GMR is a fully integrated solution that also contains a host controller, power supply sequencing, powerpath, and power diagnostics. The host controller provides the intelligence to monitor and control the system, while the power supply sequencing ensures that all power rails are powered up in the correct order. The powerpath manages and distributes the power to the system, while the power diagnostics monitors the system’s performance and provides feedback to the host controller.

Advantages

The SI3460-E03-GMR provides a variety of advantages over other PoE controllers on the market, including:

• Compact size and low power consumption
• High integration and scalability
• Broad temperature range
• Intelligent power control circuit for highly reliable power delivery
• Integrated host controller, power supply sequencing, powerpath, and power diagnostics
• Overvoltage, overcurrent, and overtemperature protection

The SI3460-E03-GMR is an ideal solution for PoE applications due to its combination of small size, low power consumption, and high integration. The integrated IPCC and other power delivery components allow for reliable and efficient power delivery to the IP device, while the overvoltage, overcurrent, and overtemperature protection ensures the IP device is always safe from potential power issues. The host controller, power supply sequencing, and power diagnostics further complement the PoE system by providing the intelligence to monitor and manage power delivery.

Some applications of the SI3460-E03-GMR include IP phones, thin clients, and wireless access points. The SI3460-E03-GMR is well suited to these and other PoE applications due to its combination of features, including small size, low power consumption, and advanced power management.

Conclusion

• The SI3460-E03-GMR is a highly integrated PMIC designed for Power Over Ethernet (PoE) applications.
• It features a closed loop power control system with intelligent power management and overvoltage, overcurrent, and overtemperature protection.
• The SI3460-E03-GMR is ideal for powering IP devices due to its combination of small size, low power consumption, and high integration.

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