SI3460-E02-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Part Status:	Obsolete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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Introduction

Power Over Ethernet (PoE) is an advanced technology that enables communication networks to power multiple devices via the same system. It is a technology that uses standard Ethernet cables to carry electrical power to network devices such as computers and cameras. The advantage of PoE is that it eliminates the need for multiple power cables, as well as the need for separate power supplies in many cases.Power management integrated circuit (PMIC) is an integrated circuit used to control the voltage levels in electronic devices. It can be used to deliver power to the devices in a power over Ethernet (PoE) system, routing the power to specific channels in the cable. In this regard, a PMIC is an important component of a PoE system, as it ensures that the right voltage levels are provided to each device connected to the network. This article will focus on the SI3460-E02-GMR PMIC, including its application field and working principle.

Application Field

The SI3460-E02-GMR PMIC is used to control the power distribution for Ethernet-based PoE systems. It is commonly used in applications such as IP Camera, WAN (wide area network), PD (power docking) as well as in high power PoE systems such as surveillance and security systems.This PMIC is used to control the active cable length of standard and mid-span PoE systems. The active cable length consists of the power delivery (PD) channels and the data channels. These channels are used to send and receive power and data signals. The SI3460-E02-GMR PMIC ensures that the correct voltage levels are provided to each device connected to the network.The SI3460-E02-GMR is also used in various industrial, medical, enterprise, and automotive applications. These include machine vision, industrial automation, medical imaging, IP-PBX and wireless access points, among others. It is designed to ensure that the correct voltage levels are provided in these applications, while also providing protection against external power surge and short-circuits.

Working Principle

The SI3460-E02-GMR PMIC uses a sophisticated power signal control algorithm to detect the voltage level of thePoE system and control the power distribution accordingly. The voltage detection is based on measuring the differential voltage of the power signal and the signal difference between the pairs.The PMIC also integrates an over-voltage protection that can detect overvoltage conditions in the system and shut down the power distribution accordingly, avoiding any damage to connected devices. The over-voltage protection is effective for both normal and polarity reversed PoE systems.Another key feature of the SI3460-E02-GMR is its programmable power output. This feature enables the user to program the output power according to their specific needs. It is also capable of delivering up to 15 W of power to each channel, allowing for multiple devices to be powered simultaneously.

Conclusion

The SI3460-E02-GMR PMIC is an ideal choice for powering PoE systems in various applications. This device offers a reliable and programmable power output and can deliver up to 15 W of power per channel. It also has a sophisticated power signal control algorithm that helps to ensure that the correct voltage levels are provided to the connected devices. The PMIC also offers robust overvoltage protection, ensuring that your devices remain safe from damage due to overvoltage conditions.

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