Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Controller (PSE)
Number of Channels:	4
Power - Max:	36W
Internal Switch(s):	Yes
Auxiliary Sense:	Yes
Standards:	802.3at (PoE+), 802.3af (PoE)
Voltage - Supply:	44 V ~ 57 V
Current - Supply:	10mA
Operating Temperature:	-10°C ~ 85°C
Package / Case:	48-VFQFN Exposed Pad
Supplier Device Package:	48-QFN (8x8)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PD69104B1ILQ-TR Application Field and Working Principle

Introduction

Power over Ethernet (PoE) is a technology that enables electric power delivery over twisted-pair networking cables to distant devices without any additional power cords. This power transmission technology has been widely used in network equipment, digital cameras, IP clocks, wireless access points, security systems, VoIP phones, and other data-transfer devices. PD69104B1ILQ-TR is a specific controller IC of Power over Ethernet (PoE) that it\'s developed to simplify that design of power sourcing equipment (PSE) which is used in the active PoE Ethernet networks. This article mainly introduces the application field and working principle of PD69104B1ILQ-TR.

Application Field

PD69104B1ILQ-TR is mainly used to supply power to Ethernet-compatible devices (PD) and support the industry standards such IEEE 802.3af, 802.3at, and 802.3bt. This IC offers a range of features that significantly facilitate the design process and reduce the overall system costs. As a result, it\'s particularly suitable for being used in network industry, like in IP cameras, wireless access points, phones, and VoIP systems. In addition, this IC is also used in Industrial IoT and Automation products, such as in CNC machines, robotics, and automated systems, as well as energy-driven devices like cooling turbines or pumps. Other related applications that this IC works well with include, 3C products and intelligent vehicles, like smart cars and trucks.

Working Principle

PD69104B1ILQ-TR performs the essential functions for being a PoE PSE controller. It integrates the main components for a professional PoE solution on a single chip, thus, simplifying the design of PoE Adapter and supports the transmission of higher power over Ethernet cables, from 30 W to 75 W. This chip also supports detection, classification and protection of the connected PDs. The PD69104B1ILQ-TR circuit contains two main operating modes: closed loop current regulation mode and open loop Q-curve current regulation mode. In closed loop mode, this controller can allow a precise output voltage of the PSE by matching the voltage feedback loop with real-time control and compensation for all the external control loop factors. Meanwhile, in open loop mode, this controller performs open loop current control by providing true PWM control of the current and voltage output to accommodate changes in the external system.

Conclusion

PD69104B1ILQ-TR is a controller IC of Power over Ethernet (PoE) and it\'s commonly used in network equipment, digital cameras, IP clocks, wireless access points, and other devices. This article has discussed its application field as well as its working principle. It offers closed loop current regulation mode and open loop Q-curve current regulation mode to regulate the precise output voltage of the PSE, thus, enhancing the efficiency of power transmission over the Ethernet cables.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description