PD69104B2ILQ-TR

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PMIC (Power Management Integrated Circuit) PoE (Power Over Ethernet) controllers such as the PD69104B2ILQ-TR have been gaining popularity in industrial and consumer electronics applications. Understanding the interpretation of this PMIC and its application field and working principle are essential for anyone looking to harness the vast potential of PoE for their applications.

What is PoE?

Power over Ethernet (PoE) is a technology that allows Ethernet cables to transmit both power and data. It enables networked devices to receive both power and data over a single connection, eliminating the need for multiple cables and power sources to power the device. This greatly reduces the complexity, cost, and time required for deploying and maintaining networked devices.

The Field of Application

PoE controllers, such as the PD69104B2ILQ-TR, has been designed for consumer and industrial applications that require a low-power, high-frequency controller for PoE-powered devices. It is particularly useful for PoE-enabled products such as VoIP phones, Wi-Fi access points, IP cameras, laptops, industrial equipment and IoT (Internet of Things) devices.

The PD69104B2ILQ-TR +2.2V to +3.63V input voltage range makes it well-suited for embedded applications such as handsets, security cameras, access points, sensors and healthcare devices.

The Working Principle

The working principle of the PD69104B2ILQ-TR Power over Ethernet controller is based on the IEEE 802.3bt standard. It utilizes a 14.1 ns switch-mode pulse width modulation (PWM) controller circuit to regulate the power delivered to the load. A high-efficiency isolated DC-DC converter bridges the gap between the PoE source and load.

The PD69104B2ILQ-TR also integrates low-side power switches and an embedded current sense amplifier and voltage regulator circuit. As a result, it can accurately measure the current and temperature of the load, allowing for a more precise power delivery.

The embedded circuitry in the PD69104B2ILQ-TR also reduces component count, further simplifying the design process and enabling a low power solution for PoE applications.

Conclusion:

PoE controllers such as the PD69104B2ILQ-TR simplify the process of deploying and managing PoE-enabled devices and provide a low-cost solution for embedded and industrial applications. By understanding the field of application and working principle of the PD69104B2ILQ-TR, engineers can take full advantage of the various features of PoE technology to maximise the efficiency, reliability, and cost-effectiveness of their applications.

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