TPS2384PAPR

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PMIC - Power Over Ethernet (PoE) Controllers

Ethernet Power over Ethernet (PoE) controllers are devices that provide direct current (DC) power over an existing Ethernet cable. This eliminates the need for additional power cables or outlets, allowing power to be delivered over long distances. TPS2384PAPR is one of the most advanced PoE controllers with features to simplify system design and reduce overall power consumption. This article will discuss the application field of this device and its working principles.

Application field

The TPS2384PAPR is ideal for powering a wide range of devices, including security cameras, routers, switches, access points, wireless APs, and VoIP phones. It is an IEEE 802.3 compliant PoE controller that supports the delivery of power up to 30 watts of power across four Ethernet ports. This device supports both Type 1 (mode A and B) and Type 2 (mode 4) PoE operations, enabling it to deliver power over twisted-pair copper Ethernet cable for up to 100 megabits per second (Mbps) transmission speeds. It also supports the IEEE 802.3at Plus standard, allowing it to deliver power over all four Ethernet ports up to 60 watts in total. This makes it suitable for powering a variety of devices that require high power output.

Working Principle

The TPS2384PAPR operates by converting AC power (as received from the power source) into DC power before it is transferred and efficiently distributed to the powered device. In order to power the receiver, the controller needs to detect whether or not it is present on the same Ethernet cable. This is done by sending a voltage to the receiver, which then responds with a signal. Once the presence of the receiver has been detected, the controller can then commence power delivery. The power is delivered by the controller, and the receiver receives it through the two dedicated power pins. The TPS2384PAPR controller implements an in-line power supply that can power the device directly from the PoE port, eliminating the need for a separate power supply.

Conclusion

The TPS2384PAPR is an advanced PoE controller that make it easier for systems designers to deliver high-power devices over Ethernet cables. It supports up to 30 watts of power on Type 1 (mode A and B) and Type 2 (mode 4) operations and up to 60 watts when using the IEEE 802.3at Plus standard. In addition, its in-line power supply allows it to directly power the device from the PoE port, saving time and cost. With these features, the TPS2384PAPR is ideal for powering a wide range of high-power devices in various applications.

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