TPS2104D

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The TPS2104D is a current-limited unit for advanced secondary-side power distribution applications. The device not only provides over-current protection but also implements the advanced power distribution topologies necessary for today\'s applications. It offers a variety of features to ensure reliable and flexible operation, such as ideal diodes, load response control, load enabling/disabling, and independent load current and voltage monitoring. This article will discuss the application field and working principle of TPS2104D.

Application Field of TPS2104D

The TPS2104D is suitable for advanced secondary-side power distribution applications, such as network switches, power over Ethernet (PoE) switches, routers, set-top boxes, and displays. Its features make it ideal for multi-rail applications that require multiple currents and multiple voltage levels.

It can be used to implement advanced power distribution topologies such as rail-to-rail sequencing, sequencing with standby, rail selectable current-sharing, boost-converter sequencing, automatic rail shutdown, input over-voltage protection, and boost-converter over-current protection.

It also provides an array of over-current protection features such as load Response Control (LRC), load enable/disable, independent current and voltage monitoring, as well as an under-voltage lockout.

Working Principle of TPS2104D

The TPS2104D is based on the principles of OR controllers, ideal diodes, and current-limited output stages. It can be used to implement advanced power distribution topologies such as rail-to-rail sequencing, sequencing with standby, input over-voltage protection, and boost-converter over-current protection.

The device also provides load response control (LRC), which works as follows: When the load current increases, the device reduces its output voltage, reducing the current. If the load current continues to increase, the device shuts down its output.

It also offers load enable/disable, which works as follows: When the load is enabled, the device ramps up the output voltage, increasing the load current. When the load is disabled, the device shuts down the output.

The TPS2104D is also capable of independent load current and voltage monitoring, which works as follows: The device monitors the voltage and current of each load and takes appropriate action if the load current or voltage exceeds a predefined threshold.

Finally, the device provides an under-voltage lockout (UVLO) feature, which works as follows: When the input voltage is below the set UVLO threshold, the device shuts down its output.

The TPS2104D is an advanced power distribution device that offers a variety of features for reliable and flexible operation. It is suitable for advanced secondary-side power distribution applications and can be used to implement advanced power distribution topologies. It is based on the principles of OR controllers, ideal diodes, and current-limited output stages and offers a variety of features such as load response control, load enable/disable, independent current and voltage monitoring, and under-voltage lockout.

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