Chapter 5

For proper operation of the EVM, one 48-V power supply, and a voltage meter or an oscilloscope are required.

Refer to the setup diagram in Figure 5–1 and follow these steps for hot plug testing:

1)Verify that the power-supply voltage is set at 48 V. Make sure the supply has the capability to provide the current loads need. Turn off the supply.

2)Connect a meter or oscilloscope to monitor the voltages from Vout+ (pin 1 of J1) to Vout– (pin 2 of J1) on the SLVP184 board.

3)Plug the supply into the interface card; connect the supply from IN1 to ground. Then turn on the power supply. Check the voltage from VIN1 to GND, which should be about 48 V.

4)Plug the hot-swap board (SLVP184) into the interface board (SLVP155). The key installed between pins 1 and 2 of the edge connector insures that the board can only be inserted in the correct direction.

5)Test points or headers are provided for oscilloscope probes and/or multi- meters. Read the voltage from the multimeters connecting from Vout+ to Vout– on SLVP184. The value of the meter should be about 48 V. Other- wise, the board may have problems or the testing may not be correct.

6)Unplug the SLVP184 board from the interface card.

More evaluations such as adding loads to the output rails, can be performed by following procedures similar to those presented above.

Setup of the EVM

5-1

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Texas Instruments TPS2330 manual Setup of the EVM
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TPS2330 specifications

Texas Instruments (TI) has established itself as a leader in developing advanced power management solutions. Among its array of products, the TPS2330 stands out as a highly efficient power-path controller designed for various applications, including telecommunications, networking, and embedded systems. This device is a popular choice for engineers seeking an effective way to manage power availability from primary and backup sources.

One of the defining features of the TPS2330 is its dual input control. The controller is designed to manage two independent power sources, providing a seamless transition between them. This capability is critical in applications where reliability is paramount, as it allows for a primary power source (like an adapter) to be complemented by a secondary source (like a battery). The TPS2330 ensures that the load is always powered, even if the primary source fails, allowing for uninterrupted operation.

The TPS2330 also incorporates a sophisticated power-path management technology, which optimizes the flow of power to the load while minimizing losses. This technology enables efficient use of the connected power sources, ensuring that the highest priority source is utilized while maintaining flexibility. The device supports hot-swappable inputs, meaning users can connect or disconnect power sources without interrupting the operation of the circuit.

Another significant characteristic of the TPS2330 is its low quiescent current, which is essential for battery-powered applications. The device's efficiency minimizes power consumption during standby mode, extending battery life significantly. This feature is particularly valuable in IoT devices and portable electronics where power conservation is crucial.

Furthermore, the TPS2330 is built with a robust set of protections to enhance reliability. It has built-in overvoltage, undervoltage, and overcurrent protection, which safeguard connected devices from potential damage. These features are vital for preventing failures in critical applications, helping designers build more resilient systems.

In terms of ease of use, the TPS2330 has a simple design with straightforward external component requirements. This simplicity reduces development time, allowing engineers to quickly integrate the controller into their designs. The device also comes with a wide operating voltage range, making it versatile enough to meet various application needs.

Ultimately, Texas Instruments' TPS2330 is a powerful solution for managing dual power sources with reliability, efficiency, and protection once considered essential in modern electronic design. Its innovative features and technologies make it a go-to choice for engineers looking to enhance their power management designs effectively.
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