TPS59611EVM-622

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The TPS59611EVM-622 is an evaluation board made by Texas Instruments for power conversion applications relevant to DC/DC and AC/DC (off-line) switching mode power supply (SMPS). This evaluation board enables the users to adapt their power solutions to different supply voltages while achieving high efficiency ratings and low electromagnetic interferences (EMI). The system is commonly used as reference designs in applications such as professional and consumer electronics, broadcast systems, automotive, wired communication, and renewable energy.

Working Principle

The system is based around two ICs, the TPS59611EVM controller and the TPS543020 synchronous switching regulator. They provide a maximum efficiency up to 90% and a switching frequency of 2 MHz. All the components of the TPS59611EVM-622 evaluation board are powered from 12 V input source. The high-side MOSFET is turned on by the controller to supply the required voltage at the output while the low-side MOSFET is used for the inductor current sensing purpose. The controller also provides a comprehensive protection system to guard against over-current and over-voltage conditions.

The TPS59611EVM-622 evaluation board is ideal for high efficiency and low EMI applications requiring up to 12 V output and current up to 2 A. It features a wide input voltage range of 6V to 16V and operates with both DC input (battery) and AC input (rectifier) sources. The key components in the TPS59611EVM-622 system are a synchronous switching regulator, on-board power supplies, switching MOSFETs, power MOSFETs, DC/DC controller, fault protectors, voltage controllers, and other needed components as required by the application.

The TPS543020 and TEN12H60S switching regulator support a wide range of input and output voltages, as well as supply currents up to 2A. The controller comes with integrated soft start, over current protection, and adjustable over-voltage protection. The system also offers an LED indicator which allows monitoring of the system operations. It also has programmable under-voltage lockout(UVLO). The system delivers excellent transient performance with fast load transients and input step-down transients of less than 1 ms.

The TPS59611EVM-622 evaluation board also offers an efficient thermal design that features on-board aluminum finned heat sinks. It also utilizes two tin-plated copper traces for the power ground plane on the printed circuit board (PCB). This arrangement helps to minimize the electrical noise in the switching converter and also offers superior thermal conduction.

In summary, the TPS59611EVM-622 evaluation board provides an efficient, fast, and noise-free power solution for DC/DC and AC/DC (off-line) SMPS applications. With its multiple protection features, wide operating input voltage range, and adjustable output voltage, the TPS59611EVM-622 provides a reliable power solution for various applications.

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