TPS62148EVM-034

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TPS62148EVM-034 is a highly efficient, high density, synchronous step-down DC-DC converter evaluation board. It is designed to serve novel applications in the field of low voltage single-phase AC/DC and DC/DC offline power supplies. This EVM is optimized to provide the best combination of performance and value for a wide range of solutions such as single phase AC/DC adapters, open-loop or closed-loop point-of-load converters, or as an AC/DC primary active rectifier.The basic features of TPS62148EVM-034 include an integrated 23-V power supply, voltage feedback circuits, and solid-state protection devices. A key feature is the incorporation of an active current-mode controller, which is used to regulate the output voltage and protect against overload and short-circuit conditions. Additionally, this board has an input voltage range of 4.5V to 25V and a wideoutput voltage range of 0.6V to 21V with an adjustable output current of 1A to 10A.The TPS62148EVM-034 operates in one of three modes depending on the input voltage: 1) discontinuous Conduction Mode (DCM) at low input voltages; 2) boundary Conduction Mode (BCM) with Cross Regulation (XR) at medium input voltages; and 3) Continuous Conduction Mode (CCM) with Cross Regulation (XR) at high input voltages. In each case, the operating mode can be programmed through external compensation network or through AC signal injection.The maximum operating frequency of the TPS62148EVM-034 is adjustable over a wide range, allowing for faster system response, better dynamic performance, and higher switching frequencies. Additionally, the efficiency of the converters is improved with the combination of diode emulation, window comparator, and primary-side synchronous rectification. The integrated power supply helps to maintain the efficiency even at light and no-load conditions, thus leading to higher overall efficiency for the system.In terms of safety, the TPS62148EVM-034 features a set of over-voltage, over-temperature, and short-circuit protection. This board also has supplemental circuitry to ensure that the current feedback signals are properly adjusted to the voltage feedback signals. Further, the output of the board can be monitored through its voltage sense pins, allowing for remote monitoring of the output voltage.In conclusion, the TPS62148EVM-034 is an ideal solution for low voltage single-phase AC/DC and DC/DC offline power supplies. The integrated active current-mode controller allows for better regulation of the output voltage, while higher efficiency is achieved through diode emulation, window comparator, and primary-side synchronous rectification. Moreover, the board is equipped with a suite of protection features for improved safety.

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