TPS53667EVM-769

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TPS53667EVM-769 is an evaluation board designed to demonstrate the performance of Texas Instruments’ TPS53667 Stand-Alone controller for high performance DC/DC, AC/DC, off-line switcher applications. The EVM works with a variety of voltage and current input sources, allowing it to be used in a wide range of applications ranging from low-power stand-alone applications to high-performance multi-port and multi-rail applications. This article will discuss the evaluation board’s application field and working principle.

TPS53667EVM-769 is designed primarily for DC/DC and AC/DC (off-line) SMPS applications. In these applications, a high performance controller, such as the TPS53667, is required to provide efficient regulation of an input voltage, while providing dynamic response for a range of output voltages. The TPS53667 contains an onboard power MOSFET, eliminating the need for additional components to drive the power stage. This reduces cost and provides a high level of performance.

In addition to DC/DC and AC/DC applications, the evaluation board is also well-suited for use in multi-rail power systems. The TPS53667 provides improved dynamic performance, enabling the multi-rail application to meet stringent requirements such as load transient response and voltage accuracy. The integrated solutions also provide low-cost and low-power operation, while still maintaining sufficient response for these dynamic systems.

The TPS53667EVM-769 evaluation board comprises of a 20V/30A efficiency power supply module, a 100V/1A, 0.5A, 0.25A, 20V/1A reference power module, and a 5V/1A release power module. The power supply module provides a dual range adjustable output voltage, which can be controlled remotely via TTL. The other modules are a signal conditioning circuit, an isolator circuit, and a load test with power monitoring capability.

The board was designed using a highly efficient synchronous buck power stage with phase shift modulated inrush current enable and disable. This topology is ideal for high performance applications with very fast transient response from 0.25% to 100% of the output voltage within a very short time. The board also features a simple loop compensation circuitry that allows for easy adjustment of the output voltage and minimizes the output voltage ripple in the transition region, enabling a more accurate and stable operation.

Furthermore, the evaluation board was designed with protection features in order to provide a safer operating environment. It features an overtemperature protection circuit, over-voltage protection, and a current limit circuit. These protection features ensure that the evaluation board remains safe to operate in a wide range of applications.

The TPS53667EVM-769 evaluation board is a powerful, flexible solution for DC/DC and AC/DC (off-line) SMPS applications. It has a high efficiency power stage, fast transient response, and numerous protection features to ensure a safe and reliable operation. The board is cost effective and is ideal for high performance applications, multi-rail power systems, and stand-alone applications. With its excellent features and robust design, the board is suitable for a wide range of applications, ranging from low-power stand-alone applications to multi-port and multi-rail applications.

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