TPS84A20EVM-001

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The TPS84A20EVM-001 evaluation module is an off-line switch mode power supply (SMPS) board designed for the purpose of AC/DC and DC/DC applications. It consists of a single-chip switching regulator, which offers a monolithic low-noise and low-ripple solution for power conversion from an input AC voltage source to a regulated DC voltage. The system operates on a rectified mains ac input voltage of 88-264 Vac and provides a regulated and isolated 5V/3.3A output. It allows stable output voltage, low-noise, and high efficiency from a single-stage design.

The TPS84A20EVM-001 is based on the TPS84A20 device, a single-chip, 6V-50V, continuous-conduction mode (CCM) switched-mode power supply (SMPS) controller. The IC integrates a high-voltage Power MOSFET, an avalanche energy-rated MOSFET, a diode, and a precision reference voltage in a single package. It has an embedded oscillator that allows it to perform pulse-width modulation (PWM) without an external oscillator. It also supports a frequency modulation (FM) mode with the use of an external oscillator.

The board provides all the necessary components for the TPS84A20 device and integrates it into a compact printed-circuit board (PCB) custom-fit design. The board features an onboard synchronous buck controller, integrated input/output filtering, high-performance buck PWM control, a low component count, low EMI, and high efficiency. It comes with an integrated EMI filter on both the input and output to reduce system EMI.

The TPS84A20EVM-001 uses the pulse-width modulation (PWM) technique to vary the output voltage. In this technique, an oscillator provides the base clock frequency for the converter. The PWM signal is then used to control the ON-time of the switch, thereby regulating the output voltage. The board has comprehensive protection features, including protection from overvoltage, undervoltage lockout, cycle-by-cycle current limiting, and over-temperature protection.

The TPS84A20EVM-001 is an easy-to-use and well-designed evaluation module for power design engineers to evaluate the TPS84A20 device. The board enables the user to quickly evaluate the device performance, board layout, and other parameters with respect to their application. Additionally, it also provides helpful performance data and useful plots of efficiency curves, input and output ripple, temperature rise, etc. for the user\'s evaluation.

To conclude, the TPS84A20EVM-001 evaluation module is a compact, effective off-line switch mode power supply designed for AC/DC and DC/DC applications. It features a single-chip switching regulator, onboard synchronous buck controller, low-noise and low-ripple performance, low component count, integrated EMI filtering, and comprehensive protection features. The board also comes with helpful performance data and evaluation plots, making it an ideal solution for power design engineers.

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