STEVAL-ISV018V1

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STEVAL-ISV018V1 is an evaluation board for off-line AC/DC power supplies. This board features a step-down DC/DC converter with an attached output voltage P-FET pass element. It is designed for use with a wide input voltage range and offers high power efficiency with low standby power.

The board features an integrated boost rectification bridge and compatible driver circuit for the P-FET pass element, allowing for an efficient design and double sided PCB layout. It is ideal for AC/DC adapter applications, and for use in power supplies with minimum standby power consumption.

The board utilizes STMicroelectronics’ TDE1008 Stage 1 controller for DC/DC conversion and P-FET pass element control. The IC controls and manages the output voltage with high efficiency, while also providing protection against short circuits, overvoltage and thermal shutdown.

The board also features an LM2931 low dropout regulator and associated driver components, ensuring that the power supply is within regulation even at a low input voltage. The board includes latching protection against fault conditions, and can withstand a continuous output short circuit.

The key features of the STEVAL-ISV018V1 are its low power consumption, efficient design and wide input voltage range. The board is designed to provide low standby power at no load, is highly efficient due to its integrated boost rectification bridge, and has an input voltage range of 4.5V to 24V, making it highly suitable for use in AC/DC adapter applications.

The board also offers protection against thermal shutdown, overload and short circuit, ensuring the safety of users and equipment. Its multiple protections can be enabled/disabled via a single pin, making it easy to control settings. The board also integrates a test points for monitoring input and output voltages and currents.

The board provides a user friendly platform for evaluating applications based on the TDE1008 Stage 1 controller and P-FET pass element. Ideal applications for this board are AC/DC adapter designs, as it features an integrated boost rectification bridge and has an input voltage range of 4.5V to 24V.

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