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How are waveforms during TLD5542-1QV fast discharge phase?

How are waveforms during TLD5542-1QV fast discharge phase?

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250 sign-ins First comment on KBA 250 replies posted
‎Nov 25, 2021 05:12 AM
‎Nov 25, 2021 05:12 AM

The TLD5542-1QV has a fast discharge feature that allows to quickly discharge the output capacitor. During a fast discharge phase the ouput capacitor is getting discharged to the input capacitor and therefore causing a small reverse input current.

TLD5542-1 fast discharge.png

The figure below shows the switching pattern and waveforms during this fast discharge phase.

FD.png

Read more on fast discharge in the datasheet https://www.infineon.com/dgdl/Infineon-TLD5542-1QV-DataSheet-v01_10-EN.pdf?fileId=5546d4626fc1ce0b01... on pages 27 and 28.

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