A venture in retrotronics
The pt1-ABXS002A3-25V is a robust and stable power supply providing an output voltage adjustable from 16V to 34V, at a maximum of 65W. The module is built around the (non-isolated) ABB ABXS002A3X41-SRZ boost converter.
The design of this power supply has been optimized to provide the best dynamic output response at ~25V, using the Tunable Loop feature of the converter. For deployment, ideally an additional capitance of 20μF in total should be placed (i.e. distributed) at the power consumers' ends.
The input voltage can be anywhere between 8V and 16V (typically 12V), supplied through the screw connector.
The module features an on-board fuse, in addition to the converter's output over-current protection. The converter is also protected against over temperature.
The converter will automatically recover from hick-up mode once the output current is brought back into its specified range. When the converter goes into thermal shutdown, it will wait to cool before attempting to restart.
Some translator logic has been added to the circuit to provide a (positive) logic ENABLE (i.e. remote on/off) signal (e.g. 3.3/5V).
The converter's PGOOD (Power Good) signal is available through a separate connector. To use it, connect this (open-drain) line to a logic high (5V max) using a 10kΩ pull-up resistor.