Vicor recommends a 4-layer PCB with a solid ground plane, and thermal vias under the module to dissipate heat. A thermal interface material (TIM) should be used between the module and the heat sink. Vicor provides a reference design and layout guidelines in their application notes.
To ensure reliable start-up and shutdown, Vicor recommends a soft-start circuit to limit inrush current, and a voltage supervisor to monitor the output voltage. Additionally, a slow-turn-on and slow-turn-off of the input voltage can help prevent damage to the converter.
The maximum allowable capacitance on the output of the V28B24T150BL is 2200uF. Exceeding this value can cause instability and affect the converter's performance. Vicor recommends using a capacitance value that is less than or equal to 2200uF to ensure stable operation.
To protect the converter from input voltage transients and surges, Vicor recommends using a TVS (Transient Voltage Suppressor) diode or a surge protector device at the input of the converter. This can help absorb or clamp voltage spikes and prevent damage to the converter.
The recommended input fuse rating for the V28B24T150BL is 5A to 10A, depending on the specific application and input voltage. Vicor recommends using a fuse with a slow-blow characteristic to prevent nuisance tripping.
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V28B24T150BL Overview
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