TIDT293 October 2022
The high-level pulse width adjustment is made by turning the potentiometer R47. Jumpers J12 and J13 can be installed to set the range of pulse-width adjustment. Pulse widths range from a minimum of 11 µs and maximum of 13 ms.
The following scope plot is the minimum pulse-width adjustment for the high-level step. The load step board is set up for a 1-A to 5-A load transient for a 5-V output. The results in the following waveform use a PSMN008-75B MOSFET in the 125-A, 50-V variant.
The following scope plot is the maximum pulse-width adjustments for the high-level step. The load step board is set up for a 1-A to 4-A load transient for a 5-V output. The results in the following image use a PSMN008-75B MOSFET in the 125-A, 50-V variant.