SLASEC8B February 2017 – January 2019 PGA460-Q1
Leakage inductance is caused when magnetic flux is not completely coupled between windings in a transformer. Magnetic saturation of a transformer core can be caused by excessive primary voltage, operation at too low of a frequency, by the presence of a DC current in any of the windings, or a combination of these causes. The PGA460-Q1 device can limit the primary-side driver current of the transformer internally from 50 to 500 mA. The center-tap voltage is typically referenced to the VPWR voltage. However, if the VPWR voltage is too high of a voltage on the center tap of the primary side, then the voltage must be down-regulated. If the VPWR is too low, then the voltage must be up-regulated.