How does Over Voltage Protection (OVP) work; does it track the trim?
SynQor’s OVP protection is fixed and does not track the output voltage when using the trim function. Customers should use care when trimming the converter to insure the OVP is not activated during transient conditions, or when series diodes or FETs are used on the converter’s output. On SynQor’s first generation half brick converters containing HNA in the part number, the OVP protection is measured across the sense lines. Care should be taken to insure that the output pins do not become disconnected from the sense lines. If the output pins become disconnected, and there is some capacitance across the sense lines, damage could occur to the converter’s output stage. This could happen if the output pins are not properly soldered, or if MOSFET’s are placed in series with the output. On SynQor’s new Kilo, Mega, Giga, and Tera half bricks, as well as the QNA/QGA quarter bricks, the OVP sense point is located across the output pins which avoids this condition.
