SNVS628H October 2009 – December 2019 LM5060
PRODUCTION DATA.
The OVP function will turn off the external N-Channel MOSFET if the OVP pin voltage is higher than the OVPTH threshold (typically 2 V). A resistor divider made up with R8 and R9, shown in Figure 20, sets the OVP threshold. An internal 9.6-µs timer filters the output of the over-voltage comparator to prevent noise from triggering an OVP event. An OVP event lasting longer than typically 9.6 µs will cause the GATE pin to be discharged with an 80 mA current sink and will cause the capacitor on the TIMER pin to be discharged.
If the OVP function is not needed, the OVP pin should be connected to GND. The OVP pin should not be left floating.