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ADP1046A 100Watt
Evaluation board
Figure 36 - Latching Under Voltage Protection (UVP threshold set to 9V)
caused by change in set point
Green trace: Output voltage
Yellow trace: Load current
B.
Over Voltage Protection (OVP): Figure 38 and Figure 39 show latching and hysteretic OVP respectively.
This test can be easily performed setting the VS3 regulation point beyond the OVP threshold. Another method how
an OVP flag can be tripped is by suddenly opening the control loop (open R10 or short R11 on the daughter card).
Hysteretic (enable after 1 sec) and latching (remain disabled, only PS_ON can re-enable) are the programmed
choices for the faults in the drop down menu provided in the GUI.
Figure 37 - Under Voltage Protection triggered due to shorted load.
Rev. 1.3 | Page 25 of 55
PRD1386
Green trace: Output voltage
Yellow trace: Load current
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