Figure 3-78 to Figure 3-62 show the UVLO, OVLO, and OCP thresholds of the front-end
protection circuit.
Figure 3-58 Front-End Protection, UVLO Rising Enable, 5V
Pre-Regulator Buck Output No Load (FEP UVLO Enable Threshold ≈ 6.0V; 5V
Pre-Regulator UVLO Enable Threshold ≈ 6.5V) Figure 3-60 Front-End Protection, OVLO Rising Disable, 5V
Pre-Regulator Buck Output Loaded at 5A Load (FEP OVLO Disable Threshold ≈
20.3V; 5V Pre-Regulator UVLO Disable Threshold ≈ 5.2V) Figure 3-62 Front-End Protection, OCP Threshold Test, 5V
Pre-Regulator Buck at 6VIN With the Load Progressively
Increasing; 100kΩ “TMR” Resistor Installed for this Test (FEP OCP Threshold
≈ 12.65A) Figure 3-59 Front-End Protection, UVLO Falling Disable, 5V
Pre-Regulator Buck Output Loaded at 5A Load (FEP UVLO Disable Threshold ≈
5.6V; 5V Pre-Regulator UVLO Disable Threshold ≈ 5.2V) Figure 3-61 Front-End Protection, OVLO Falling Enable, 5V
Pre-Regulator Buck Output Loaded at 5A Load (FEP OVLO Enable Threshold ≈
18.8V; 5V Pre-Regulator UVLO Enable Threshold ≈ 6.75V)