Datasheet

UG-320 Evaluation Board User Guide
Rev. A | Page 18 of 48
10180-018
Figure 19. Startup at 350 V DC, Load (1 A/µs Slew Rate)
Yellow Trace: Phase 1 Drain Voltage on Q2, 100 V/div, 10 ms/div
Red Trace: Phase 2 Drain Voltage on Q4, 100 V/div, 10 ms/div
Blue Trace: Load Current, 10 A/div, 10 ms/div Cursor Showing Phase 2
Enabled at 15 A
10180-019
Figure 20. Startup at 385 V DC, Load (1 A/µs Slew Rate)
Yellow Trace: Phase 1 Drain Voltage on Q2, 100 V/div, 10 ms/div
Red Trace: Phase 2 Drain Voltage on Q4, 100 V/div, 10 ms/div
Blue Trace: Load Current, 10 A/div,
10 ms/div Cursor Showing Phase 2 Enabled at 15 A
10180-020
Figure 21. Synchronous Rectifier During Startup at No Load
Green Trace: Output Voltage, 2 V/div, 20 ms/div
Blue Trace: Phase 1 Synchronous Rectifier (OUTC), 5 V/div, 20 ms/div
Red Trace: Phase 2 Synchronous Rectifier (SR1), 5 V/div, 20 ms/div
Yellow Trace: Load Current, 10 A/div, 20 ms/div
10180-021
Figure 22. Synchronous Rectifier During Startup at 25 A Load
Green Trace: Output Voltage, 2 V/div, 20 ms/div
Blue Trace: Phase 1 Synchronous Rectifier (OUTC), 5 V/div, 20 ms/div
Red Trace: Phase 2 Synchronous Rectifier (SR1)
Turning On at 15 A, 5 V/div, 20 ms/div
Yellow Trace: Load Current, 10 A/div, 20 ms/div