SC4150
POWER MANAGEMENT
Typical Characteristics (Cont.)
The following set of snapshots demonstrates effectiveness of SC4250 circuit in the case where connection to the
live back plane is very “bouncy”, which is usually the situation with manual replacements of the power cards.
For all figures, Ch1: VDRAIN; Ch2: VGATE; Ch3: PWRGD (referenced to VDRAIN); Ch4: VR4 (Input current)
Figure 7. Short circuit hiccup.
Figure 8. Inrush limit.
Figure 9. Inrush limit.
Figure 10. Inrush limit.
2004 Semtech Corp.
9
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