TPS1H100-Q1
ZHCSDD8D –OCTOBER 2014–REVISED DECEMBER 2019
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8.2.3 Application Curves
Figure 48 shows a test example of initial short-circuit inrush-current limit. Test conditions: VS = 13.5 V, input is
from low to high, load is short-to-GND or with a 470-µF capacitive load, external current limit is 2 A. CH1 is the
output current. CH3 is the input step.
Figure 49 shows a test example of a hard short-circuit inrush-current limit. Test conditions: VS= 13.5 V, input is
high, load is 5 µH + 100 mΩ, external current limit is 1 A. A short to GND suddenly happens.
Input Step
Fast loop response
1.8 A inrush
2 A inrush
Closed loop response
1 A inrush
Figure 49. Hard Short-to-GND Waveform
Figure 48. Initial Short-to-GND Waveform
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