Texas Instruments TPS7H4002EVM-CVAL, Руководство пользователя

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4.4 Transient Response to Positive/Negative Load Step (0 A to 3A to 0A)
• Configure e-load to switch between 0 A and 3 A at a rate of 1 A/µs.
• On the oscilloscope, display CH2 (VOUT) [AC coupled, 50 mV/div] and CH3 (Output Current Probe) [1 A/div,
trigger rising edge ≈ 120 mA] with 20 µs/div.
Figure 4-4 shows the response to this load step to be about 50mV, or 2%.
Figure 4-4. Transient Response to Load Step 0 A to 3 A at 1 A/µs
• Change the trigger on CH3 to falling edge to capture the transient response of VOUT to negative current step
from 3 A to 0 A as shown in Figure 4-5 .
Again, transient deviation is approximately 50 mV, ignoring peak envelope, or 2%.
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8 TPS7H4002EVM-CVAL Evaluation Module SLVUBI1 – MAY 2021
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