Soft Start Simulation Results for TPS82150 Power Module
Results of soft start simulations for TPS82150 power module show that the rise time for output voltage slightly exceeds the expected soft start time due to voltage ramping up to 0.8V only. Different scenarios for input voltage and output current levels are explored, highlighting the impact on rise time for different output voltages.
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Presentation Transcript
TPS82150 Soft start Pspice simulation TI/BSR/MV/LC 8/22/2021
12Vin, 1.8V/1A, 470pF soft start time is around 220us which matches the equation. But 1.8Vout rise time is around 225us Soft start voltage only ramps up to 0.8V, after that Vout is not controlled by soft start time. So for 1.8Vout, 1.8V rise time is around 225us
12Vin, 5V/1A, 470pF soft start time is around 218us which matches the equation. But 5Vout rise time is around 360us Soft start voltage only ramps up to 0.8V, after that Vout is not controlled by soft start time. So for 5Vout, 5V rise time is around 360us
