SLVSDF3F MARCH 2017 – JANUARY 2019 TPSM846C23
To control the inrush current required to charge the output capacitor bank during start up, the TPSM846C23 device implements a soft-start time. When the device is enabled, the feedback reference voltage, VREF, ramps from 0 V to the final level at a slew rate defined by the TON_RISE command. The specified rise times are defined by the slew rate required to ramp the reference voltage from 0 V to the final value at each given rise time.
The TPSM846C23 devices support several soft-start times from 1 ms to 100 ms, which are selected by the TON_RISE command.