SLUAAJ7 June 2022 UCC256402 , UCC256403 , UCC256404
- Abstract
- Trademarks
- 1UCC25640x Selection Guide
- 2UCC25640x Features Brief Overview
- 3UCC25640x Power Up Guidelines and Debugging Notes
- 4References
2.5.2 Soft Start Initial Voltage Programming
Figure 2-22 a) With Soft Start Initial Voltage (Vssinit) is Zero
Volts b) Vssinit not at 0 V- Figure 2-22 shows that, Vssinit voltage adjusts the maximum startup switching frequency. This helps to prevent the hard switching at the startup which is shown in Figure 2-23.
- The suggested range for the Vssinit would be 0 V to 1 V.
Figure 2-23 High
Side MOS Current Without Initial Voltage on LL/SS Pin 
Figure 2-24 High
Side MOS Current with 0.5 V Initial Voltage on LL/SS Pin