SNOSDC0A October 2020 – December 2020 LM7310
The slew rate (SR) needed to achieve the desired output rise time can be calculated as:
The CdVdt needed to achieve this slew rate can be calculated as:
Choose the nearest standard capacitor value as 3300 pF.
For this slew rate, the inrush current can be calculated as:
The average power dissipation inside the part during inrush can be calculated as:
The power dissipation is below the allowed limit for a successful start-up without hitting thermal shut-down within the target rise time as shown in the Figure 8-3.