Due to the high charge pump frequency, fast diodes are required. Connecting the cold side of the bulk capacitor
(C8) to VS instead of GND the average current in the external diodes during operation is less than 10 mA (with
R4 = 100 W); at startup (when VS is provided to the IC) is less than 200 mA while the reverse voltage is about
10 V in all conditions. 1N4148 diodes withstand about 200 mA DC (1 A peak), and the maximum reverse voltage
is 75 V, so they should fit for the majority of applications.

Hallo zusammen.

Kann mir jmd. bitte erklären, was ein bulk capacitor ist?
Vielen Dank im voraus!

Liebe Grüße,
Markus