CS1600_1006 Datasheet, PDF (13/18 Pages) Cirrus Logic – Low-cost PFC Controller for Electronic Ballasts

output capacitance needed is calculated as:
C_out = -₂---_π-----_×-----₄---₅---¹--_×-¹----⁵⁴---₆---₀-----_×-----₄---₀-- = 22.1μF
CS1600
The voltage rating on the capacitor needs to account for the
operation of the device before it hits the overvoltage protection
threshold. This is typically 105% of nominal value, which is
483 V. With the ripple voltage factored in, 22 μF of
capacitance rated at 500 V would suffice for this application.
DS904A6
13