L4984D STMicroelectronics, L4984D Datasheet - Page 20

• Manufacturer Part Number: L4984D
• Description: Power Factor Correction ICs Current Mode PFC CCM Line Modulated Bi
• Manufacturer: STMicroelectronics

Specifications of L4984D

• Rohs: yes

Application information
20/35
Figure 29. Line-modulated fixed-off-time-controlled boost PFC: input current
The waveform relevant to Vin = 264 V
largest portion of the line cycle where boost inductor operates in discontinuous mode
(DCM). However, its harmonic content, shown in
issue for EMC compliance. Almost all the distortion is concentrated in the third harmonic,
whose amplitude is 17% of the fundamental one, while the THD is 17.7%.
harmonic contents
Doc ID 023489 Rev 3
ac
Harmonic order (n)
shows the highest degree of distortion and the
Figure 29
, is still so low that it is not an
Vin = 264Vac
THD = 17.7%
AM13245v1
L4984