VIPER15 STMicroelectronics, VIPER15 Datasheet - Page 18

• Manufacturer Part Number: VIPER15
• Description: VIPerPlus family: quasi-resonant high performance off line high voltage converter
• Manufacturer: STMicroelectronics

Operation description
18/40
Figure 24. Timing diagram: Start-up phase and soft start (case 1)
Figure 25. Timing diagram: Start-up phase and soft start (case 2)
I
DRAIN
I
V
V
DRAIN
V
V
V
V
V
FBolp
I
OUT
V
FBolp
FBlin
I
FBlin
OUT
Dlim
Dlim
FB
FB
Regulated value
Regulated value
t
SU
t
SS
t
SU
(start up phase)
t
(soft start)
SS
(start up phase)
(soft start)
Doc ID 15455 Rev 5
T
OLP-delay
VIPER15
t
t
t
t
t
t