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VIPER22ASTR-E

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21
VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E Operation pictures
Doc ID 12050 Rev 2 13/21
5 Operation pictures
Figure 9. Rise and fall time
Figure 10. Start-up V
DD
current
Figure 11. Restart duty-cycle
I
D
V
DS
90%
10%
t
fv
t
rv
t
t
L D
300V
C
FB
VDD DRAIN
SOURCE
CONTROL
VIPer22A
C << Coss
V
DD
V
DDhyst
V
DDoff
V
DDon
I
DD0
I
DDch
100 V≤ V
DS
≤ 400 V
F
sw
= 0 kHz
I
DD
100V
10
F
FB
VDD DRAIN
SOURCE
CONTROL
VIPer22A
2V
t
V
DD
V
DDoff
V
DDon
t
CH
t
ST
D
RST
t
ST
t
ST
t
CH
+
-------------------------- -=
Operation pictures VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E
14/21 Doc ID 12050 Rev 2
Figure 12. Peak drain current vs feedback current
Figure 13. Thermal shutdown
I
FB
4mH
100V
100V
18V
FB
VDD DRAIN
SOURCE
CONTROL
VIPer22A
47nF
G
ID
I
Dpeak
Δ
I
FB
Δ
------------------------–=
I
D
I
Dpeak
t
1/F
OSC
I
FB
I
Dpeak
I
Dlim
I
FB
I
FBsd
R
FB
⋅
V
FB
The drain current limitation is
obtained for VFB = 0 V, and a
negative current is drawn from
the FB pin. See the Application
section for further details.
0
I
FBsd
VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E Operation pictures
Doc ID 12050 Rev 2 15/21
Figure 14. Switching frequency vs temperature
Figure 15. Current limitation vs temperature
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21

VIPER22ASTR-E

Mfr. #:
Buy VIPER22ASTR-E
Manufacturer:
STMicroelectronics
Description:
AC/DC Converters Lo Pwr Offline SMPS Primary Switcher
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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