전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

VIPER25LD 데이터시트(PDF) 27 Page - STMicroelectronics

부품명 VIPER25LD
상세설명  Off-line high voltage converters
PDF  40 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VIPER25LD 데이터시트(HTML) 27 Page - STMicroelectronics

Back Button VIPER25LD Datasheet HTML 23Page - STMicroelectronics VIPER25LD Datasheet HTML 24Page - STMicroelectronics VIPER25LD Datasheet HTML 25Page - STMicroelectronics VIPER25LD Datasheet HTML 26Page - STMicroelectronics VIPER25LD Datasheet HTML 27Page - STMicroelectronics VIPER25LD Datasheet HTML 28Page - STMicroelectronics VIPER25LD Datasheet HTML 29Page - STMicroelectronics VIPER25LD Datasheet HTML 30Page - STMicroelectronics VIPER25LD Datasheet HTML 31Page - STMicroelectronics Next Button
Zoom Inzoom in Zoom Outzoom out
 27 / 40 page
background image
VIPER25
Operation description
Doc ID 15585 Rev 4
27/40
Equation 6
Where:
●
VOVP is the OVP threshold (see Table 8 on page 8)
●
VOUT OVP is the converter output voltage value to activate the OVP (set by designer)
designer
●
NAUX is the auxiliary winding turns
●
NSEC is the secondary winding turns
●
VDSEC is the secondary diode forward voltage
●
VDAUX is the auxiliary diode forward voltage
●
ROVP together RLIM make the output voltage divider
Than, fixed RLIM, according to the desired IDlim, the ROVP can be calculating by:
Equation 7
The resistor values will be such that the current sourced and sunk by the ZCD pin be within
the rated capability of the internal clamp.
Figure 33.
OVP timing diagram
k
OVP
R
LIM
R
LIM
R
OVP
+
----------------------------------
=
R
OVP
R
LIM
1k
OVP
–
k
OVP
-----------------------
×
=
t
VAUX
VOVP
t
t
t
STROBE
t
COUNTER
RESET
t
COUNTER
STATUS
t
0
ZCD
2 µs
0.5 µs
OVP
FAULT
0
0
0
0 →1
1 →2
2 →0
0 →1
1 →2
2 →3
3 →4
0
E
R
U
L
I
A
F
P
O
O
L
K
C
A
B
D
E
E
F
E
C
N
A
B
R
U
T
S
I
D
Y
R
A
R
O
P
M
E
T
N
O
I
T
A
R
E
P
O
L
A
M
R
O
N
t
t
t
t
STROBE
t
COUNTER
RESET
t
COUNTER
STATUS
t
0
2 µs
0.5 µs
OVP
FAULT
0
0
0
0 →1
1 →2
2 →0
0 →1
1 →2
2 →3
3 →4
0
E
R
U
L
I
A
F
P
O
O
L
K
C
A
B
D
E
E
F
E
C
N
A
B
R
U
T
S
I
D
Y
R
A
R
O
P
M
E
T
N
O
I
T
A
R
E
P
O
L
A
M
R
O
N
t



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com