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VIPER100-E
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P29
5 Op
eration Descr
iption
VI
Per
100-E
16/29
Figure
1
1.
Behavio
u
r of the high voltage current source at st
art-u
p
Figure
12.
S
t
a
rt-Up
W
a
veforms
Ref.
UNDE
RVO
L
T
A
GE
LOCK OUT LOGIC
15 m
A
1 mA
3 mA
2 mA
15 m
A
VDD
DRAIN
SOURC
E
VIP
er1
00
A
uxili
ary prim
ar
y
wind
ing
VD
D
t
V
DDof
f
VDDon
Star
t up d
uty cycl
e ~ 12
%
C
VDD
FC00100
VIP
er
100-
E
5 Op
eration Descr
iption
17/29
Figure
13.
Over-tem
perature Pr
otection
S
C
101 91
T
J
T
ts
d
-T
h
yst
T
ts
c
V
dd
V
dd
on
V
dd
off
I
d
V
co
m
p
t
t
t
t
5 Op
eration Descr
iption
VI
Per
100-E
18/29
Figure
14.
Oscillator
Rt
C
t
OS
C
VDD
~360
Ω
CLK
FC0005
0
C
t
Fs
w
40kH
z
15nF
22nF
Forbidden are
a
Forbidden
ar
e
a
Ct(nF
)
=
Fsw(
kHz)
880
1
2
3
5
10
20
30
50
30
50
100
200
300
500
1,000
Rt
(k
Ω
)
Frequen
cy (kHz)
Oscillator frequency vs
Rt and C
t
Ct
= 1
.
5 nF
Ct =
2.7 nF
Ct = 4.7 nF
Ct = 10 nF
FC
0003
0
FC00
030
For
R
t
> 1.2k
Ω
and C
t
≤
40KHz
F
SW
2.3
R
t
C
t
--------
--
-1
550
R
t
150
–
--------
----
-------
-
–
⋅
=
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P29
VIPER100-E
Mfr. #:
Buy VIPER100-E
Manufacturer:
STMicroelectronics
Description:
AC/DC Converters 620V 3A SMPS
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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Ups
TNT
EMS
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