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VIPER50A-22-E
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P27
P28-P30
P31-P31
5 Op
eration Descr
iption
VIPe
r50
A-
E/AS
P-E
16/31
Figure
1
1.
Behavio
ur of th
e high
vo
lt
age curr
ent source at st
art-up
Figure
12.
St
a
rt-Up W
a
veforms
Ref.
UNDE
RVO
LT
AGE
LOCK OUT LOGIC
15 m
A
1 mA
3 mA
2 mA
15 mA
VDD
DRAI
N
SOURCE
VIP
er
50
Au
xiliar
y
primary
windin
g
VDD
t
V
DDo
ff
VDDon
St
art u
p duty
cy
cle ~ 1
2%
C
VDD
FC
0032
0
VI
Pe
r50A-
E/A
SP
-E
5 Op
eration Descr
iption
17/31
Figure
13.
Over-tem
perature
Protecti
on
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
VIPe
r50
A-
E/AS
P-E
18/31
Figure
14.
Oscillato
r
Rt
C
t
OS
C
VDD
~360
Ω
CLK
FC0005
0
C
t
Fs
w
40kH
z
15nF
22nF
Forbidden are
a
Forbidden
ar
ea
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
FC
0003
0
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-P30
P31-P31
VIPER50A-22-E
Mfr. #:
Buy VIPER50A-22-E
Manufacturer:
STMicroelectronics
Description:
AC/DC Converters 700V 1.5A SMPS
Lifecycle:
New from this manufacturer.
Delivery:
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EMS
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