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Número de pieza
componentes Descripción
VIPER17LDTR Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
VIPER17LDTR
Off-line high voltage converters
STMicroelectronics
VIPER17LDTR Datasheet PDF : 33 Pages
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Block diagram
1
Block diagram
VIPER17
Figure 2. Block diagram
BR
VV
V
DDD
c
D
c
DRAIN
CONT
15uA
OVP
LOGIC
OVP
0.45V
SOFT
START
.
Vin_OK
OCP
BLOCK
6uA
Internal Supply bus
&
Ref erence Voltages
OCP
+
PWM
-
SUPPLY
& UVLO
HV_ON Istart-up
UVLO
OSCILLATOR
BURST TURN-ON
LOGIC
THERMAL
SHUTDOWN
OTP
S
Q
LEB
R1
R2
+
-
Ref
2nd OCP
LOGIC
OLP OVP OTP
BURST-MODE
LOGIC
BURST
Rsense
FB
GND
2
Typical power
Table 2. Typical power
Part number
230 V
AC
Adapter
(1)
Open frame
(2)
85-265 V
AC
Adapter
(1)
Open frame
(2)
VIPER17
9W
12 W
5W
7W
1. Typical continuous power in non ventilated enclosed adapter measured at 50
°
C ambient.
2. Maximum practical continuous power in an open frame design at 50
°
C ambient, with adequate heat sinking.
4/33
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