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PDF VB408B Data sheet ( Hoja de datos )

Número de pieza VB408B
Descripción HIGH VOLTAGE LINEAR REGULATOR POWER I.C.
Fabricantes STMicroelectronics 
Logotipo STMicroelectronics Logotipo



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No Preview Available ! VB408B Hoja de datos, Descripción, Manual

VB408
® / VB408B / VB408FI
HIGH VOLTAGE LINEAR REGULATOR
POWER I.C.
TYPE
VB408
VB408FI
VB408B
VIN,OUT
ILIM
400 V 40 mA
VOUT
1.25 to VIN-30 V
s INPUT VOLTAGE UP TO 400 V DC OR 285 V
RMS RECTIFIED
s OUTPUT VOLTAGE ADJUSTABLE FROM 1.25
TO VIN-30V
s OUTPUT CURRENT LIMITED TO 40 mA
s THERMAL SHUT-DOWN PROTECTION
s SHORT CIRCUIT PROTECTION
DESCRIPTION
The VB408, VB408B, VB408FI are fully protected
positive adjustable voltage regulators made using a
proprietary High Voltage VIPowertechnology. The
device can be connected to a D.C. source (up to 400V) or
in off-line application directly to the rectified main (110V/
230V). It is particularly suitable to be used in the
manufacture of DC/DC converters, AC/DC converters,
PRELIMINARY DATA
3
2
1
TO-220
3
2
1
ISOWATT220
3
1
D2PAK
ORDER CODES :
TO-220
ISOWATT220
D2PAK
VB408
VB408FI
VB408B
start-up circuits, pneumatic valve drivers and current
sources. The device is able to drive resistive or inductive
loads with an output voltage from 1.25V to VIN-30V
providing an internally limited output current; it has built in
short circuit and thermal shutdown protections. The
device does not provide galvanic insulation from main.
BLOCK DIAGRAM
VIN
BIAS
CIRCUIT
Power
Stage
RE F 3
T herm al
+ Protection
_
CURRENT
SENSE
Current
Limitation
+
_
REF 2
C ontrol
Signal
+ REF 1
_
VOUT
September 1999
AD J
F C 0 041 0
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1

1 page




VB408B pdf
VB408 / VB408B / VB408FI
DIM.
A
C
D
D1
E
F
F1
F2
G
H2
L2
L4
L5
L6
L7
L9
DIA.
MIN.
4.40
1.23
2.40
0.49
0.61
1.14
1.14
4.95
10.0
13.0
2.65
15.25
6.2
3.5
3.75
TO-220 MECHANICAL DATA
mm.
TYP
1.27
16.4
MAX.
4.60
1.32
2.72
0.70
0.88
1.70
1.70
5.15
10.40
14.0
2.95
15.75
6.6
3.93
3.85
MIN.
0.173
0.048
0.094
0.019
0.024
0.044
0.044
0.194
0.393
0.511
0.104
0.600
0.244
0.137
0.147
inch
TYP.
0.050
0.645
0.154
MAX.
0.181
0.051
0.107
0.027
0.034
0.067
0.067
0.203
0.409
0.551
0.116
0.620
0.260
0.151
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