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VB408 데이터시트(PDF) 1 Page - STMicroelectronics

부품명 VB408
상세설명  HIGH VOLTAGE LINEAR REGULATOR POWER I.C.
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VB408 데이터시트(HTML) 1 Page - STMicroelectronics

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September 1999
1/8
®
VB408
/ VB408B / VB408FI
HIGH VOLTAGE LINEAR REGULATOR
POWER I.C.
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 VIPower
™ technology. 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,
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.
TYPE
∆V
IN,OUT
ILIM
VOUT
VB408
VB408FI
VB408B
400 V
40 mA
1.25 to VIN-30 V
1
PRELIMINARY DATA
BLOCK DIAGRAM
FC 00410
VOUT
VIN
AD J
BIAS
CIRCUIT
CURRENT
SENSE
+
_
+
_
RE F 1
+
_
Thermal
Protection
Control
Signal
Power
Stage
Current
Limitation
REF 2
RE F 3
TO-220
1
2
3
1
2
3
ISOWATT220
ORDER CODES :
ISOWATT220
VB408FI
TO-220
VB408
D2PAK
VB408B
1
3
D2PAK


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