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PDF ( 数据手册 , 数据表 ) VB408

零件编号 VB408
描述 HIGH VOLTAGE LINEAR REGULATOR POWER I.C.
制造商 STMicroelectronics
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VB408 数据手册, 描述, 功能
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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VB408 pdf, 数据表
VB408 / VB408B / VB408FI
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 1999 STMicroelectronics - Printed in ITALY- All Rights Reserved.
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco -
The Netherlands- Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
http://www.st.com
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