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IPS21 Folha de dados(PDF) 5 Page - List of Unclassifed Manufacturers

Nome de Peças IPS21
Descrição Electrónicos  Precision Feedback Controllers Fixed and PTAT references
PDF  12 Pages
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Fabricante Electrônico  ETC2 [List of Unclassifed Manufacturers]
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IPS21 Folha de dados(HTML) 5 Page - List of Unclassifed Manufacturers

  IPS21 Datasheet HTML 1Page - List of Unclassifed Manufacturers IPS21 Datasheet HTML 2Page - List of Unclassifed Manufacturers IPS21 Datasheet HTML 3Page - List of Unclassifed Manufacturers IPS21 Datasheet HTML 4Page - List of Unclassifed Manufacturers IPS21 Datasheet HTML 5Page - List of Unclassifed Manufacturers IPS21 Datasheet HTML 6Page - List of Unclassifed Manufacturers IPS21 Datasheet HTML 7Page - List of Unclassifed Manufacturers IPS21 Datasheet HTML 8Page - List of Unclassifed Manufacturers IPS21 Datasheet HTML 9Page - List of Unclassifed Manufacturers Next Button
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Power Management IPS20 and IPS21
© Copyright 2006-2009 - ASIC Advantage, Inc.
AADS00001/AA743
- Revision 5– Dec 2008
5 / 12
AUXILLIARY POWER SUPPLY
This simple circuitry allows to supply the chip with a separate power line. In case of short-circuit, when Vout+ <
Vcc, the chip still keeps working properly and limits the output current to its maximum targeted value.
DERIVATIVE OF AAI’s PATENTED SNUBBER NETWORK
This technique powers the feedback controller under all circumstances including short-circuits and is especially
suitable for flyback, PFC and forward converters.
TR1
VCC
1
VSENSE
2
VCOMP
3
OPTO
4
GND
8
OUT(-)
7
IS
6
ICOMP
5
U1
IPS20/21
D1
SCHOTTKY
D2
+
C4
+
C2
R1
R2
VOUT+
VOUT-
D3
C1
+
C3
snubber network
TR1
VCC
1
VSENSE
2
VCOMP
3
OPTO
4
GND
8
OUT(-)
7
IS
6
ICOMP
5
U1
IPS20/21
D1
SCHOTTKY
D2
DIODE
+ C1
+ C2
R1
R2
VOUT+
VOUT-
C3
Auxilliary Power Supply



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