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SI9100DN02-E3 Datasheet(PDF) 1 Page - Vishay Siliconix

No. de pieza SI9100DN02-E3
Descripción Electrónicos  3-W High-Voltage Switchmode Regulator
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Fabricante Electrónico  VISHAY [Vishay Siliconix]
Página de inicio  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9100DN02-E3 Datasheet(HTML) 1 Page - Vishay Siliconix

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Si9100
Vishay Siliconix
Document Number: 70000
S-42041—Rev. G, 15-Nov-04
www.vishay.com
1
3-W High-Voltage Switchmode Regulator
FEATURES
D 10- to 70-V Input Range
D Current-Mode Control
D On-Chip 150-V, 5-W MOSFET Switch
D Reference Selection
Si9100 − "1%
D High Efficiency Operation (> 80%)
D Internal Start-Up Circuit
D Internal Oscillator (1 MHz)
D SHUTDOWN and RESET
DESCRIPTION
The Si9100 high-voltage switchmode regulators are
monolithic BiC/DMOS integrated circuits which contain most of
the components necessary to implement high-efficiency
dc-to-dc converters up to 3 watts. They can either be operated
from a low-voltage dc supply, or directly from a 10- to 70-V
unregulated dc power source. The Si9100 may be used with
an appropriate transformer to implement most single-ended
isolated power converter topologies (i.e., flyback and forward),
or by using a level shift circuit can generate a +5-V or a −5-V
non-isolated output from a −48-V source.
The Si9100 is available in both standard and lead (Pb)-free
14-pin plastic DIP and 20-pin PLCC packages which are
specified to operate over the industrial temperature range of
−40_C to 85_C.
FUNCTIONAL BLOCK DIAGRAM
+
+
+
+
+
FB
COMP
DISCHARGE
OSC
14 (20)
13 (18)
9 (12)
8 (11)
7 (10)
2 V
Ref
Gen
R
S
Q
R
S
Q
DRAIN
SOURCE
3 (5)
5 (8)
4 (7)
11 (16)
12 (17)
Current-Mode
Comparator
C/L
1.2 V
Undervoltage Comparator
RESET
8.8 V
9.4 V
BIAS
Current
Sources
To
Internal
Circuits
10 (14)
1 (2)
6 (9)
2 (3)
Comparator
Error
Amplifier
VREF
VCC
+VIN
VCC
SHUTDOWN
4 V (1%)
OSC
OUT
OSC
IN
Note: Figures in parenthesis represent pin numbers for 20-pin package.
−VIN
(BODY)
Clock (1/2 OSC)
Applications information, see AN702 and AN713.


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