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SI9121DY-3-T1-E3 Datasheet(PDF) 8 Page - Vishay Siliconix

No. de pieza SI9121DY-3-T1-E3
Descripción Electrónicos  High-Voltage, Non-Isolated Buck-Boost Converter for ISDN Digital Phones
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Fabricante Electrónico  VISHAY [Vishay Siliconix]
Página de inicio  http://www.vishay.com
Logo VISHAY - Vishay Siliconix

SI9121DY-3-T1-E3 Datasheet(HTML) 8 Page - Vishay Siliconix

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Si9121
Vishay Siliconix
www.vishay.com
8
Document Number: 71112
S-40708—Rev. C, 19-Apr-04
TYPICAL APPLICATION CIRCUIT
BYPASS
VCC
VNEG
LX
GND
VOUT
COMP
CS
1 mF
C6
0.1 mF
C5*
33 mF
80 V
C4
R1
0.25 W
1/2 W
180 pF
C7
220 mF
C2
0.1 mF*
C3
GND
VNEG
VOUT
+5 V/400 mA
or
+3.3 V/400 mA
L1
68 mH
+
+
10MQ100N
0.1 mF
C1
R2
75 kW
(27 kW for Si9121DY-3)
0.1 mF
C8
+
Si9121DY-5
or
Si9121DY-3
6
3
7
2
8
5
4
1
FIGURE 1.
Typical Applications Circuit
*Optional
−10 to −60 V
Silk Screen
VNEG
BYPASS
COMP
COIL
CS
VCC
GND
VOUT
+
Si9121DY-5
1
2
3
4
8
7
6
5
FIGURE 2.
Si9121 Application with External Vcc Through Winding
R1
0.25
1/2 W
C3
0.1 mF
C4
180 pF
GND
−VIN
−10 to −60 V
C1
33 mF
80 V
C5
0.1 mF
R2
75 kW
(27 kW for Si9121DY-3)
C2*
0.1 mF
GND
+VOUT
+5 V
@ 400 mA
C8*
0.1 mF
C7
220 mF
10 V
+
D1
10MQ100N
Ns
T1
68 mH
Np
D2
BAS21
C6
1 mF
*Optional


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