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LT1105C Datasheet(PDF) 32 Page - Linear Technology

Part # LT1105C
Description  Offline Switching Regulator
PDF  32 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1105C Datasheet(HTML) 32 Page - Linear Technology

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LT1103/LT1105
© LINEAR TECHNOLOGY CORPORATION 1992
11035fd LT/TP 0998 REV D 2K • PRINTED IN USA
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408)432-1900q FAX:(408)434-0507 q www.linear-tech.com
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
LT1241
High Speed Current Mode Pulse Width Modulators
Up to 500kHz Operation
LT1246
Off-Line Current Mode PWM
1MHz Operation
LT1248
Power Factor Controller
Programmable Frequency, 16-Pin SO
LT1249
Power Factor Controller
100kHz, SO-8
LT1508
Power Factor and PWM Controller
Voltage Mode
LT1509
Power Factor and PWM Controller
Current Mode
Minimum Parts Count Fully-Isolated Flyback 100kHz 50W Converter
TYPICAL APPLICATION
220k
1W
330
Ω
0.1
µF
499
Ω
39
µF
25V
1000pF
100
Ω
1N4148
16.2k
1%
5.36k
1%
BUK426-800A
MBR2045
10
µH
5V
10A
50V
470
µF
35V
3600
µF
WINDINGS FOR
OPTIONAL
±12VDC OUTPUTS
10
Ω
1
µF
25V
220
µF
385V
BAV21
BAV21
390pF
1.5KE300A
5W
MUR150
BRIDGE
RECTIFIER
+
LINE
FILTER
85VAC TO 270VAC
+
–
TRANSFORMER DATA:
COILTRONICS - CTX110228-3
L(PRI) = 1.6mH
NPRI:NSEC = 1:0.05
NBIAS:NSEC = 1:0.27
0.047
µF
LT1103 TA01
*OUTPUT CAPACITOR IS THREE 1200
µF,
50V CAPACITORS IN PARALLEL TO
ACHIEVE REQUIRED RIPPLE CURRENT
RATING AND LOW ESR.
OPTIONAL OUTPUT FILTER
VIN
VSW
VC
FB
GND
OSC
15V
LT1103
DANGER!!
HIGH
VOLTAGE!!
+
+
+
+
+
Danger!! Lethal Voltages Present – See Text
Load Regulation
IOUT (A)
0
5.05
5.15
5.25
8
LT1103 TA14
4.95
4.85
4.75
2
4
6
10
4.80
4.90
5.00
5.10
5.20
1
3
57
9
85VAC
110VAC
270VAC
220VAC



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