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LINEAR TECHNOLOGY  LT1105CN8#PBF  AC/DC Off-Line Switcher IC, Flyback, 85 VAC - 270 VAC, 200 kHz, 1.5 A output, 100 W, DIP-8

LINEAR TECHNOLOGY LT1105CN8#PBF
Manufacturer Part No:
LT1105CN8#PBF
Order Code:
1273671
Technical Datasheet:
See all Technical Docs

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Product Overview

The LT1105CN8#PBF is an offline Switching Regulator designed for high input voltage applications using an external FET switch whose source is driven by the open collector output of the LT1103. For higher power applications or additional switch current flexibility, the LT1105 is available and its totem pole output drives the gate of an external FET. Unique design of this eliminates the need for an optocoupler while still providing ±1% load and line regulation in a magnetic flux-sensed converter. This significantly simplifies the design of offline power supplies and reduces the number of components which must cross the isolation barrier to one, the transformer. The current mode switching techniques are well suited to transformer isolated fly-back and forward topologies while providing ease of frequency compensation with a minimum of external components. Low external part count for a typical application combines with a 200kHz maximum switching frequency to achieve high power density.
  • Fully protected against overloads
  • Overvoltage lockout of main supply
  • Protected against under drive or overdrive to FET
  • Operates in continuous or discontinuous mode
  • Ideal for fly-back and forward topologies
  • Isolated fly-back mode has fully floating outputs
  • Internal 1A totem-pole driver
  • Start-up mode draws only 200µA
  • ±1% Line and load regulation with no optocoupler

Product Information

Input Voltage AC Min:
85V
Input Voltage AC Max:
270V
AC / DC Converter Case Style:
DIP
No. of Pins:
8Pins
Power Rating:
100W
Topology:
Flyback
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Cut Tape
Product Range:
-
MSL:
-
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Signal Processing
  • Communications & Networking
  • Industrial

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000833

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