Datasheet Linear Technology LTM8057 — Даташит

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Экологический статус

Design Notes

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  Increasing Output Voltage and Current Range Using Series- Connected Isolated ОјModule Converters &mdash DN530
  PDF, 172 Кб, Файл опубликован: 22 июл 2014
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  Increasing Output Voltage and Current Range Using SeriesConnected Isolated µModule Converters – Design Note 530
  Jesus Rosales and Willie Chan
  Linear Technology’s isolated µModule ® converters
  are compact solutions for breaking ground loops.
  These converters employ a flyback architecture whose
  maximum output current varies with input voltage and
  output voltage. Although their output voltage range
  is limited to a maximum of 12V, one can increase the
  output voltage or the output current range. The solution simply involves connecting the secondary side
  of two or more isolated ВµModule converters in series.
  The LTM В®8057 and LTM8058 UL60950-recognized
  2kV AC isolated ВµModule converters will be used to
  demonstrate this design approach, which can also be
  applied to the LTM8046, LTM8047 and LTM8048. Let’s
  assume an output of 10V at 300mA is desired from
  a 20V input. Reviewing the maximum output current
  curve from Figure 1, we notice that a single LTM8057
  is insufficient to meet the output current requirement
  under these conditions.
  However, upon noticing that a single LTM8057 can
  deliver 300mA at 5V from a 20V input, a solution becomes apparent. Since the output voltage is isolated
  from the input, the outputs of two LTM8057s set at
  5V can be connected in series to achieve a 10V output …

Статьи

• Скачать
  Increasing Output Voltage and Current Range Using Series-Connected Isolated µModule Converters &mdash LT Journal
  PDF, 624 Кб, Файл опубликован: 27 окт 2014
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  Increasing Output Voltage and Current Range Using
  Series-Connected Isolated ВµModule Converters
  Jesus Rosales The LTMВ®8057 and LTM8058 UL60950recognized 2kV AC isolated ВµModule
  converters are used here to demonstrate
  this design approach, which can also
  be applied to the LTM8046, LTM8047
  and LTM8048. Let’s assume an output of 10V at 300m A is desired from a
  20V input. Reviewing the maximum
  output current curve from Figure 1, we VIN
  5V TO 28V
  GND + CIN1
  10ВµF
  35V C4
  4.7ВµF
  50V
  C6
  0.1ВµF
  25V
  R2
  6.98k
  1% Figure 2. Two LTM8057 ВµModule
  regulators with outputs connected
  in series, supporting a 10V, 300mA …

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Классификация производителя

• µModule Solutions > µModule Regulators > Isolated µModule Converters | Extended Temperature (H & MP) µModule Regulators