Datasheet Linear Technology LTC4417 — Даташит

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Экологический статус

Статьи

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  Prioritize Power Sources in Any Order, Regardless of Relative Voltage: No µP Required &mdash LT Journal
  PDF, 3.1 Мб, Файл опубликован: 9 июл 2013
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  Prioritize Power Sources in Any Order, Regardless of Relative
  Voltage: No ВµP Required
  Sam Tran Does your application have multiple input power sources? Are one or more secondary
  source voltages equal to or higher than the main source? How do you ensure the
  main source powers the output when a higher voltage, secondary source is present?
  How do you prevent sources from cross conducting, or backfeeding during input
  source switchover? Do you need to prevent current sharing between similar voltage
  sources? Are you worried about users plugging in sources backwards or plugging in
  overvoltage sources to the system? The LTC4417 prioritized PowerPathв„ў controller,
  with its wide 2.5V to 36V operating voltage range, solves all these issues by controlling
  the connection of the input sources based on user-defined priority and validity while
  protecting the system from overvoltage and reverse voltage insertions up to В±42V.
  PRIORITIZING THREE
  INPUT SOURCES FigureВ 1 shows a triple-input prioritizer.
  Here, the 12V wall adapter is given top
  priority, the 14.8V Li-ion battery stack is
  prioritized second, and 12V sealed lead
  acid (SLA) battery has the lowest priority.
  Priority is simply set by connecting the
  sources to the LTC4417 in pin order: V1 is
  the highest priority; V3 the lowest priority.
  The LTC4417 connects a higher priority input source to the output as long
  as the input source voltage remains …

Модельный ряд

Классификация производителя

• Monitor, Control and Protection > PowerPath Controllers & Ideal Diodes
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Power Management