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Экологический статус

Design Notes

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  Micropower Isolated Flyback Converter with Input Voltage Range from 6V to 100V &mdash DN509
  PDF, 723 Кб, Файл опубликован: 24 окт 2012
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  Micropower Isolated Flyback Converter with Input Voltage
  Range from 6V to 100V
  Design Note 509
  Zhongming Ye
  Introduction
  Flyback converters are widely used in isolated DC/DC
  applications because of their relative simplicity and
  low cost compared to alternative isolated topologies. Even so, designing a traditional flyback is not
  easy—the transformer requires careful design, and
  loop compensation is complicated by the well known
  right-half plane (RHP) zero and the propagation delay
  of the opto-coupler.
  Linear Technology’s no-opto flyback converters, such
  as the LT В® 3573, LT3574, LT3575, LT3511 and LT3512,
  simplify the design of flyback converters by incorporating a primary-side sensing scheme and running the
  converter in boundary mode. The LT8300 high voltage
  monolithic isolated flyback converter further simplifies
  flyback design by integrating a 260mA, 150V DMOS
  power switch, an internal compensation network and a
  soft-start capacitor. The LT8300 operates with input supply voltages from 6V to 100V and delivers output power
  of up to 2W with as few as five external components.
  The LT8300 operates in boundary mode and offers low
  ripple Burst ModeВ® operation, enabling the design of …

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  Monolithic No-Opto Isolated Flyback Converter Provides Versatile Solution &mdash DN525
  PDF, 259 Кб, Файл опубликован: 10 фев 2014
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  Monolithic No-Opto Isolated Flyback Converter Provides
  Versatile Solution
  Design Note 525
  George Qian
  Introduction
  Traditionally, isolated power supplies use an optocoupler in the feedback loop to transfer regulation
  information across the isolation barrier. Unfortunately,
  an opto-coupler’s gain characteristic varies widely over
  temperature and lifetime, increasing the difficulty of
  power supply loop compensation.
  Linear Technology’s line of no-opto flyback converters,
  such as the LTВ®3573, LT3574, LT3575, LT3511, LT3512
  and LT8300, simplify flyback design by incorporating
  a primary-side sensing scheme, thereby eliminating
  the need for an opto-isolator.
  The LT8302 monolithic no-opto flyback converter
  has an integrated 65V/3.6A DMOS power switch with
  internal loop compensation and soft-start. The LT8302
  can operate from an input voltage as low as 2.8V to
  42V, and deliver output power up to 18W. It offers
  low ripple Burst Mode В® operation at light loads, providing low standby power loss, and features a low
  component count.
  Performance and Ease of Use …

Модельный ряд

Классификация производителя

• Power Management > Switching Regulator > Flyback, Forward and Isolated Controllers
• Space & Harsh Environment > Extended Temperature Plastic (H & MP) > Extended Temperature (H & MP) Switching Regulators