Datasheet Linear Technology LT8302IS8E#TRPBF

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Design Notes

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  Monolithic No-Opto Isolated Flyback Converter Provides Versatile Solution &mdash DN525
  PDF, 259 Kb, File published: Feb 10, 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 …

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Manufacturer's Classification

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

Other Names:

LT8302IS8ETRPBF, LT8302IS8E TRPBF