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Datasheet Linear Technology LT3512MPMS#TRPBF

ПроизводительLinear Technology

Monolithic High Voltage Isolated Flyback Converter


  • Скачать » Datasheet, PDF, 315 Кб, Версия: B, Файл закачен 31-07-2016
    LT3512 - Monolithic High Voltage Isolated Flyback Converter
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    Monolithic High Voltage
    Isolated Flyback Converter
    Features Description n n The LT3512 is a high voltage monolithic switching regulator specifically designed for the isolated flyback topology.
    No third winding or opto-isolator is required for regulation as the part senses output voltage directly from the
    primary-side flyback waveform. The device integrates a
    420mA, 150V power switch, high voltage circuitry, and
    control into a high voltage 16-lead MSOP package with
    four leads removed. 4.5V to 100V Input Voltage Range
    Internal 420mA, 150V Power Switch
    Boundary Mode Operation
    No Transformer Third Winding or
    Opto-Isolator Required for Regulatio Improved Primary-Side Winding Feedback
    Load Regulatio V
    OUT Set with Two External Resistors
    n BIAS Pin for Internal Bias Supply and Power
    Switch Driver
    n No External Start-Up Resistor
    n 16-Lead MSOP Package The LT3512 operates from an input voltage range of 4.5V
    to 100V and delivers up to 4.5W of isolated output power.
    Two external resistors and the transformer turns ratio
    easily set the output voltage. Off-the-shelf transformers
    are available for several applications. The high level of ...


Корпус / Упаковка / Маркировка

Код корпусаMS
Индекс корпуса05-08-1847


Demo BoardsDC1803A
Design ToolsLTspice File
Экспортный контрольнет
Основные особенностиBoundary Mode Operation, No Opto Isolator
Тактовая частота650 kHz
Integrated Inductorнет
Isupply3.5 мА
Количество выходов1
Рабочий диапазон температурот -55 до 125 °C
Switch Current0.6 A
Vin Max100 В
Vin Min4.5 В
Vout Max150 В
Vout Maximum150V
Vswitch Max150 В

Экологический статус


Design Notes

  • Скачать » Design Notes - DN509, PDF, 723 Кб, 24-10-2012
    Micropower Isolated Flyback Converter with Input Voltage Range from 6V to 100V
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    Micropower Isolated Flyback Converter with Input Voltage
    Range from 6V to 100V
    Design Note 509
    Zhongming Ye
    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 ...
  • Скачать » Design Notes - DN525, PDF, 259 Кб, 10-02-2014
    Monolithic No-Opto Isolated Flyback Converter Provides Versatile Solution
    Выписка из документа ↓
    Monolithic No-Opto Isolated Flyback Converter Provides
    Versatile Solution
    Design Note 525
    George Qian
    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

Серия: LT3512 (8)

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

Варианты написания:


На английском языке: Datasheet Linear Technology LT3512MPMS#TRPBF

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