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Datasheet Linear Technology LT3798MPMSE#TRPBF

ManufacturerLinear Technology
Part NumberLT3798MPMSE#TRPBF

Isolated No Opto-Coupler Flyback Controller with Active PFC


  • Download » Datasheet, PDF, 423 Kb, Revision: A
    LT3798 - Isolated No Opto-Coupler Flyback Controller with Active PFC
    Docket ↓
    Isolated No Opto-Coupler
    Flyback Controller
    with Active PFC
    DESCRIPTION FEATURES Isolated PFC Flyback with Minimum Number of
    External Components
    n V and V
    OUT Limited Only by External Components
    n Active Power Factor Correctio Low Harmonic Distortio No Opto-Coupler Required
    n Constant-Current and Constant-Voltage Regulatio Accurate Regulated Voltage and Current (В±5% Typical)
    n Energy Star Compliant (<0.5W No Load Operation)
    n Thermally Enhanced 16-lead MSOP Package The LTВ®3798 is a constant-voltage/constant-current isolated flyback controller that combines active power factor
    correction (PFC) with no opto-coupler required for output
    voltage feedback into a single-stage converter. A LT3798
    based design can achieve a power factor of greater than 0.97
    by actively modulating the input current, allowing compliance with most Harmonic Current Emission requirements. n The LT3798 is well suited for a wide variety of off-line
    applications. The input range can be scaled up or down,
    depending mainly on the choice of external components.
    Efficiencies higher than 86% can be achieved with output
    power levels up to 100W. In addition, the LT3798 can easily
    be designed into high DC input applications. APPLICATIONS Offline 5W to 100W+ Applications High DC VIN Isolated Applications
    n Offline Bus Converter (12V, 24V or 48V Outputs) L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear ...



Package CodeMSE


Demo BoardsDC1817B
Design ToolsLTspice File
Export Controlno yes/no
FeaturesNo Opto Isolator, Active PFC
Frequency150 kHz
Isupply1.3 mA
Min Operating Threshold10 V
Operating Temperature Range-55 to 125 °C
Vin Range10V to 38V, 42V Shunt (DC), 90V to 265V (AC)

Eco Plan


Moldel Line

Series: LT3798 (8)

Manufacturer's Classification

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

Other Names:


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