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Datasheet Linear Technology LT8315IFE#PBF

ManufacturerLinear Technology
Part NumberLT8315IFE#PBF

560VIN Micropower No-Opto Isolated Flyback Converter with 630V/300mA Switch


  • Download » Datasheet, PDF, 1.5 Mb, Revision: F
    LT8315 - 560VIN Micropower No-Opto Isolated Flyback Converter with 630V/300mA Switch
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    560VIN Micropower No-Opto
    Isolated Flyback Converter
    with 630V/300mA Switch
    Description Features
    Wide Input Voltage Range: 18V to 560V
    nn 630V/300mA Integrated Power Switch
    nn No Opto-Isolator Required for Regulation
    nn Quasi-Resonant Boundary Mode Operation
    nn Constant-Current and Constant-Voltage Regulation
    nn Low-Ripple Light Load Burst ModeВ® Operation
    nn Low Quiescent Current: 70ОјA
    nn Programmable Current Limit and Soft-Start
    nn TSSOP Package with High-Voltage Spacing The LTВ®8315 is a high voltage flyback converter with integrated 630V/300mA switch. No opto-isolator is needed for
    regulation. The device samples the output voltage from the
    isolated flyback waveform appearing across a third winding on the transformer. Quasi-resonant boundary mode
    operation improves load regulation, reduces transformer
    size, and maintains high efficiency. nn Applications At start-up, the LT8315 charges its INTVCC capacitor via a
    current source attached to the DRAIN pin. During normal
    operation, the current source turns off and the device
    draws its power from a third winding on the transformer. Isolated Telecom, Automotive, Industrial, Medical
    Power Supplies
    nn Isolated Off-Line Housekeeping Power Supplies ...



Package CodeFE


Demo BoardsDC2337A
Design ToolsLTspice File
Export Controlno yes/no
FeaturesNo Opto Isolator, Burst Mode
Frequency140 kHz
Integrated Inductorno yes/no
Ishutdown8 ВµA
Isupply0.07 mA
Max Phases1
Monolithicyes yes/no
Number of Outputs1
Operating Temperature Range-40 to 85 °C
Polyphaseno yes/no
Switch Current0.8 A
Synchronousno yes/no
Topology 1Flyback
Vin Max560 V
Vin Min18 V
Vout Max630 V
Vout Maximum630V
Vref Accuracy Over Temp2 %
Vswitch Max630 V

Eco Plan


Moldel Line

Series: LT8315 (6)

Manufacturer's Classification

  • Power Management > Switching Regulator > Flyback, Forward and Isolated Controllers

Other Names:


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