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LT8302-3 Datasheet

LT8302-3 Datasheet

42VIN Micropower No-Opto Isolated Flyback Converter with 65V/3.6A Switch
Part No.: LT8302-3
Page: 26 Pages
Size: 1381 KB
Manufacturer: Linear Technology
Logo:
Views: 1
Update Time: 2023-11-10 10:08:43
DataSheet: Download

LT8302-3 Datasheet Applicable Part

Part No. Packing SPQ Marking MSL Pins Temp Range Package Description Buy
LT8302ES8E-3#PBF Tube 100 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302ES8E-3#TRPBF Reel 2500 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302ES8E-3#TRMPBF Reel 500 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302IS8E-3#PBF Tube 100 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302IS8E-3#TRPBF Reel 2500 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302IS8E-3#TRMPBF Reel 500 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302JS8E-3#PBF Tube 100 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302JS8E-3#TRPBF Reel 2500 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302JS8E-3#TRMPBF Reel 500 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302HS8E-3#PBF Tube 100 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302HS8E-3#TRPBF Reel 2500 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302HS8E-3#TRMPBF Reel 500 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302ES8E-3#WPBF Tube 100 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302ES8E-3#WTRPBF Reel 2500 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302ES8E-3#WTRMPBF Reel 500 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302IS8E-3#WPBF Tube 100 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302IS8E-3#WTRPBF Reel 2500 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302IS8E-3#WTRMPBF Reel 500 83023 1 8 -40°C ~ 125°C 8-Lead Plastic SO  
LT8302JS8E-3#WPBF Tube 100 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302JS8E-3#WTRPBF Reel 2500 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302JS8E-3#WTRMPBF Reel 500 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302HS8E-3#WPBF Tube 100 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302HS8E-3#WTRPBF Reel 2500 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
LT8302HS8E-3#WTRMPBF Reel 500 83023 1 8 -40°C ~ 150°C 8-Lead Plastic SO  
SPQ:Standard Pack Quantity;MSL:Moisture Sensitivity Level

LT8302-3 Datasheet(PDF)

LT8302-3 Datasheet(Picture)

LT8302-3 Features

  • 3V to 42V Input Voltage Range
  • 3.6A, 65V Internal DMOS Power Switch
  • Low Quiescent Current:
    • 106µA in Sleep Mode
    • 380µA in Active Mode
  • Quasi-Resonant Boundary Mode Operation at Heavy Load
  • Low Ripple Burst Mode® Operation at Light Load
  • Minimum Load < 0.5% (Typ) of Full Output
  • No Transformer Third Winding or Opto-Isolator Required for Output Voltage Regulation
  • Accurate EN/UVLO Threshold and Hysteresis
  • Internal Compensation and Soft-Start
  • Temperature Compensation for Output Diode
  • Output Short-Circuit Protection
  • Thermally Enhanced 8-Lead SO Package
  • AEC-Q100 Qualified for Automotive Applications

LT8302-3 Applications

  • Isolated Automotive, Industrial, Medical Power Supplies
  • Isolated Auxiliary/Housekeeping Power Supplies

LT8302-3 Description

The LT8302-3 is a monolithic micropower isolated flyback converter. By sampling the isolated output voltage directly from the primary-side flyback waveform, the part requires no third winding or opto-isolator for regulation. The output voltage is programmed with two external resistors and a third optional temperature compensation resistor. Boundary mode operation provides a small magnetic solution with excellent load regulation. Low ripple Burst Mode operation maintains high efficiency at light load while minimizing the output voltage ripple. A 3.6A, 65V DMOS power switch is integrated along with all the high voltage circuitry and control logic into a thermally enhanced 8-lead SO package.

The LT8302-3 operates from an input voltage range of 3V to 42V and delivers up to 18W of isolated output power. The high level of integration and the use of boundary and low ripple burst modes result in a simple to use, low component count, and high efficiency application solution for isolated power delivery.

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