LT1247 - 1MHz Off-Line Current Mode PWM and DC/DC Converter

Features
  • Current Mode Operation to 1MHz
  • 30ns Current Sense Delay
  • <250mA Low Start-Up Current
  • Current Sense Leading Edge Blanking
  • Pin Compatible with UC1842
  • Undervoltage Lockout with Hysteresis
  • No Cross-Conduction Current
  • Trimmed Bandgap Reference
  • 1A Totem Pole Output
Typical Application
Applications
  • Off-Line Converters
  • DC/DC Converters
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LT1247CN8#PBFN-8C$2.60$2.10
LT1247CS8#PBFSO-8C$2.85$2.30
LT1247CS8#TRPBFSO-8C$2.36
Demo Boards
Part NumberDescriptionPrice
DC227A-ALT1247CS8 LT1431CS8 | 35W, Isolated Forward Converter, Half Brick, 36 to 72Vin, 5V or 3.3Vout @ 7A, 500V DC IsolationContact Factory
DC227A-BLT1247CS8 LT1431CS8 | 35W, Isolated Forward Converter, Half Brick, 36 to 72Vin, 5V or 3.3Vout @ 7A, 1500V DC IsolationContact Factory
DC227A-CLT1247CS8 LT1431CS8 | 35W, Isolated Forward Converter, Half Brick, 36 to 72Vin, 5V or 3.3Vout @ 7A, 500V DC Isolation, High EfficiencyContact Factory
Datasheet
Spec Notice
Reliability Data
LT Journal
Related Product
LT1246/LT1247 - 1MHz Off-Line Current Mode PWM and DC/DC Converter
LT1246 - SPECIFICATION NOTICE
R293 Reliability Data
Sep 1999 35 Watt Isolated DC/DC Converter Replaces Modules at Half the Cost
LT1247 Footprints and Symbols