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LT1681 - Dual Transistor Synchronous Forward Controller

Key Features

  • s High Voltage: Operation Up to 72V s Synchronizable Operating Frequency and Output Switch Phase for Multiple Controller Systems s Fixed Frequency Operation to 350kHz s Adaptive and Adjustable Blanking s Synchronous Rectifier Driver s Local 1% Voltage Reference s Undervoltage Lockout Protection with Hysteresis s Input Overvoltage Protection s Programmable Start Inhibit s Transformer Primary Saturation Protection s Optocoupler Feedback Support s Soft-Start Control U.

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Full PDF Text Transcription (Reference)

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U U LT1681 Dual Transistor Synchronous Forward Controller FEATURES s High Voltage: Operation Up to 72V s Synchronizable Operating Frequency and Output Switch Phase for Multiple Controller Systems s Fixed Frequency Operation to 350kHz s Adaptive and Adjustable Blanking s Synchronous Rectifier Driver s Local 1% Voltage Reference s Undervoltage Lockout Protection with Hysteresis s Input Overvoltage Protection s Programmable Start Inhibit s Transformer Primary Saturation Protection s Optocoupler Feedback Support s Soft-Start Control U APPLICATIO S s Isolated Telecommunication Systems s Personal Computers and Peripherals s Lead Acid Battery Backup Systems s Automotive and Heavy Equipment DESCRIPTIO The LT®1681 controller simplifies the design of high power synchronous dual transistor forwar