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LT1952-1 - Single Switch Synchronous Forward Controller

General Description

The LT®1952/LT1952-1 are current mode PWM controllers optimized to control the forward converter topology, using one primary MOSFET.

The LT1952/LT1952-1 provide synchronous rectifier control, resulting in extremely high efficiency.

Key Features

  • n n n n LT1952/LT1952-1 Single Switch Synchronous Forward Controller.

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www.DataSheet.in FEATURES n n n n LT1952/LT1952-1 Single Switch Synchronous Forward Controller DESCRIPTION The LT®1952/LT1952-1 are current mode PWM controllers optimized to control the forward converter topology, using one primary MOSFET. The LT1952/LT1952-1 provide synchronous rectifier control, resulting in extremely high efficiency. A programmable Volt-Second clamp provides a safeguard for transformer reset that prevents saturation. This allows a single MOSFET on the primary side to reliably run at greater than 50% duty cycle for high MOSFET, transformer and rectifier utilization. The devices include soft-start for controlled exit from shutdown and undervoltage lockout.