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LTC3900 Datasheet Synchronous Rectifier Driver

Manufacturer: Linear Technology (now Analog Devices)

Overview: LTC3900 Synchronous Rectifier Driver for Forward Converters.

General Description

The LTC®3900 is a secondary-side synchronous rectifier driver designed to be used in isolated forward converter power supplies.

The chip drives N-channel rectifier MOSFETs and accepts pulse sychronization from the primary-side controller via a pulse transformer.

The LTC3900 incorporates a full range of protection for the external MOSFETs.

Key Features

  • n N-Channel Synchronous Rectifier MOSFET Driver n Programmable Timeout Protection n Reverse Inductor Current Protection n Pulse Transformer Synchronization n Wide VCC Supply Range: 4.5V to 11V n 15ns Rise/Fall Times at VCC = 5V, CL = 4700pF n Undervoltage Lockout n Small SO-8 Package.

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