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iW671 Datasheet Digital Green-Mode Synchronous Rectifier Controller

Manufacturer: Dialog Semiconductor (now Renesas)

General Description

The iW671 is a high performance synchronous rectifier controller with an integrated MOSFET driver for flyback converters operating at discontinuous conduction mode.

Combined with the MOSFET, the iW671 can emulate the diode rectifier at the secondary side of the flyback to reduce conduction loss.

The iW671 determines the timing of the driver by sensing the voltage across the RDS(ON) to achieve lossless sensing.

Overview

iW671 Digital Green-Mode Synchronous Rectifier Controller 1.