iW671 Product Brief
Digital Green-Mode Synchronous Rectifier Controller
1.0 Features
●● Digital adaptive turn-off contr...
iW671 Product Brief
Digital Green-Mode Synchronous Rectifier Controller
1.0 Features
●● Digital adaptive turn-off control minimizes deadtime and eliminates the
schottky diode
●● Integrated pulse linear
regulator (PLR) allows SR operation at low system output voltage down to 2V in typical 5V2.5A USB charger applications
●● Wide operating voltage up to 17V Input
●● Optimized 5-V MOSFET gate driver
●● Intelligent low power management achieves ultra-low no-load operating current < 0.6mA
●● Lossless MOSFET VDS sensing for SR timing control
●● Integrated adaptive voltage position monitor for fast flyback output voltage undershoot detection
●● Device available in 8-lead SOIC package and 8-pin 3mm x 3mm DFN package
2.0 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 ...