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iW873
Secondary-Side Synchronous Rectifier Controller with Integrated 60V MOSFET
Fully Integrated Secondary-Side Rectification Circuit Simplifies Design and Improves Efficiency
The iW873 secondary-side synchronous rectification solution works with several of Dialog’s primary-side controllers to deliver the high efficiency needed for high power density smartphone and tablet power adapters.
The iW873 integrates a 60V power MOSFET with Dialog’s proprietary digital adaptive turn-off control technology to replace the secondary-side Schottky diode with a MOSFET for higher power density adapters. It also uses adaptive control to minimize dead-time, eliminating the need for a parallel Schottky diode required by conventional synchronous rectifier solutions.
A DiaSIM simulation model is available for the iW673. For more information and where to download, please visit the DiaSIM page.
Features
Integrated 60V MOSFET for Synchronous Rectification
Adaptive Control Minimizes Dead Time
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Eliminates Parallel Schottky Diode
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Higher Efficiency, Lower BOM Cost
Ultra-Fast Dynamic Load Response
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Integrated Adaptive Voltage Position Monitor
Ultra-Low No-Load Operating Current < 0.65mA
Wide Input Voltage Range up to 25V
Up to 15W Output Power
Integrated, Pulse Linear Regulator Allows Operation Down to 2.4V Output Voltage
Supports 3.6V to 12V AC/DC Adapters
Applications
Compact AC/DC adapters/chargers for smartphones, tablets
Model Available!
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