Secondary-Side Synchronous Rectifier Controller with Integrated 60V MOSFET
Overview
Fully Integrated Secondary-Side Rectification Circuit Simplifies Design and Improves Efficiency
The iW873 secondary-side synchronous rectification solution works with several of Renesas' 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 Renesas' 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.
iW873 Typical Applications Diagram
- Integrated 60V MOSFET for Synchronous Rectification
- Adaptive Control Minimizes Dead Time
- Eliminates Parallel Schottky Diode
- Higher Efficiency, Lower BOM Cost
- Ultra-Fast Dynamic Load Response
- 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
- Compact AC/DC Adapters/Chargers for Smartphones and Tablets
- DiaSIM™ Simulation Model Available
Design & Development
Software & Tool Pages
| Title | Type | Company |
|---|---|---|
| DiaSIM™ Simulation ModelsDiaSIM simulation models let the user test and validate AC/DC power supply designs prior to prototying.Downloads: | Simulator | Renesas |
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
