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
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

Applications

Documentation

= Featured Documentation
Type Title Date
Datasheet
iW873 Datasheet
Log in to Download PDF 655 KB
Product Brief
iW873 Product Summary
PDF 453 KB
Manual - Development Tools
NL5 Quick Start Guide
PDF 3.96 MB
3 items

Design & Development

Software & Tools
DiaSIM™ Simulation Models
DiaSIM simulation models let the user test and validate AC/DC power supply designs prior to prototyping.
Downloads
NL5 Quick Start Guide
 Simulator Renesas
1 item

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.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Buy / Sample
    Part Number
    IW873-00
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    memory
    view_in_ar
    		SOIC-8 Tape & Reel 1
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