Power & Power Management

Overview

The iW628 is a precision voltage reference used to quickly detect voltage drops on the output of an AC/DC power supply and provide instantaneous feedback to the controller in order to improve the dynamic loop response of the overall power supply.

The device consumes a minimum amount of current, allowing the overall power supply to maintain no-load power consumption levels below 20mW. As a complement to Renesas' family of PrimAccurate™ AC/DC controllers, the iW628 helps improve the already high-performing AC/DC controllers while eliminating additional secondary-side components normally required to achieve similar levels of performance.

iW628 Functional Block Diagram
iW628 Typical Applications Diagram
iW628 Functional Block Diagram
iW628 Typical Applications Diagram
  • Fast Response Time to Voltage Changes
  • Less than 100µA of 'Normally-Off' cut-off current during normal operation
  • Wide Input Voltage Range of 2.5V to 15V (at DRV pin)
  • Built-in Optocoupler LED Driver
    • Minimum 2mA Driver Current

Applications

  • AC/DC Power Adapters
  • AC/DC Networking and Embedded Applications
  • Precision Voltage Reference

Documentation

Title Type Date
iW628 Product Summary
PDF417 KB
Product Brief
iW628 Datasheet
PDF554 KB
Datasheet

Design & Development

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.

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Product Options

    Processing table
    Part Number
    Pkg. Type
    Carrier Type
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    iW628-00
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    		SOT23-3L Tape & Reel
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    Companion Products

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    Product Brief