Overview

The iW3627 is a digital offline PWM controller that provides a constant voltage for smart LED lighting applications and general-purpose power supplies up to 90W with power factor (PF >0.9) and low THD (<20%). It supports the most common single-stage isolated and non-isolated topologies (buck, buck-boost, or flyback) as a front-end or standalone power supply in solid-state lighting (SSL) applications with advanced digital control technology.

The iW3627 is compatible with Transphorm GaN technology and is ideal for applications requiring high efficiency and power factor correction (PFC).

iW3627 Functional Block Diagram
iW3627 Typical Applications Diagram
iW3627 Functional Block Diagram
iW3627 Typical Applications Diagram
  • 100W+ output power with enhanced internal MOSFET driver
  • Supports isolated or non-isolated topologies including flyback, buck, or buck-boost
  • High PF (>0.9) and low THD (<20%)
  • Adaptive output voltage transient detection
    • Enables fast transient response with variation < ±10% of nominal output voltage
  • Accommodates large capacitance variations and capacitor aging configurable minimum switching frequency
    • Enables low no-load standby power consumption (<200mW)
  • Configurable PWM maximum switching frequency
    • Optimizes for high efficiency, small size
  • Active start-up – Reduces turn-on time without increasing standby power
  • Tiny 6-pin SOT-23 package
  • Fully protected
    • Input brown-out protection
    • Over-temperature protection
    • Output overvoltage, overcurrent, and overload protection

Applications

  • Smart LED lighting
  • LED lighting ballasts
  • Front-end pre-regulator

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.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Moisture Sensitivity Level (MSL)
    Buy / Sample
    Part Number
    IW3627-00
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    Samples Available
    		 SOT23-6L Tape & Reel 1 Get Samples,
    iW3627-01
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    Samples Available
    		 SOT23-6L Tape & Reel 1 Get Samples,
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