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iW3627

Digital Constant-Voltage Offline PWM Controller with Power Factor Correction for Applications up to 90W

iw3627_typical_applications_diagram_wireless.jpg

90W Capable, Constant-Voltage PWM Controller in SOT-23 for Smart Lighting

The iW3627 is a digital off-line PWM controller that provides a constant voltage for smart LED lighting applications up to 90W with high 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 SSL applications with advanced digital control technology.

Lifecycle status

● Active

Features

Up to 90W 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 Stand-By Power

Tiny 6 Pin SOT-23 Package

Fully Protected

  • Input Brown-Out Protection
  • Over-Temperature Protection
  • Output Over-Voltage, Over-Current and Over-Load Protection

Applications

Smart LED Lighting

LED Lighting Ballasts

Front-End Pre-Regulator

Block Diagrams

iw3627_typical_applications_diagram_wireless.jpg

Typical Applications Diagram

iw3627_functional_block_diagram.jpg

Functional Block Diagram

To order a sample of any of our products, please complete the following form. We will provide up to five parts free of charge. Our sales department will provide pricing for samples orders exceeding five parts.

Sample Request Form

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Product Briefs and Summaries
Name Date Version
iW3627 Product Summary (594.48 KB) 28/06/2016 1.4
iW3627 Product Summary (Chinese) (673.27 KB) 09/10/2018 1.3
Datasheets
Name Date Version
iW3627 Datasheet (1.34 MB) (Registered users only) 07/09/2018 1.5
Reference designs
Name Date Version
Reference Design EBC20048: iW3627-00, iW3638-02 and iW339-00, 90V-305VAC Input, 42V/1.5A Output, 0-10V Dimmable External LED Driver Design (8.46 MB) (Registered users only) 13/02/2019 1.1
Reference Design EBC20056: iW3627-00, iW3638-01 and iW339-00, 90V-305VAC Input, 42V/1.35A Output, 0-10V and BLE Dimmable External LED Driver Design (11.93 MB) (Registered users only) 20/12/2018 1.0