Products: AC-DC ICs: iW1689

iW1689: Low-Power Off-line Digital PWM Controller

iw1689

Features

Primary-side feedback eliminates opto-isolators and simplifies design
Multi-mode operation for highest overall efficiency
±4% typical output voltage regulation
No external compensation components required
Complies with CEC/EPA/IEC no load power consumption and average efficiency regulations
Built-in secondary constant-current control with primary-side feedback
Low start-up current (8 µA typical)
Built-in soft start
Built-in short circuit protection
AC line under/overvoltage and output overvoltage protection
Fixed 40 kHz switching frequency
Available in a space-saving SOT-23 package

Press Releases

iWatt in the News

January 25, 2012
iWatt to Present at Solid State Lighting Investor Forum during
Strategies in Light USA 2012

December 05, 2011
iWatt Announces New Corporate Headquarters

July 26, 2011
iWatt Adds Kaj den Daas and Brian McDonald to Board of Directors

June 21, 2011
iWatt Debuts Industry’s First Driver to Power 32 Strings of LEDs for Direct & Segment-Edge Backlighting in Ultra-Thin LED TVs

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