iW3617
iW3617 is AC/DC Digital Power Controller manufactured by iWatt.
i W3617
AC/DC Digital Power Controller for High Power Factor Dimmable LED Drivers
1.0 Features
- - Isolated/non-isolated offline 120VAC/230VAC LED driver up to 25W output power
- - Wide line frequency ranges (from 45Hz to 66Hz)
- - Meets IEC61000-3-2 requirement
- - Total harmonic distortion < 15% with PF > 0.95
- - Wide dimmer patibility xx Leading-edge dimmer xx Trailing-edge dimmer xx Digital dimmer xx Occupancy sensors and timers
- - Under 20% output ripple current
- - Wide dimming range from 1% to 100%
- - Flickerless TM LED dimming
- - Resonant control to achieve high efficiency (typical > 85% without dimmer)
- - Over-temperature LED current foldback
- - Small solution size xx Two-stage topology enables small-size input and output filter capacitors xx 200k Hz maximum switching frequency enables small transformer xx Intelligent dimmer interface eliminates dedicated high-power bleeder
- - Primary-side sensing eliminates the need for...
