iW3630

iW3630 AC/DC Digital Power Controller for High Power Factor Analog and 0-10V Dimmable LED Drivers 1.0 Features ●● Isolated/non-isolated offline 100VAC/277VAC LED driver controller ●● Meets IEC61000-3-2 requirements ●● Total harmonic distortion < 15% with Power Factor > 0.95 ●● Analog input dimming level control ●● Built-in 0-10V isolation transformer driver ●● Under 10% output ripple current ●● Wide dimming range from 1% to 100% ●● FlickerlessTM LED dimming technology ●● Quasi-resonant control to achieve high efficiency (typical > 85%) ●● Small size xx Two-stage topology enables small-size input and output filter capacitors xx 200kHz maximum switching frequency enables small transformer ●● Primary-side sensing eliminates the need for opto-isolator feedback ●● Tight LED current regulation ●● Supports wide LED output voltage range ●● Multiple protection features: xx LED open-circuit and short-circuit protection xx Over-current protection xx Current sense resistor short-circuit protection xx AC line over-voltage/frequency protection 2.0 Description The iW3630 is a two-stage, high-performance AC/DC offline power supply controller for dimmable LED luminaires with analog dimming interface. It controls LED current based on analog input voltage on the dimming pin. It also has a built-in 0-10V isolation transformer driver which can work directly with 0-10V dimming system without adding extra driver circuit and micro-controller. The iW3630 uses iWatt’s unique digital FlickerlessTM te...