iW3602 Datasheet | Renesas

i W3602 AC/DC Digital Power Controller for Dimmable LED Drivers 1.0 Features 2.0 Description - Isolated AC/DC offline 100VAC/230VAC LED driver - Line frequency ranges from 45Hz to 66Hz - Intelligent wall dimmer detection x Leading-edge dimmer x Trailing-edge dimmer The i W3602 is a high performance AC/DC offline power supply controller for dimmable LED luminaires, which uses advanced digital control technology to detect the dimmer type and phase. The dimmer conduction phase controls the LED brightness. The LED brightness is modulated by PWMdimming. The i W3602’s unique digital control technology eliminates visible flicker. x No-dimmer detected x Unsupported dimmer - Hybrid dimming scheme - Wide dimming range from 1% up to 100% The i W3602 can operate with all dimmer schemes including: leading-edge dimmer, trailing-edge dimmer, as well as other dimmer configurations such as R-type, R-C type or R-L type. When a dimmer is not present, the controller can automatically detect that there is no dimmer. - No visible flicker - Resonant control to achieve high efficiency, 85% without dimmer - Temperature pensated LED current - Small size design x Small size input bulk capacitor x Small size output capacitor x Small transformer The i W3602 operates in a quasi-resonant mode to provide high efficiency. The i W3602 provides a number of key built-in Features . The i W3602 uses advanced primaryside sensing technology to achieve excellent line and load regulation without secondary feedback circuitry. In addition, the i W3602’s pulse-by-pulse waveform analysis technology allows accurate LED current regulation. The i W3602 maintains stability over all operating conditions without the need for loop pensation ponents. Therefore, the i W3602 minimizes external ponent count, simplifies EMI design and lowers overall bill of materials cost. - Primary-side sensing eliminates the need for opto- isolator feedback and simplifies design 3.0 Applications - Tight LED current...