Package Information
| CAD Model: | View CAD Model |
| Pkg. Type: | QFN |
| Pkg. Code: | |
| Lead Count (#): | 12 |
| Pkg. Dimensions (mm): | 4 x 4 |
| Pitch (mm): | 0.65 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 1 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
Product Attributes
| Lead Count (#) | 12 |
| Carrier Type | Tape & Reel |
| Moisture Sensitivity Level (MSL) | 1 |
| Advanced Features | AC Direct Phase Cut Dimming, No Magnetics, No RC Damper, No External Bleeder, Optimized for 15W |
| Key Features | AC Direct Phase Cut Dimming, No Magnetics, No RC Damper, No External Bleeder, Optimized for 15W |
| Power Factor Correction | >0.7 |
| Pb (Lead) Free | Yes |
| Application | Solid State Lighting |
| Controller / Integrated | Controller |
| Dim Range (Max) (%) | 100 |
| Dim Range (Min) (%) | 1 |
| Dimmer Functions Supported | Leading Edge, Trailing Edge, Digital |
| Function | Dimmable |
| LED Current Accuracy (%) | 3 |
| MOQ | 1500 |
| Optimal VIN (V) | 90 - 130 |
| Output Power (Min) (W) | 3 |
| Output Power Max (W) | 10 |
| Parametric Category | Solid State Lighting Driver ICs |
| Pass Device | FET |
| Pitch (mm) | 0.65 |
| Pkg. Dimensions (mm) | 4 x 4 |
| Pkg. Type | QFN |
| Protection Features | OVP, OCP, UVLO, Internal OTP |
| Qty. per Reel (#) | 1500 |
| Stages | Linear |
| Temp. Range (°C) | -40 to +85°C |
Resources for iW3989
Description
The iW3989 AC direct LED driver offers a high-performance, low BOM cost approach for phase-cut dimming SSL LED driver applications by integrating a high-voltage MOSFET and eliminating the need for magnetics, an RC damper and an external bleeder. Ideal for downlights and replacement bulbs such as GU10, PAR, A19, and BR types, the device can operate with virtually all dimmer types including leading-edge, trailing-edge and smart dimmers, while providing a very fast dimmer transient response.
The iW3989 achieves efficiency similar to a switch-mode converter without utilizing magnetics for energy storage, which addresses the thermal challenges of SSL lighting without adding unnecessary cost. And by removing the magnetic component, there is no audible noise when interfacing with a TRIAC dimmer, providing a noise-free, flicker-free and robust solution that approaches the feel of an incandescent lighting experience.