Package Information
| CAD Model: | View CAD Model |
| Pkg. Type: | SOIC-14 |
| Pkg. Code: | |
| Lead Count (#): | 14 |
| Pkg. Dimensions (mm): | |
| Pitch (mm): | 1.27 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 1 |
| Pb (Lead) Free | Yes |
| ECCN (US) | EAR99 |
| HTS (US) | 8542.39.0090 |
Product Attributes
| Lead Count (#) | 14 |
| Carrier Type | Tape & Reel |
| Moisture Sensitivity Level (MSL) | 1 |
| Dimmer Functions Supported | No Dimmer Support |
| Pb (Lead) Free | Yes |
| Application | Solid State Lighting |
| Controller / Integrated | Controller |
| Dim Range (Max) (%) | 100 |
| Dim Range (Min) (%) | 1 |
| Function | Dimmable |
| Key Features | PrimAccurate, Flickerless |
| LED Current Accuracy (%) | 5 |
| MOQ | 2500 |
| No Load Power (mW) | 300 |
| Optimal VIN (V) | 120 - 277 |
| Output Power (Min) (W) | 5 |
| Output Power Max (W) | 120 |
| Parametric Category | Solid State Lighting Driver ICs |
| Pass Device | FET |
| Pitch (mm) | 1.27 |
| Pkg. Type | SOIC-14 |
| Protection Features | OVP, IOVP, UVLO, PCL/OCP, OTP, SRSC |
| Qty. per Reel (#) | 2500 |
| Stages | Two-Stage |
| Switching Frequency (KHz) | 200 - 200 |
| Temp. Range (°C) | -40 to +85°C |
Resources for iW3631
Description
The iW3631 two-stage LED driver is a dimmable digital offline PWM controller for solid-state lighting applications up to 120W with high power factor (PF >0.95) and low THD (<10%). It features a built-in driver for isolation transformers that enables direct, 0-10V dimming without the need for an external MCU and driver circuit, reducing cost and complexity. The iW3631 can also be implemented to support a PWM dimming interface to simplify use in wireless SSL applications.
The iW3631 operates in a quasi-resonant mode to provide high efficiency and uses Renesas' PrimAccurate™ advanced primary-side sensing technology to achieve excellent line and load regulation without secondary feedback components. The digital control algorithms used by the iW3631 maintain stability over all operating conditions without the need for any external loop compensation components, minimizing the BOM cost.
The iW3631 can be paired with Renesas' iW337 3-in-1 dimming interface.
