Package Information
| CAD Model: | View CAD Model |
| Pkg. Type: | SOIC-8 |
| Pkg. Code: | |
| Lead Count (#): | 8 |
| Pkg. Dimensions (mm): | |
| Pitch (mm): |
Environmental & Export Classifications
| Pb (Lead) Free | |
| Moisture Sensitivity Level (MSL) | |
| ECCN (US) | |
| HTS (US) |
Product Attributes
| Lead Count (#) | 8 |
| Advanced Features | PrimAccurate, Single-Stage Buck, Supports Wide DC Input Voltage, Internal OTP, 100 ms Light-off Delay |
| Key Features | PrimAccurate, Single-Stage Buck, Supports Wide DC Input Voltage, Internal OTP, 100 ms Light-off Delay |
| Protection Features | OVP, OCP, UVLO, Internal OTP |
| Application | Solid State Lighting |
| Controller / Integrated | Controller |
| Dim Range (Max) (%) | 100 |
| Dim Range (Min) (%) | 1 |
| Dimmer Functions Supported | PWM Dimming, 0-10V (with iW339) |
| Function | Dimmable |
| LED Current Accuracy (%) | 3 |
| Optimal VIN (V) | 100 - 100 |
| Output Power (Min) (W) | 3 |
| Output Power Max (W) | 150 |
| Parametric Category | Solid State Lighting Driver ICs |
| Pass Device | FET |
| Pkg. Type | SOIC-8 |
| Published | Yes |
| Stages | Single-Stage |
| Switching Frequency (KHz) | 72 - 90 |
Resources for iW3637
Description
The iW3637 high-voltage, second-stage buck LED driver provides constant current to LEDs directly from DC power supplies. It supports non-isolated buck and flyback converter topologies to post-regulate from a PFC AC/DC boost converter, minimizing low-frequency output ripple current and eliminating virtually all flicker in the system, even down to 1%.
A wide range of DC input voltages simplifies design by enabling the use of just one second-stage driver across any commercial lighting product portfolio.