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Renesas Electronics Corporation
Advanced, Single-Stage, LED Driver Offers Best Dimming Performance and Dimmer Compatibility with Low BOM for 25W Retrofit Bulbs

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 FeaturesPrimAccurate, EZ-EMI, Compact Design
Key FeaturesPrimAccurate, EZ-EMI, Compact Design
Optimal VIN (V)200 - 264
ApplicationSolid State Lighting
Controller / IntegratedController
Dim Range (Max) (%)100
Dim Range (Min) (%)1
Dimmer Functions SupportedLeading Edge, Trailing Edge, Digital
FunctionDimmable
LED Current Accuracy (%)5
Output Power (Min) (W)1
Output Power Max (W)25
Parametric CategorySolid State Lighting Driver ICs
Pass DeviceFET
Peak Efficiency (%)85
Pkg. TypeSOIC-8
Power Factor Correction>0.92
Protection FeaturesOVP, IOVP, SRSC, PCL/OCP, OTP
StagesSingle-Stage
Switching Frequency (KHz)200 - 200

Description

The iW3689 is a single-stage, high-performance SSL LED driver offering smooth, flicker- and shimmer-free dimming performance and exceptional compatibility with an ultra-wide range of phase-cut dimmers, including the most challenging TRIAC and digital dimmers.

Renesas' patented digital algorithms eliminate more than 20 components, including the external bleeder circuit, enabling integrated active biasing for high-performance dimming at a lower BOM cost compared to conventional bleeder circuits. The iW3689 also works with off-the-shelf inductors to further reduce the BOM.

Full protection features include Renesas' unique over-temperature protection (OTP) derating, which monitors the temperature inside the sealed LED bulb and seamlessly reduces the drive to the LEDs if the temperature rises above a safe operating threshold, it then restores brightness as the temperature falls. The iW3689 integrates the temperature sensor and allows the user to configure the OTP thresholds.

For higher power applications, see the iW3600 and iW3605 LED driver pages.