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Renesas Electronics Corporation
Dimmable Single-Stage Digital LED Driver for 15W SSL Retrofit Bulb Applications

Package Information

CAD Model:View CAD Model
Pkg. Type:SOIC-8
Pkg. Code:
Lead Count (#):8
Pkg. Dimensions (mm):
Pitch (mm):1.27

Environmental & Export Classifications

Moisture Sensitivity Level (MSL)1
Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090

Product Attributes

Lead Count (#)8
Carrier TypeTape & Reel
Moisture Sensitivity Level (MSL)1
Optimal VIN (V)200 - 264
Protection FeaturesOVP, IOVP, UVLO, PCL/OCP, SRSC, Low Bleeder Loss Option
Pb (Lead) FreeYes
Advanced FeaturesPrimAccurate, Flickerless, EZ-EMI
ApplicationSolid State Lighting
Controller / IntegratedController
Dim Range (Max) (%)100
Dim Range (Min) (%)1
Dimmer Functions SupportedLeading Edge, Trailing Edge, No Dimmer Support
FunctionDimmable
Key FeaturesPrimAccurate, Flickerless, EZ-EMI
LED Current Accuracy (%)5
No Load Power (mW)300
Output Power (Min) (W)3
Output Power Max (W)15
Parametric CategorySolid State Lighting Driver ICs
Pass DeviceBJT
Peak Efficiency (%)82
Pitch (mm)1.27
Pkg. TypeSOIC-8
Power Factor Correction>0.92
PublishedYes
Qty. per Reel (#)2500
StagesSingle-Stage
Switching Frequency (KHz)90 - 90
Temp. Range (°C)-40 to +85°C

Description

The iW3609 is optimized for dimmable SSL retrofit bulbs requiring high power factor (PF), low total harmonic distortion, outstanding TRIAC dimmer capability, and low BOM cost. Designed for 15W applications, the iW3609 uses advanced digital control technology to detect the dimmer type, provide dynamic impedance to interface with the dimmer and control the LED brightness at the same time. A proprietary input current shaping option enables the iW3609 to balance the power loss of the bleeder circuit.

Renesas' patented PrimAccurate™ primary-side control eliminates the need for a secondary-side regulator and opto-isolator. The iW3609 further reduces the BOM cost by using low-cost bipolar junction transistors (BJTs), eliminating high-voltage electrolytic capacitors, and including built-in over-temperature protection (OTP) derating with no NTC resistor. The OTP derating feature enables continuous light output while protecting the LED driver by reducing output current drive to the LEDs during an over-temperature event.