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Product Detailed Parameters
- Description：HIGH PERFORMANCE DIGITAL INTEGRA
- Series：-
- Mfr：Renesas Electronics Operations Services Limited
- Package：Tape & Reel (TR)
- Type：DC DC Controller
- Topology：Flyback, Step-Down (Buck)
- Internal Switch(s)：No
- Number of Outputs：1
- Voltage - Supply (Min)：-
- Voltage - Supply (Max)：-
- Voltage - Output：-
- Current - Output / Channel：-
- Frequency：200kHz
- Dimming：Analog, PWM
- Applications：Commercial & Industrial Lighting
- Operating Temperature：-
- Mounting Type：Surface Mount
- Package / Case：14-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：14-SOIC
- Grade：-
- Qualification：-
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Overview
The IW3700-21 is a high-performance digital integrated Power Factor Correction (PFC) and Flyback controller designed for LED driver applications. It utilizes Boost and Flyback topologies to manage power conversion efficiently. The device operates at a switching frequency of 200 kHz and is housed in an SOIC-14 surface-mount package. This component belongs to the iW3700 series, manufactured by Renesas Electronics.
Feature Summary
- Integrates digital control for both PFC and Flyback stages within a single IC
- Optimized for high-efficiency LED lighting driver implementations
- Supports SMD/SMT installation for automated manufacturing processes
Applications
- LED lighting driver systems requiring integrated power management
- Industrial digital AC/DC power conversion solutions
- High-power factor lighting applications with low total harmonic distortion requirements
Procurement Notes
Availability for the IW3700-21 is currently restricted. Distributors indicate that this part number may not be stocked or available for immediate shipment in all regions. Procurement should verify current supply status directly with authorized channels, as the product may be subject to limited sales or factory special orders rather than standard inventory distribution.
Selection Notes
Engineers selecting this component should prioritize designs requiring a combined PFC and Flyback solution to reduce bill-of-materials complexity. The 200 kHz operating frequency offers a balance between size and efficiency. Ensure the application environment supports the SOIC-14 package constraints and that the digital control architecture aligns with the specific dimming and regulation needs of the target LED load.
Part Context
The IW3700-21 is part of the iW3700 family from Renesas Electronics, which focuses on advanced power management for lighting. This series targets applications demanding high reliability and performance in compact form factors. The device represents a shift towards digital integration in traditional analog power stages, allowing for precise control over power factor and output regulation in modern LED systems.
Replacement Considerations
The IW3700-20 is a related variant within the same iW3700 series. Designers considering alternatives should evaluate functional compatibility regarding the Boost and Flyback topology integration. Verify pinout and software configuration requirements before substituting, as suffix differences may imply variations in packaging or specific feature sets.
