C2470 RDFC controllers - overview
CamSemi’s C2470 family controls the company’s RDFC topology to create high efficiency, low cost SMPS solutions with single input voltage for a wide range of offline power conversion applications such as:
- external AC/DC charger/adaptor eg cordless phones, portable electric tool, mini adaptors.
- embedded PSU eg set-top boxes, audio products, domestic appliances.
These novel devices enable customers to achieve more energy-efficient power conversion, quickly and at low cost.
C2471 products cover applications rated at 1 to 6 W and C2472, C2743 and C2474 are rated for 6 to 40 W (up to 60 W @ 230 V). Click to access the latest datasheets.
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C2470 controllers beat ENERGY STAR requirements at the cost of a linear or less! |
Advantages:
- Cost effective solution - low system component count, simple circuits, fully optimised for high volume markets and low cost
- Energy-efficiency - high average efficiency and low standby power exceeds codes of conduct/regulations
- Low EMI – to meet FCC 68 and other standards with minimal components
- Naturally safe - high isolation & surge voltage withstand. No components sitting across high and low voltage sides of transformer and built-in safety features within the controller
Features:
- Highly integrated CMOS controller IC
- Drives low cost bipolar power transistors
- Resonant switching for high efficiency and low emissions
- Frequency optimised for power circuit parasitics
- IC protection for overload, over-temperature and under-voltage
Typical circuit for 6 to 40 W application
