iW1678 Datasheet, PDF
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iW1678 Part Attribute
- Description The iW1678 is a high-performance AC/DC controller designed to drive an external power bipolar junction transistor (BJT) for peak current mode PWM flyback power supplies. Ideal for wall adapters in portable electronics and power supplies for consumer electronics, the iW1678 offers no-load power consumption less than 150mW, capable of being reduced down to 30mW with little effort, making it capable of meeting global energy efficiency standards. As a PrimAccurate™ controller, which uses primary-side control algorithms, the iW1678 does not need any direct secondary-side feedback components, eliminating the need for optocouplers, and reducing component count and solution cost. Additional features include Renesas' proprietary EZ-EMI™ technology, quasi-resonant control for optimal efficiency at heavy loads, cable and connector voltage drop compensation options, full protection from fault conditions and tiny packaging.
- Part No. iW1678
- Manufacturer 瑞萨-Renesas
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