NCP4303-D 同步整流NCP4303-D 同步整流.pdf

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NCP4303-D 同步整流NCP4303-D 同步整流.pdf

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NCP4303-D 同步整流NCP4303-D 同步整流

NCP4303A, NCP4303B Secondary Side Synchronous Rectification Driver for High Efficiency SMPS Topologies The NCP4303A/B is a full featured controller and driver tailored to control synchronous rectification circuitry in switch mode power supplies. Thanks to its versatility, it can be used in various topologies MARKING such as flyback, forward and Half Bridge Resonant LLC. DIAGRAM The combination of externally adjustable minimum on and off times 8 helps to fight the ringing induced by the PCB layout and other SOIC−8 4303x 8 parasitic elements. Therefore, a reliable and noise less operation of the D SUFFIX ALYW SR system is insured. 1 CASE 751 1 The extremely low turn off delay time, high sink current capability of the driver and automatic package parasitic inductance compensation system allow to maximize synchronous rectification NCP MOSFET conduction time that enables further increase of SMPS DFN8 4303x efficiency. CASE 488AF ALYW Finally, a wide operating VCC range combined with