用于高能效开关电源的同步整流控制器ncp4306.pdf

用于高能效开关电源的 同步整流控制器NCP4306 Public Information NCP4306 – 用步整流(SR)控制器用于高能效开关电源 (SMPS) The NCP4306 with precise turn-off threshold, extremely low turn-off delay time and high sink current capability of the driver allow the maximum synchronous rectification MosFET conduction time and enables maximum SMPS efficiency. Operates in CCM, DCM and QR for Flyback or in Forward and LLC Applications § 15ns(typ) turn off § CCM Operation Supported delay § efficiency maximized via § 7A Sink/ 2A drive high sink current current § Enhanced Operation for § dV/dt detection USB-PD Applications § GaN Transistor Driving Capability § Direct sensing voltage up to 200V § Operational Voltage up to 35 V § Precise True Secondary ZCD § Adjustable or Fixed Minimum ON-Time § Adjustable or Fixed Minimum OFF-Time with Ringing Detection § Adjustable Automatic Light Load Disable Mode § Maximum operation frequency Up to 1 MHz § Low Startup and Disable Current Consumption ~50 uA § § Notebook Adapters § available in TSOP-6 SOIC-8 package with IPT options § High Power Density AC/DC SMPS § USB Wireless Adapters § All SMPS with High Efficiency requirement RTM : end of Oct 2017 2 12/15/2017 Public Information NCP430x的交互参照   NCP4306 NCP4308 (43080) NCP4305 NCP4304 欠压锁定 (UVLO) 4/3.5 V 4.5/5 V和8/9 V 4.5/5 V和8/9 V 9/10 V DRV电流能力 2/7 A 4/8 A 4/8 A 2.5/5 A 感测电压最大值 200V 150V 200V 200V GaN驱动能力 有 有 有 无 导通传播延迟