Secondary Side Controllers | NCP43080
概览
NCP43080 是一款用于开关模式电源的同步整流器控制器。该控制器可实现反激、准谐振反激和 LLC 拓扑结构的高能效设计。 外部可调节最短开关时间间隔时段提供了驱动各种 MOSFET 封装类型和 PCB 布局的灵活性。SR 系统的可靠低噪音运行由于自同步功能而得以保证。NCP4308 还利用驱动器到 MOSFET 的开尔文联接实现了满载下的高能效运行。 该驱动器精确的关断阈值、极低的关断延迟时间和高接受电流功能可实现最长的同步整流 MOSFET 导通时间。该高准确性驱动器和 5V 门极箝位使其非常适用于直接驱动 GaN 器件。 为了提供 PCB 布局方面的更大灵活性，此产品有两种版本。NCP4308 没有 LLD 功能，NCP43080 有 LLD 功能
- Notebook Adapters
- High Power Density AC/DC Power Supplies (Cell Phone Chargers)
- LCD TVs
- All SMPS with High Efficiency Requirements
- SR for Flyback & LLC
- Notebook Adapters
- Smartphone Chargers
- Tablet Chargers
- AC-DC Power Adapters
- LCD TVs
- Ultra High Density Adapters
- Self−Contained Control of Synchronous Rectifier in CCM, DCM and QR for Flyback or LLC Applications
- Precise True Secondary Zero Current Detection
- Rugged Current Sense Pin (up to 150 V)
- Adjustable Minimum ON−Time
- Adjustable Minimum OFF-Time with Ringing Detection
- Adjustable Maximum ON−Time for CCM Controlling of Primary QR Controller
- Operating Voltage Range up to VCC = 35 V
- 8 A / 4 A Peak Current Sink / Source Drive Capability
- GaN Transistor Driving Capability (options A and C)
- Low Startup Current Consumption
- Maximum Operation Frequency up to 1 MHz
- Improved Robust Self Synchronization Capability
- These are Pb−Free Devices
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