NCP1339数据手册开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS规格书PDF

描述 Description

The NCP1339 is a highly integrated quasi-resonant flyback controller capable of controlling rugged and high-performance off-line power supplies as required by adapter applications. With an integrated active X-cap discharge feature and power savings mode, the NCP1339 can enable no-load power consumption below 10 mW for 65 W notebook adapters.
The quasi-resonant current-mode flyback stage features a proprietary valley-lockout circuitry, ensuring stable valley switching. This system works down to the 6th valley and toggles to a frequency foldback mode to eliminate switching losses. When the loop tends to force below 25-kHz frequencies, the NCP1339 skips cycles to contain the power delivery.
To help build rugged converters, the controller features several key protective features: an internal brown-out, a non-dissipative Over Power Protection for a constant maximum output current regardless of the input voltage, a latched over voltage protection through a dedicated pin.

特性 Features

• Loss-free Adjustable Over Power Protection
• Limits the peak current according to input line voltage
• Latched / Autorecovery Timer-Based Overload Protection
• Short circuit protection for improved reliability
• Brown Out Protection
• Protects against drops in input mains voltage
• High voltage startup current source
• Provides a quick and lossless power-on sequence
• Active Input Filter Capacitor Discharge Circuitry
• Eliminates the need for a X2 resistors
• Latch input for OVP and OTP implementations
• Simple implementation of required protection functions
• Valley Switching Operation with Valley-Lockout
• Improved efficiency with noise immunity

应用 Application

• High Power Ac-Dc converters
• Ultra High Density Adapters
• Notebook Adapters
• Flat TV SMPS
• USB-Pd Adapters

简介

NCP1339属于开发板套件编程器的评估板-DC/DC与AC/DC（离线）SMPS。由制造生产的NCP1339评估板 - DC/DC 与 AC/DC（离线）SMPS该系列产品提供了一种方便的方法，可对开关模式电源转换所用的器件（包括 DC-DC 和 AC-DC 型）进行性能或特性评估。“稳压器”（包含内部电源开关装置）和“控制器”（设计为控制外部电源开关）之类的器件均包括在内。