NCP1344数据手册集成电路（IC）的ACDC转换器离线开关规格书PDF

描述 Description

The NCP1344 is a quasi-resonant controller (QR) which implements valley switching mode with valley lockout for improved efficiency and noise-free operation. The NCP1344 QR PWM controller is optimized for USB PD applications with the integration of high-voltage start-up, auto-tuning OCP, and low loss dynamic self-supply to reduce external BOM count.

特性 Features

• Auto-Tuning OCP
• OCP Adjusts with Variable Vout
• Low Loss Self-Bias (DSS)
• Enables wide output voltage range for USB PD
• Valley Switching with VLO
• Valley Lockout Option
• Quiet Skip
• Reduces Audible Noise in Skip Mode

应用 Application

• USB Power Delivery Adapters
• Battery Charging
• AC-DC Power Supply
• Notebook and Mobile Adapters
• E-Bike
• Display Power

简介

NCP1344属于集成电路（IC）的ACDC转换器离线开关。由制造生产的NCP1344AC DC 转换器，离线开关该系列是元器件级控制产品，用于构建将交流市电转换为直流电（通常电压大幅降低）的设备。集成和未集成系统主要开关元件的器件均包括在内。由于高输入输出电压比，以及此类系统中通常需要隔离，这些器件通常与外部变压器配合使用。尽管通常使用定制变压器来实现此用途，但也有许多专门用于此用途的库存产品，请参见“开关转换器，SMPS 变压器”标题。