LD7577JA中文资料AC-DC控制器 : 隔离式高压启动控制/驱动器数据手册Leadtrend规格书

描述 Description

The LD7577JA integrated several functions of protections, and EMI-improved solution in a SOP-7, SOP-8/or DIP-8 package. It minimizes the component counts and the circuit space, and it’s perfect for the low cost of applications.
It provides functions of low startup current, green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope compensation.  Also, the LD7577JA features more protections like OLP (Over Load Protection), OVP (Over Voltage Protection), and brownout protection to prevent the circuit being damaged from the abnormal conditions. 
Furthermore, the LD7577JA features frequency trembling to suppress the noise and is an excellent solution for EMI filter design. 

特性 Features

·High-Voltage (500V) Startup Circuit
·Current Mode Control
·Non-Audible-Noise Green Mode Control
·UVLO (Under Voltage Lockout)
·LEB (Leading-Edge Blanking) on CS Pin
·Internal Frequency Trembling
·Internal Slope Compensation
·Internal Over Current compensation
·OVP (Over Voltage Protection) on Vcc
·AC Input OVP (Over Voltage Protection)
·OLP (Over Load Protection)
·Brownout Protection
·500mA Driving Capability

应用 Application

·Switching AC/DC Adaptor and Battery Charger
·Open Frame Switching Power Supply
·LCD Monitor/TV Power