LD7751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 LD7751 integrates several functions of protections, and EMI-improved solution in a SOP-7, SOP-8 or DIP-8 package to minimize the component counts and the circuit space.The device provides functions of low startup current, green-mode power-saving operation, leading-edge blanking of the current sensing and internal slope compensation.Also, the LD7751 features more protections like OLP (Over Load Protection), and OVP (Over Voltage Protection) to prevent the circuit being damaged under the abnormal conditions.The LD7751 features built-in auto-recovery function for OVP on Vcc pin and OLP.

特性 Features

• High-Voltage (500V) Startup Circuit
• Current Mode Control
• Green Mode Control
• UVLO (Under Voltage Lockout)
• LEB (Leading-Edge Blanking) on CS Pin
• Internal Frequency Swapping
• Internal Slope Compensation
• Internal Over Current Protection
• OVP (Over Voltage Protection) on Vcc
• OLP (Over Load Protection)
• 500mA Driving Capability

应用 Application

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