LD7765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 LD7765 is a Green Mode PWM IC, featuring X-cap discharge functions to reduce the discharge resistor loss in less component counts.The LD7765 provides HV start-up, green-mode power-saving operation, internal slope compensation and Soft-start functions which could minimize the power loss and enhance the system performance.With complete protection as OLP/ OVP/ OTP and brown-in/out, this chip prevents the circuit from being damaged in abnormal conditions.

特性 Features

·High-Voltage (500V) Startup Circuit on HV pin
·Brown-in/out Function on HV pin
·X-Cap Discharge function on HV pin
·Frequency Trembling for EMI improve
·Green Mode Control for Power Saving
·Current Mode control with Slope Compensation
·OVP (Over Voltage Protection) on Vcc
·OLP (Over Load Protection)
·OTP (Over temperature protection)
·Soft Start
·Soft Driving
·+500mA/-800mA Driving Capability

应用 Application

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