LD7535A数据手册Leadtrend中文资料规格书

描述 Description

The LD7535/LD7535A are low cost, low startup current, current mode PWM controllers with green-mode power- saving operation.The integrated functions include the leading-edge blanking of the current sensing, internal slope compensation and the tiny package of SOT-26. They provide the users a superior AC/DC power application of higher efficiency, low external component counts, and lower cost solution.Furthermore, LD7535/LD7535A features more protections like OLP (Over Load Protection) and OVP (Over Voltage Protection) to eliminate the external protection circuits. And to satisfy different designs, 2 versions of OVP levels are implemented as ---LD7535 --- 28.0V ± 1.5V.LD7535A --- 21.0V ± 1.5V.

特性 Features

·High-Voltage CMOS Process with Excellent ESD protection
·Very Low Startup Current (<20μA)
·Current Mode Control
·Non-audible-noise Green Mode Control
·UVLO (Under Voltage Lockout)
·LEB (Leading-Edge Blanking) on CS Pin
·Programmable Switching Frequency
·Internal Slope Compensation
·OVP (Over Voltage Protection) on Vcc Pin
·OLP (Over Load Protection)
·300mA Driving Capability

应用 Application

·Switching AC/DC Adaptor and Battery Charger
·Open Frame Switching Power Supply
·384X Replacement