概述：

ME8300是一款用于电池充电器和适配器的高性能AC/DC电源控制器。ME8300采用脉冲频率调制方法，断续模式的反激式电源。ME8300无需光耦和辅助控制外围电路，可提供高精度连续电压调整和连续电流调整。无需回路补偿电路。ME8300实现优异的高效率调整，在265V输出时无载荷功率小于200mW。ME8300采用SOP8封装模式。

特点：

-连续的电流和电压输出的原边反馈控制

-无需光耦、431和辅助连续电压和连续电流控制电路

-无需回路补偿电路

-线损补偿功能

-断续模式下反激电路拓扑结构

-随机调频减少系统电磁干扰

-可打开外部的NPN晶体管

-内置软启动功能

-过电压保护

-短路保护

典型应用：

-用于手机、无绳、PDA、MP3以及其它便携式设备的电源适配器和充电器

-备用和辅助电源

替换参考：

PINtoPIN兼容AP3708（本兼容仅供参考，具体应用前需咨询厂商工程师）

High Primary Side Control IC For Off-line Battery Chargers ME8300

General Description：

The ME8300 is a high performance AC/DC power supply controller for battery charger and adapter applications. The device uses Pulse Frequency Modulation (PFM) method to build discontinuous conduction mode (DCM) flyback power supplies. The ME8300 provides accurate constant voltage, constant current (CV/CC) regulation without re the opto-coupler and the secondary control circuitry. It also eliminates the need of loop compensation circuitry while maintaining stability. The ME8300 achieves excellent regulation and high power efficiency, the no-load power consumption is less than 200mW at 265VAC input. The ME8300 is available in SOP-8 package.

Features：

-Primary Side Control for Rectangular Constant Current and Constant Voltage Output

-Eliminates Opto-Coupler and Secondary CV/CC Control Circuitry

-Eliminates Control Loop Compensation Circuitry

-Output Cable Resistor Compensation

-Flyback Topology in DCM Operation

-Random Frequency Modulation to Reduce System EMI

-Valley Turn on of External Power NPN Transistor

-Built-in Soft Start

-Over Voltage Protection

-Short Circuit Protection

Typical Application：

-Adapters/Chargers for Cell/Cordless Phones,PDAs, MP3 and Other Portable Apparatus

-Standby and Auxiliary Power Supplies