ME8302SG

General Description The ME8302 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 ME8302 provides accurate constant voltage, constant

current(CV/CC) regulation without requiring an Opto-coupler and secondary control circuitry. It also eliminates

the need of loop compensation circuitry while maintaining stability. The ME8302 achieves excellent regulation

 and high average efficiency, yet meets the requirement for no-load consumption less than 30mW. The ME8302

 has the built-in programmable cable voltage drop compensation function, which make it flexible to

 accommodate various cables with different gauges and lengths.

Features

●Primary side control for eliminating Opto-coupler and secondary CV/CC control circuitry

●30mW no-load input power

●Programmable output cable voltage drop compensation

●Compensation for external component temperature variations

●Flyback topology in DCM operation

●Random frequency adjustment to reduce system EMI

●Built-in soft start

●over voltage protection

●Short circuit protection

Applications

●Adapter/chargers for cell/cordless phones, PDAs, MP3 and other portable apparatus

●LED driver

●Standby and auxiliary power supplies

Package

 8-pin SOP8