Description

IK3466 is IC for AC/DC converter with build–in power switch with operating frequency 132 ± 8 kHz realized on the base of high-voltage BiCDMOS process.

IC performs driving of power built in MOSFET switch, quantity of energy transferred to load is regulated by means of MOSFET on-time. So output voltage practically doesn’t depend from load.

The IC is purposed for adapter battery chargers of the mobile phones, reserve power supply of PC, TV-sets, AC-adapters, electrical equipment control units, Integrated Services Digital Network (ISDN) or Digital Subscriber Line (DSL) network termination.

Features

■ Programmable line under-voltage detect circuit prevents power on/off glitches and minimizes quantity of external components

■ 132 kHz operation frequency

■ High output voltage stability

■ Simple ON/OFF control, no loop compensation needed

■ No load consumption < 50 mW with bias winding and < 250 mW without bias winding at 265 V (AC) input

■ High input (supply) voltage makes IC ideal for charger applications

■ High bandwidth provides fast turn on with no overshoot

■ Built-in current limit and thermal protection circuits provide high safety

■ Built-in automatic restart circuit provides short circuit and open loop protection

■ Undervoltage detection function