A4401KLTR-T

VFD DRVR 40V 8Pin SOIC N T/R

Description

This device provides all the necessary control functions to provide the power rails for driving a vacuum fluorescent display VFD using minimal external components. The power supply is based on a quasi-resonant, discontinuous flyback converter, operating near the critical conduction boundary. A novel adaptive turn-on control scheme is used to optimize the turn-on and turn-off phase of the MOSFET, to reduce EMI emissions while minimizing switching losses.

Features and Benefits

▪Multiple output regulator

▪7 to 40 V input supply

▪Low EMI conducted and radiated emissions

▪Adaptive quasi-resonant turn on/off control

▪Minimal number of external components

▪Enable input which can be driven with respect to the battery voltage