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A4401 Automotive Low Noise Vacuum Fluorescent Display Power Supply
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
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 con...