A4401 Datasheet Automotive Quasi-Resonant Flyback Controller

Manufacturer: Allegro Micro Systems

A4401 automotive quasi-resonant flyback controller by Allegro Micro Systems - Datasheet Preview

Datasheet Details

Part number	A4401
Manufacturer	Allegro Micro Systems
File Size	429.87 KB
Description	Automotive Quasi-Resonant Flyback Controller
Datasheet	A4401 Datasheet

General 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.

Overview

www.DataSheet4U.com A4401 Automotive Low Noise Vacuum Fluorescent Display Power.

Key Features

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.

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