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L497 - HALL EFFECT PICKUP IGNITION CONTROLLER

Description

The L497is an integratedelectronicignition controller for breakerless ignition systemsusing Hall effect sensors.

The device drives an NPN external darlington to control the coil current providingthe required stored energy with low dissipation.

Features

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Full PDF Text Transcription

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L497 HALL EFFECT PICKUP IGNITION CONTROLLER . . . . . . . . . DIRECT DRIVING OF THE EXTERNAL POWER DARLINGTON COIL CURRENT CHARGING ANGLE (dwell) CONTROL PROGRAMME COIL CURRENT PEAK LIMITATION PROGRAMMABLE DWELL RECOVERY TIME WHEN 94 % NOMINAL CURRENT NOT REACHED RPM OUTPUT PERMANENT CONDUCTION PROTECTION OVERVOLTAGE PROTECTION FOR EXTERNAL DARLINGTON INTERNAL SUPPLY ZENER REVERSE BATTERY PROTECTION DIP16 SO16 ORDERING NUMBERS : L497B (DIP16) L497D1 (SO16) DESCRIPTION The L497is an integratedelectronicignition controller for breakerless ignition systemsusing Hall effect sensors. BLOCK DIAGRAM The device drives an NPN external darlington to control the coil current providingthe required stored energy with low dissipation.
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