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Auto IC LD497 Automotive Motorcycle Hall Ignition Controller IC Chip
Auto IC LD497 Automotive Motorcycle Hall Ignition Controller IC Chip

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Auto & Moto Ignition application Specific IC
Ref.:L497 TL497
Hall input& Automatically adjust dwell
100%New Original test

Automotive Hall Effect Pickup Ignition Controller IC

 

DESCRIPTION
The LD497 is an integrated electronic ignition controller for breakerless ignition systems using Hall

effect sensors. The device drives an NPN external darlington to control the coil current providing the

required stored energy with low dissipation. A special feature of the LD497 is the programmable

time for the recovery of the correct dwell ratio Td/T when the coil peak current fails to reach 94% of

the nominal value. In this way only one spark may have an energy less than 94% of the nominal one

during fast accelerationor cold starts.

FEATURES
*Direct driving of the external power darlington
*Coil current charging angle(dwell) control
*Programme coil current peaklimitation
*Programmable dwell recovery time when 94 %  nominal current not reached
*RPM Output
*Permanent conduction protection
*Overvoltage protection for exterrnal darlington
*Internal supply zener
*Reverse battery protection


Application Circuit

 

 

Technical Specifications

 

 

 

 

 

 

 

 

 

 

 

 

 

DANDONG HUAAO ELECTRONICS CO.,LTD

 

Address: No.64 Taoyuan street,Dandong Liaoning, China           Pc: 118002
Contact: Mr. Nan Li                          Mobile: +15942599631
Tel: +86-0415-6161121                     Fax: +86-0415-6179223 
Web: http://www.huaaoe.com           http://ha.en.alibaba.com

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