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L482N/a57avaiHALL鸈FFECT PICKUP IGNITION CONTROLLER


L482 ,HALL鸈FFECT PICKUP IGNITION CONTROLLERL482HALL–EFFECT PICKUP IGNITION CONTROLLER.DIRECT DRIVING OF THE EXTERNAL PO-WER DARLINGTON. COIL C ..
L482D1013TR ,HALL-EFFECT PICKUP IGNITION CONTROLLERBLOCK DIAGRAMTHERMAL DATASymbol Parameter ValueUnitR Thermal Resistance Junction-ambient (DIP16) Ma ..
L484 ,MAGNETIC PICKUP IGNITION CONTROLLERABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Reverse Battery Voltage – 14 VRV Dump Voltage ..
L484D1 ,MAGNETIC PICKUP IGNITION CONTROLLERABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Reverse Battery Voltage – 14 VRV Dump Voltage ..
L484D1013TR ,MAGNETIC PICKUP IGNITION CONTROLLERfeatures of the device include darlington over-CONTINUOUS COIL CURRENT PROTECTION.voltage protectio ..
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LB8106 ,Actuator Driver for Portable CD Playersfeatures a " V (typ) output up con-ou‘n +oun-oln'2+our:-‘ FGNDFGMDFGM:OUT3+our:—our»oun—Mt PMvertex ..
LB8106M ,Actuator Driver for Portable CD PlayersPin AssignmentThe LB8106M is a four-channel actuator driver fordriving the focus coil, tracking coi ..
LB8106M ,Actuator Driver for Portable CD PlayersOrdering number: EN 4105AMonolithic Digital k?L381 06MActuator Driver for Portable CD PlayersNo. 41 ..
LB8106M ,Actuator Driver for Portable CD Playersfeatures a " V (typ) output up con-ou‘n +oun-oln'2+our:-‘ FGNDFGMDFGM:OUT3+our:—our»oun—Mt PMvertex ..
LB8108 ,Actuator Driver for Portable CD PlayersOrdering number .' EN4946ANo. 4946AApplicationsThe LB8108M is an actuator driver for use in portabl ..
LB8108M ,Actuator Driver for Portable CD PlayersElectrical Characteristics at Ta = 25°C, V = 3 VCCParameter Symbol Conditions min typ max Unit[Powe ..


L482
HALL鸈FFECT PICKUP IGNITION CONTROLLER
L482
November 1991
HALL–EFFECT PICKUP IGNITION CONTROLLER DIRECT DRIVING OF THE EXTERNAL PO-
WER DARLINGTON. COIL CURRENT CHARGING ANGLE (DWELL)
CONTROL. COIL CURRENT PEAK VALUE LIMITATION. CONTINUOUS COIL CURRENT PROTECTION. CONDUCTION AND DESATURATION TIME
OUTPUT SIGNALS. PERMANENT CONDUCTION PROTECTION
RESET OUTPUT SIGNAL. OVERVOLTAGE PROTECTION FOR EXTER-
NAL DARLINGTON. LOAD DUMP PROTECTION
DESCRIPTION

The L482 is an integrated circuit designed for use
with an NPN darlington in breakerless ignition sy-
stems with hall-effect pickup sensors and high ener-
gy ignition coils.
It controls the energy stored in the ignition coil and
the desaturation time of the external darlington to
limit the power dissipation.
PIN CONNECTIONS (top views)

The L482 is also particularly suitable for use as igni-
tion control and driving stage in more sophisticated
car electronic systems which employ microproces-
sor circuits.
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BLOCK DIAGRAM
(*) Thermal resistance junction-aluminia with the device soldered on the middle of an aluminia supporting substrate measuring 15 x 20mm ;
0.65mm thickness with infinite heatsink.
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
L482

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PIN FUNCTIONS (refer to fig. 3 for DIP16 package)
L482

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(*) These pins refer only to the DIP package type.
For the SO 16 version the permanent conduction reset output signal is not available and the pin 9 becomes the current sensing input. Pin 10
replaces the pin 11 function, pin 11 becomes the power supply input and pin 12 is used as the signal ground.
ELECTRICAL CHARACTERISTICS (VS = 14 V, – 40°C ≤ Tj ≤ 125°C referred to application circuit of

figure 3 regarding DIP-16 package version)
PIN FUNCTIONS (continued)
L482

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ELECTRICAL CHARACTERISTICS (Continued)
Figure 1 : Main Waveforms.
APPLICATION INFORMATION
L482

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Figure 2 : Low Frequency Condition and Permanent Conduction Protection.
Figure 3 : Application circuit (DIP–16).
L482

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