L482 Datasheet, PDF (1/11 Pages) STMicroelectronics – HALL.EFFECT PICKUP IGNITION CONTROLLER

L482
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
DIP16
DE S CRI P T IO N
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)
SO16
ORDERING NUMBERS : L482 (DIP16)
L482D1 (SO16)
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.
DIP16
SO16
November 1991
1/11