L482/1 STMicroelectronics, L482/1 Datasheet

Motor / Motion / Ignition Controllers & Drivers Hall Effect Control

L482/1

Manufacturer Part Number
L482/1
Description
Motor / Motion / Ignition Controllers & Drivers Hall Effect Control
Manufacturer
STMicroelectronics
Type
Hall Effect Pickup Ignition Controllerr
Datasheet

Specifications of L482/1

Product
Electronic Ignition Drivers
Operating Supply Voltage
6 V to 28 V
Supply Current
25 mA
Mounting Style
Through Hole
Package / Case
PDIP-16
Operating Temperature
- 55 C to + 150 C
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
July 2003
.
.
.
.
.
.
.
.
DESCRIPTION
The L482 is an integrated circuit designed for use
with an NPN darlington in breakerless ignition sys-
tems with hall-effect pickup sensors and high energy
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)
DIRECT
POWER 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
®
DRIVING
HALL–EFFECT PICKUP IGNITION CONTROLLER
DIP16
OF
THE
EXTERNAL
The L482 is also particularly suitable for use as ig-
nition control and driving stage in more sophisti-
cated car electronic systems which employ
microprocessor circuits.
ORDERING NUMBERS : L482 (DIP16)
SO16
DIP16
SO16
L482D1 (SO16)
L482
1/11

Related parts for L482/1

L482/1 Summary of contents

Page 1

HALL–EFFECT PICKUP IGNITION CONTROLLER . DIRECT DRIVING OF . POWER 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 ...

Page 2

L482 ABSOLUTE MAXIMUM RATINGS Symbol V Reverse Battery Voltage R V Dump Voltage D P Power Dissipation at T tot Junction and Storage Temperature Range j stg BLOCK DIAGRAM THERMAL DATA Symbol R Thermal Resistance Junction-ambient (DIP16) ...

Page 3

PIN FUNCTIONS (refer to fig. 3 for DIP16 package) N Name 1 CONDUCTION TIME SIGNAL 2 HALL-EFFECT INPUT 3 DWELL CONTROL 4 DWELL CONTROL TIMER 5 HALL SENSOR SUPPLY 6 DESATURATION TIME SIGNAL 7 REFERENCE VOLTAGE 8 PERMANENT CONDUCT. PROTECTION ...

Page 4

L482 PIN FUNCTIONS (continued) N Name 13 GROUND 14 DRIVER COLLECTOR 15 OVERVOLTAGE LIMITATION 16 DRIVING STAGE OUTPUT (*) These pins refer only to the DIP package type. For the SO 16 version the permanent conduction reset output signal is ...

Page 5

ELECTRICAL CHARACTERISTICS (Continued) Symbol Parameter t Permanent PC Protection Time (pin 8) (see fig Charging Angle Output Voltage 1 LOW HIGH V Desat. Time Output 6 Voltage I Desat. Time Leakage Current 6L (pin6) I Permanent Conduction Reset ...

Page 6

L482 Figure 2 : Low Frequency Condition and Permanent Conduction Protection. Figure 3 : Application circuit (DIP–16). 6/11 ...

Page 7

Figure 4 : Application Circuit (SO–16). CIRCUIT OPERATION The L482 control the conduction time (dwell) and the peak value of the primary current in the coil over the full range of operating conditions. The coil current is limited to a ...

Page 8

L482 DESATURATION TIMES IN LOW AND HIGH FRE- QUENCY OPERATION. Due to the upper limit of the voltage range of pin 3, if the components of fig are used, below 10Hz (300RPM for a 4 cylinder en- gine) ...

Page 9

DIM. MIN. TYP. MAX. MIN. a1 0.51 0.020 B 0.77 1.65 0.030 b 0 8.5 e 2.54 e3 17.78 F 7.1 I 5.1 L 3.3 Z 1.27 inch MECHANICAL DATA TYP. MAX. 0.065 0.020 ...

Page 10

L482 mm DIM. MIN. TYP. MAX. MIN. A 1.75 a1 0.1 0.25 0.004 a2 1.6 b 0.35 0.46 0.014 b1 0.19 0.25 0.007 C 0.5 c1 45˚ (typ.) D (1) 9.8 10 0.386 E 5.8 6.2 0.228 e 1.27 e3 ...

Page 11

... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMi- croelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...

Related keywords