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STMicroelectronics |
L585
CAR ALTERNATOR REGULATOR
........ ALTERNATOR VOLTAGECONTROL
COMPLETE FAULT DIAGNOSTICS
DRIVES 3 W LAMP DIRECTLY
LAMP SHORT CIRCUIT PROTECTION
SENSING INTERRUPT PROTECTION
100 V DUMP PROTECTION
300 V LOW ENERGY SPIKE PROTECTION
THERMAL PROTECTION
DIP16
DE SCRI PT I O N
The L585 is an integrated circuit designed for use
with an NPN darlington as a voltage regulator in a
threephase alternator charging system. It includes
fault diagnostic circuitry which drives a 3 W warning
lamp in fault conditions such as open or short circuit
connections. Protection against load dump tran-
sients, short circuits and low energy spikes is incor-
porated.
BLOCK DIAGRAM
SO16
ORDERING NUMBERS : L585 (DIP16)
L585D1 (SO16)
November 1991
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L585
PIN CONNECTION
(*) MUST BE LEFT FLOATING
ABSOLUTE MAXIMUM RATINGS
Symbol
VS
VD
Tj
Ptot
Tstg
Top
Parameter
Operating supply Voltage (through RS)
Dump Voltage
Junction Temperature Range
Power Dissipation at Tamb = 80°C
Junction and Storage Temperature Range
Operating Temperature Range
Value
28
100
– 40 to 150
1
– 55 to 150
– 40 to 125
Unit
V
V
°C
W
°C
°C
THERMAL DATA
Symbol
Parameter
Rth j-amb Thermal Resistance Junction-ambient (*) for DIP 16
Rth j-alumina(*) Thermal Resistance Junction-alumina for SO-16
Max
Max
Value
80
50
Unit
°C/W
°C/W
No te : Soldered on PC board that simulates an application with medium device density on board.
(*) Thermal resistance junction-pins with the chip soldered on the middle of an alumina supporting substrate measuring 15 ö 20 mm ; 0.65 mm
thickness and infinite heathsink.
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