L585D1

L585 CAR ALTERNATOR REGULATOR . . . . . . . . ALTERNATOR VOLTAGE CONTROL 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 DESCRIPTION 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 transients, short circuits and low energy spikes is incorporated. BLOCK DIAGRAM SO16 ORDERING NUMBERS : L585 (DIP16) L585D1 (SO16) November 1991 1/9 L585 PIN CONNECTION (*) MUST BE LEFT FLOATING ABSOLUTE MAXIMUM RATINGS Symbol VS VD Tj Ptot Tstg Top Dump Voltage Junction Temperature Range Power Dissipation at Tamb = 80°C Junction and Storage Temperature Range Operating Temperature Range Parameter Operating supply Voltage (through R S) Value 28 100 – 40 to 150 1 – 55 to 150 – 40 to 125 Unit V V °C W °C °C THERMAL DATA Symbol Parameter Max Max Value 80 50 Unit °C/W °C/W Rth j-amb Thermal Resistance Junction-ambient (*) for DIP 16 Rth j-alumina(*) Thermal Resistance Junction-alumina for SO-16 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 mea...