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L584 Datasheet(PDF) 1 Page - STMicroelectronics |
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L584 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 13 page  L584 November 1988 MULTIFUNCTION INJECTION INTERFACE PRELI MINARY DATA . DRIVES ONE OR TWO EXTERNAL DAR- LINGTONS . DUAL AND SINGLE LEVEL CURRENT CON- TROL . SWITCHMODE CURRENT REGULATION . ADJUSTABLE HIGH LEVEL CURRENT DURA- TION . WIDE SUPPLY RANGE (4.75 - 46V) . TTL-COMPATIBLE LOGIC INPUTS . THERMAL PROTECTION . DUMP PROTECTION DESCRIPTION The L584 is designed to drive injector solenoids in electronic fuel injection systems and generally in- ductive loads for automotive applications. The de- vice is controlled by two logic inputs and features switchmode regulation of the load current driving an external darlington and an auxiliary one for the cur- rent recirculation. A key feature of the L584 is flexi- bility. It can be used with a variety of darlingtons to match the requirements of the load and it allows both simple and two level current control. Moreover, DIP1 6 (12+ 2+ 2) ORDERING NUMBER : L584 the drive waveshape can be adjusted by external components. Other features of the device include dump protection, thermal shutdown, a supply vol- tage range of 4.75 - 46V and TTL-compatible inputs. The L584 is suppliedin a 16 lead Powerdip package which uses the four center pins to conduct heat to the PC board copper. BLOCK DIAGRAM 1/13 |
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Similar Description - L584 |
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