參數(shù)資料
型號： L584
廠商： 意法半導體
英文描述： MULTIFUNCTION INJECTION INTERFACE
中文描述： 多功能注射液界面
文件頁數(shù)： 1/13頁
文件大?。?/td> 178K
代理商： L584
L584
November 1988
MULTIFUNCTIONINJECTION INTERFACE
.
DRIVES ONE OR TWO EXTERNAL DAR-
LINGTONS
.
DUAL AND SINGLE LEVEL CURRENT CON-
TROL
.
SWITCHMODE CURRENT REGULATION
.
ADJUSTABLE HIGH LEVELCURRENT DURA-
TION
.
WIDE SUPPLY RANGE (4.75 - 46V)
.
TTL-COMPATIBLELOGIC INPUTS
.
THERMAL PROTECTION
.
DUMP PROTECTION
PRELIMINARY DATA
DESCRIPTION
The L584 is designedto drive injectorsolenoidsin
electronic fuel injection systems and generally in-
ductive loads for automotive applications. The de-
vice is controlled by two logic inputs and features
switchmoderegulationof theloadcurrentdriving an
externaldarlington andan auxiliary onefor the cur-
rent recirculation.A key featureof the L584 is flexi-
bility. It can be usedwith a variety of darlingtonsto
match the requirements of the load and it allows
bothsimpleandtwolevelcurrentcontrol.Moreover,
DIP16
(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-
tagerangeof4.75-46VandTTL-compatibleinputs.
TheL584is suppliedina16leadPowerdippackage
which uses the four center pins to conduct heat to
the PC board copper.
BLOCK DIAGRAM
1/13
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