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DS3668NNSCN/a2avaiQuad Fault Protected Peripheral Driver
DS3668NNSN/a2010avaiQuad Fault Protected Peripheral Driver


DS3668N ,Quad Fault Protected Peripheral DriverFeaturesgered by turn-on surge currents associated with certainn Output fault protectionkinds of lo ..
DS3668N ,Quad Fault Protected Peripheral DriverElectrical Characteristics (Notes 2, 3, 6)Symbol Parameter Conditions Min Typ Max UnitsV Input High ..
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DS3680 ,Quad Negative Voltage Relay DriverDS3680QUAD TELEPHONE RELAY DRIVERSLRS014C – MARCH 1986 – REVISED SEPTEMBER 1995D OR N PACKAGE• Desi ..
DS3680 ,Quad Negative Voltage Relay Drivermaximum ratings over operating free-air temperature range (unless otherwise noted)Supply voltage ra ..
DS3680D ,Quad Telephone Relay DriversDS3680QUAD TELEPHONE RELAY DRIVERSLRS014C – MARCH 1986 – REVISED SEPTEMBER 1995D OR N PACKAGE• Desi ..
EC103D1 ,SCR
EC103D1 ,SCR
EC103D1 ,SCR
EC2-12NU ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE
EC2-24 ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE
EC2-24NU ,COMPACT AND LIGHTWEIGHT, SMALL MOUNTING SIZE, HIGH BREAKDOWN VOLTAGE


DS3668N
Quad Fault Protected Peripheral Driver
DS3668
Quad Fault Protected Peripheral Driver
General Description

The DS3668 quad peripheral driveris designedfor those
applications where low operating power, high breakdown
voltage, high output current and low output ON voltage are
required. Unlike most peripheral drivers available,a unique
fault protected circuitis incorporatedon each output. When
the load current exceeds 1.0A(approximately)on any output
for more thana built-in delay time, nominally12 μs, that
outputwillbe shutoffbyits protection circuitry withno effect other outputs. This conditionwill prevail until that protec-
tion circuitryis resetby toggling the corresponding inputor
the enablepin lowforat least 1.0μs. This built-in delayis
providedto ensure that the protection circuitryis not trig-
geredby turn-on surge currents associated with certain
kindsof loads.
The DS3668’s inputs combine TTL compatibility with high
input impedance.In fact,its extreme low input current allowstobe driven directlybya MOS device. The outputs are
capableof sinking 600 mA each and offera 70V breakdown.
However,for inductive loads the output shouldbe clamped 35Vor lessto avoid latchup during turnoff (inductive
fly-back protection— referAN-213).An on-chip clamp diode
capableof handling 800 mAis providedat each outputfor
this purpose.In addition, the DS3668 incorporates circuitry
that guarantees glitch-free powerupor down operation and fail-safe feature which putsthe outputina high impedance
state whenthe inputis open.
The molded packageis specifically constructedto allow
increased power dissipation over conventional packages.
The four ground pins are directly connectedto the device
chip witha special copper lead frame. Whenthe quad driver soldered intoa PC board,the power ratingofthe device
improves significantly.
Applications
Relay drivers Solenoid drivers Hammer drivers Stepping motor drivers Triac drivers LED drivers High current, high voltage drivers Level translators Fiber optic LED drivers
Features
Output fault protection High impedance TTL compatible inputs High output current —600 mAper output No output latch-upat 35V Low output ON voltage (550 mVtyp@ 600 mA) High breakdown voltage (70V) Open collector outputs Output clamp diodesfor inductive fly-back protection NPN inputsfor minimal input currents(1μA typical) Low operating power Standard5V power supply Power up/down protection Fail-safe operation 2W power package Pin-for-pin compatible with SN75437
Connection Diagram
Dual-In-Line Package

DS005225-1
Top View

January 2001
DS3668
Quad
Fault
Protected
Peripheral
Driver
ic,good price


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