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ACS302-5T3
THREE LINES AC SWITCH ARRAY
ACS302-5T3THREE LINES AC SWITCH ARRAY THREE HIGH VOLTAGE AC SWITCH ARRAY BLOCKING VOLTAGE: VDRM /VRRM= 500V CLAMPING VOLTAGE: VCL= 600V NOMINAL CONDUCTINGCURRENT PER LINE:
IT(RMS)= 0.2A NOMINAL CONDUCTING CURRENT FOR
TOTAL ARRAY:
IT(RMS)= 0.4A GATE TRIGGERING CURRENT: IGT <5mA
FEATURESThe ACS302 belongsto the AC line switch family
built around the ASD™ concept. This high
performance device inludes3 bidirectionnal AC
switches able to control an 0.2A resistive or
inductive load device.
Each ACS™ switch embedsa high voltage
clamping structureto absorb the inductive turnoff
energy anda gate level shifter driverto separate
the digital controller from the main switch.Itis
triggered witha negative gate current flowing out the gate pin.
DESCRIPTION Needsno external overvoltage protection Enables equipment to meet IEC61000-4-5
standard Interfaces directly witha microcontroller Eliminates any stressing gate kick back on the
microcontroller Array structure: design simplified, increase
reliability and space saving aspects Mountingin SO-20 package enables the device meet IEC335-1 standard
BENEFITS
FUNCTIONAL DIAGRAMASD™ Switch Family AC on-off static switching in appliance &
industrial control systems Driveof low power high inductiveor resistive
loads like: relay, valve, solenoid, dispenser pump, fan, micro-motor low power lamp bulb, door lock
MAIN APPLICATIONSASD andACS aretrademarksof STMicroelectronics.
PIN-OUT
ACS302-5T3
Note1: accordingtotest describedby IEC61000-4-5 standardand figure3.
ABSOLUTE RATINGS (limiting values)
SWITCH GATE CHARACTERISTICS (maximum values)
THERMAL RESISTANCES
ELECTRICAL CHARACTERISTICS
ACS302-5T3
ELECTRICAL CHARACTERISTICSThe ACS302 deviceis well adaptedto washing
machines, dishwashers, tumble driers, refrigera-
tors, water heaters, and cookwares.It has been
designed especially to switch ON& OFF low
power loads suchas solenoids, valves, relays, mi-
cro-motors, pumps, fans, door locks and low
power lamp bulbs.
Pin COM: Common drive reference,to connect the power line neutral
PinG: Switch Gate inputto connectto the digital
controller througha resistor
Pin OUT: Switch Output,to connectto the load
Each ACS™ switchis triggered witha negative
gate current flowing outof the gate pinG.It canbe
driven directly by the digital controller througha
resistor as shown on the typical application
diagram. No protection devices are required
between the gates and common terminals.
LINE SWITCH BASIC APPLICATION
TYPICAL APPLICATION DIAGRAM appliances systems, this ACS™ switch intendsto drive low power loadsin full cycle ON/ OFF mode.
Thankstoits thermal and turnoff commutation performances, the ACS302-5TA switchis ableto drive
three loadsupto 0.2A each, as,for example, two water valves anda door lockina dishwasher, without any
additionnal turn-off snubber.
ACS302-5T3 the endof the last conduction half-cycle, the load current reaches the holding current levelIH, and the
ACS™ switch turns off. Becauseof the inductanceLof the load, the current flows through the avalanche
diodeD and decreases linearlyto zero. During this time, the voltage across the switchis limitedto the
clamping voltage VCL.
The energy storedin the inductanceof the load depends onthe holding current IHand the inductance (upto H);it can reach about20 mJ andis dissipatedin the clamping diode section thatis especially designed
for that purpose.
HIGH INDUCTIVE SWITCH-OFF OPERATION
Fig.1: Turn-off operationof the ACS302 switch
with an electro valve: waveformof the pin OUT
current IOUT& voltage VOUT.
Fig.2: ACS302 switch static characteristic.
The ACS302 switchis ableto withstand safely the AC line transient voltages eitherby clamping the low en-
ergy spikesorby breaking over under high energy shocks.
The test circuitof the figure3is representativeof the final ACS™ application andis also usedto stress the
ACS switch accordingto the IEC61000-4-5 standard conditions. Thanksto the load, the ACS™ switch
withstands the voltage spikesupto2kV above the peak line voltage.It will break over safely evenon resis-
tive load where the turnon current riseis highas shownon figure4. Such non repetitive test canbe done timeson each AC line voltage polarity.
LINE TRANSIENT VOLTAGE RUGGEDNESS
Fig.3: Overvoltage ruggedness test circuit for
resistive and inductive loads according to
IEC61000-4-5 standard.= 150Ω,L= 5μH, VPP= 2kV.
Fig.4: Current and Voltageof the ACS™ during
IEC61000-4-5 standard test withR=150Ω,L=5μH
&VPP= 2kV.
ACS302-5T3
P(W)0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20
Fig.5: Maximum power dissipation versus RMS
on-state current (per switch).
0.45 25 50 75 100 125
(A)T(RMS)
Fig. 6: RMS on-state current versus ambient
temperature.
K=[Z / R ]th(j-a) th(j-a)1.E-03
1.E-02
1.E-01
1.E+00
1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 1.E+01 1.E+02 1.E+03
Fig.7: Relative variationof thermal impedance
junctionto ambient versus pulse duration.
[T] / I [T=25°C]GTj GTjFig.8: Relative variationof gate trigger current
versus junction temperature (typical value).
,I [T] / I,I[T =25°C]LHjLHjFig.9: Relative variationof holding and latching
current versus junction temperature (typical
values).
(A)TSM 10 100 1000
Fig. 10: Surge peak on-state current versus
number of cycles.
ACS302-5T3 (A),I²t(A²s)TSM0.01 0.10 1.00 10.00
Fig. 11: Non-repetitive surge peak on-state
currentfora sinusoidal pulse with width tp<10ms,
and corresponding valueofI2t.
(A)TM0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Fig. 12: On-state characteristics (maximum
values).
(dI/dt) [T] / (dI/dt) [T=110°C]cj cj3.0 20406080 100 120
Fig. 13: Relative variationof critical (dI/dt)c versus
junction temperature.
ORDERING INFORMATION
