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ACS102-5Tx
®
October 2001 - Ed: 7B
AC LINE SWITCH
TO-92
ACS102-5TA
■Blocking voltage : VDRM /V
RRM = 500V
■Clamping voltage : VCL = 600 V
■Nominal current : IT(RMS) = 0.2 A
■Gate triggering current : IGT <5mA
■Switch integrated driver
■Triggering current is sourced by the gate
■SO-8 package:
- drivereferenceCOMconnectedto2coolingpins
- 3.5 mm creepage distance from pin OUT to other
pins
FEATURES
The ACS102 belongs to the AC line switch family
built around the ASD™ concept. This high perfor-
mance device is able to control an up to 0.3 A load
device.
The ACS™ switch embeds a high voltage clamp-
ingstructureto absorb theinductiveturn off energy
andagatelevelshifter driver to separatethedigital
controller from the main switch. It is triggered with
anegativegatecurrentflowingoutof thegatepin.
For further technical information, please refer to
AN1172 application note.
DESCRIPTION
OUT
COM
G
■Needs no external overvoltage protection
■Enables equipment to meet IEC61000-4-5 &
IEC 335-1
■Reduces component count by up to 80 %
■Interfaces directly with a microcontroller
■Eliminates any stressing gate kick back on
microcontroller
■Allows straightforward connection of several
ACS™ on same cooling pad.
BENEFITS
G
COM
OUT
ON
S
D
ACS102
FUNCTIONAL DIAGRAM
ASD™
AC Switch Family
SO-8
ACS102-5T1
NC
NCCOMCOM G
NC NC
OUT
■AC on-off static switching in appliance &
industrial control systems
■Drive of low power high inductive or resistive
loads like
- relay, valve, solenoid, dispenser
- pump, fan, micro-motor
- low power lamp bulb, door lock
MAIN APPLICATIONS
NC: Not Connected
ASD and ACS are a trademarks of STMicroelectronics.
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Symbol Parameter Value Unit
VDRM /V
RRM Repetitive peak off-state voltage Tj = 125 °C 500 V
IT(RMS) RMS on-state current full cycle sine
wave 50 to 60 Hz TO-92 Tamb = 100 °C 0.2 A
SO-8 Tamb = 100 °C 0.2 A
ITSM Non repetitive surge peak on-state current
Tj initial = 25°C, full cycle sine wave F =50 Hz 7.3 A
F =60 Hz 8 A
dI/dt Critical rate of repetitive rise of on-state current
IG= 10mA with tr = 100ns F =120 Hz 20 A/µs
VPP Non repetitive line peak pulse voltage note 1 2kV
Tstg Storage temperature range - 40 to + 150 °C
Tj Operating junction temperature range - 30 to + 125 °C
Tl Maximum lead temperature for soldering during 10s 260 °C
Note 1: according to test described by IEC61000-4-5 standard & Figure 3.
ABSOLUTE RATINGS (limiting values)
Symbol Parameter Value Unit
PG (AV) Average gate power dissipation 0.1 W
IGM Peak gate current (tp = 20µs) 1 A
VGM Peak positive gate voltage (respect to the pin COM) 5 V
SWITCH GATE CHARACTERISTICS (maximum values)
Symbol Parameter Value Unit
Rth (j-a) Junction to ambient TO-92 150 °C/W
SO-8 * 150 °C/W
Rth (j-l) Junction to leads for full AC line cycle conduction TO-92 60 °C/W
* with 40mm2copper (ex: 35µm) surface under “com” pins
THERMAL RESISTANCES
Symbol Test Conditions Values Unit
IGT VOUT=12V RL=140ΩTj=25°C MAX 5 mA
VGT VOUT=12V RL=140ΩTj=25°C MAX 0.9 V
VGD VOUT=VDRM RL=3.3kΩTj=125°C MIN 0.15 V
IHIOUT= 100mA gate open Tj=25°C TYP 20 mA
MAX tbd
ILIG= 20mA Tj=25°C TYP 25 mA
MAX tbd
VTM IOUT = 0.3A tp=380µs Tj=25°C MAX 1.2 V
IDRM
IRRM VOUT =V
DRM
VOUT =V
RRM Tj=25°C MAX 2 µA
Tj=125°C MAX 200
dV/dt VOUT=400V gate open Tj=110°C MIN 300 V/µs
(dI/dt)c
*(Note 3) (dV/dt)c = 5V/µsI
OUT > 0 Tj=110°C MIN 0.1 A/ms
(dV/dt)c = 10V/µsI
OUT < 0 0.15
VCL ICL = 1mA tp=1ms Tj=25°C TYP 600 V
tbd = to be defined
ELECTRICAL CHARACTERISTICS
For either positive or negative polarity of pin OUT voltage respect to pin COM voltage excepted note 3*.
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TheACS102 device iswell adapted towashing machines, dishwashers, tumble driers,refrigerators, water
heaters, and cookware. It has been designed especially to switch on & off low power loads such as sole-
noids, valves, relays, dispensers, micro-motors, pumps, fans, door locks, and low power lamps bulbs.
Pin COM : Common drive reference, to connect to the power line neutral
Pin G : Switch Gate input to connect to the digital controller through a resistor
Pin OUT : Switch Output, to connect to the load
ThisACS™ switch istriggered with anegative gatecurrent flowing outof the gatepin G. Itcan be drivendi-
rectly by the digital controller through a resistor as shown on the typical application diagram. No protection
device are required between the gate and COM terminals.
The SO-8 version allows to connect several ACS102 devices on the same cooling PCB pad which is the
COM pin.
In appliance systems, the ACS102 switch intends to drive low power loads in full cycle ON / OFF mode.
The turn off commutation characteristics of these loads are described in Table 1.
Thanks to its thermal and turn-off commutation characteristics, the ACS102 switch drives a load, such as
door lock, lamp, relay, valve and micro motor, up to 0.2A without any turn-off aid circuit. Switching off the
ACS within one full AC line cycle will extend its current up to 0.3 A.
AC LINE SWITCH BASIC APPLICATION
LOAD
Load IRMS
current
(A)
POWER
FACTOR
(dI/dt)c
(A/ms)
(dV/dt)c
(V/µs)
TURN-OFF
DELAY
(ms)
Door lock, lamp < 0.2 1 < 0.1 < 0.15 < 10
Relay Valve
Dispenser
Micro-motor
< 0.2 > 0.7 < 0.1 < 5 < 10
Pump Fan < 0.3 > 0.2 < 0.15 < 10 < 20
Table 1: Low power load turn off commutation requirement (230V AC applications).
AC
MAINS
L
N
ST 72 MCU
LOAD
-Vcc
L
R
G
COM
OUT
ACS102
ON
S
D
TYPICAL APPLICATION DIAGRAM
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At the end of the last conduction half-cycle, the load current reaches the holding current level IH, and the
ACS™ switch turns off. Because of the inductance L of the load, the current flows through the avalanche
diode D and decreases linearly to zero. During this time, the voltage across the switch is limited to the
clamping voltage VCL.
The energy stored in the inductance of the load depends on the holding current IHand the inductance (up
to 10 H); it can reach about 20 mJ and is dissipated in the clamping diode section. The ACS™ switch sus-
tains the turn off energy, because its clamping section is designed for that purpose.
HIGH INDUCTIVE SWITCH-OFF OPERATION
Time (400µs/div)
IOUT
(10 mA/div)
VOUT
(200V/div)
IH
VCL = 650V
Fig. 1: Turn-off operation of the ACS102 switch
with an electro valve: waveform of the gate current
IG, pin OUT current IOUT & voltage VOUT.
IH
VCL
IOUT
VOUT
Fig. 2: ACS102 switch static characteristic.
TheACS102 switchis ableto withstandsafely theAC linetransient voltages either by clamping the low en-
ergy spikes or by breaking over under high energy shocks.
The test circuit of the figure 3 is representative of the final ACS™ application and is also used to stress the
ACS™ switch according to the IEC61000-4-5 standard conditions. Thanks to the load, the ACS™ switch
withstandsthe voltagespikes up to2 kVabove the peak line voltage.It willbreak over safely even onresis-
tive load where the turn on current rate of increase is high as shown on figure 4. Such non repetitive test
can be done 10 times on each AC line voltage polarity.
AC LINE TRANSIENT VOLTAGE RUGGEDNESS
RL
R
G
= 220Ω
VAC +VPP
AC LINE &
SURGE VOLTAGE
GENERATOR
GCOM
OUT
ACSxx
ON
S
D
Fig. 3: Overvoltageruggednesstestcircuit for
resistive and inductive loads according to
IEC61000-4-5 standard.
R = 150Ω,L=5µH, VPP = 2kV.
Vout (200V/div) Iout (2.5 A/div)
dI/dt = 70 A/µs
Fig. 4: Current and Voltage of the ACS™ during
IEC61000-4-5 standard test withR=150Ω,L=5µH
&V
PP = 2kV.
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0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20
0.00
0.02
0.04
0.06
0.08
0.10
0.12
0.14
0.16
0.18
0.20
IT(RMS)(A)
P(W)
Fig. 5: Maximum power dissipation versus RMS
on-state current.
0 20 40 60 80 100 120 140
0.00
0.05
0.10
0.15
0.20
0.25
Tamb(°C)
IT(RMS)(A)
Fig. 6: RMS on-state current versus ambient
temperature.
1E-3 1E-2 1E-1 1E+0 1E+1 1E+2 5E+2
0.01
0.10
1.00
tp(s)
Zth(j-a) / Rth(j-a)
Fig. 7-1: Relative variation of thermal impedance
junction to ambient versus pulse duration
(ACS102-5TA) (TO-92).
1E-3 1E-2 1E-1 1E+0 1E+1 1E+2 5E+2
0.01
0.10
1.00
tp(s)
Zth(j-a) / Rth(j-a)
Fig. 7-2: Relative variation of thermal impedance
junction to ambient versus pulse duration (printed
circuit board FR4, e(Cu) = 35µm, S(Cu) = 40mm2
under “com” pins) (ACS102-5T1) (SO-8).
-40 -20 0 20 40 60 80 100 120 140
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Tj(°C)
IGT [Tj] / IGT [Tj=25°C]
Fig. 8: Relative variation of gate trigger current
versus junction temperature.
-40 -20 0 20 40 60 80 100 120 140
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Tj(°C)
IH,IL [Tj] / IH,IL [Tj=25°C]
Fig. 9: Relative variation of holding and latching
current versus junction temperature.
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0.01 0.10 1.00 10.00
0.1
1.0
10.0
100.0
tp(ms)
ITSM(A),I²t(A²s)
Tj initial=25°C
ITSM
I²t
dI/dt limitation:
20A/µs
Fig. 11: Non-repetitive surge peak on-state
current for a sinusoidal pulse with width tp<10ms,
and corresponding value of I2t..
0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2
0.01
0.10
1.00
5.00
VTM(V)
ITM(A)
Tj max.
Vto = 0.85 V
Rd = 400 mΩ
Fig. 12: On-state characteristics (maximum
values).
0 20 40 60 80 100 120 140 160 180 200 220 240
0
20
40
60
80
100
120
140
160
180
S(mm²)
Rth(j-a) (°C/W)
Fig. 13: Thermal resistance junction to ambient
versus copper surface under tab (Epoxy printed
circuit board FR4, copper thickness under “com”
pins: 35µm) (ACS102-5T1).
0 10 20 30 40 50 60 70 80 90 100 110 120
0.0
0.5
1.0
1.5
2.0
2.5
3.0
Tj(°C)
(dI/dt)c [Tj] / (dI/dt)c [Tj=110°C]
Fig. 14: Relative variation of critical (dI/dt)c versus
junction temperature (ACS102-5T1).
1 10 100 1000
0
1
2
3
4
5
6
7
8
9
Number of cycles
ITSM(A)
Tj initial=25°C
Non repetitive
Tamb=25°C
Repetitive
One cycle
t=20ms
Fig. 10: Surge peak on-state current versus
number of cycles.
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AC
Switch
Gate
sensistivity
T = 5 mA
A = TO-92
1 = SO-8
ACS 1 02 - 5 T X -TR
Switch
Number
TR = SO-8 Tape & Reel
I
02 = 0.2A
TRMS
V
5 = 500V
DRM
ORDERING INFORMATION
PACKAGE OUTLINE MECHANICAL DATA
SO-8
REF.DIMENSIONS
Millimetres Inches
Min. Max. Min. Max.
A 1.35 1.75 0.053 0.069
A1 0.1 0.25 0.004 0.010
A2 1.10 1.65 0.043 0.065
B 0.33 0.51 0.013 0.020
C 0.19 0.25 0.007 0.010
D 4.80 5.00 0.189 0.197
E 3.80 4.00 0.150 0.157
e 1.27 Typ. 0.05 Typ.
H 5.80 6.20 0.228 0.244
h 0.25 0.50 0.010 0.019
L 0.40 1.27 0.016 0.050
k 8° (max)
ddd 0.100 0.004
k
h x 45°
E
e
A
A2
B
D
8
41
5
H
L
C
(Seating
Plane) 0.25mm
(Gage Plane)
A1
ddd C
6.8
4.2
1.27
0.6
PACKAGE FOOT PRINT
SO-8
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Informationfurnishedisbelievedtobeaccurateandreliable.However,STMicroelectronicsassumesnoresponsibilityfortheconsequencesof
useofsuch information nor for any infringement of patents or other rightsofthirdpartieswhichmayresultfromitsuse. No license is granted by
implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to
change without notice. This publication supersedes and replaces all information previously supplied.
STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written ap-
proval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics
© 2001 STMicroelectronics - Printed in Italy - All rights reserved.
STMicroelectronics GROUP OF COMPANIES
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Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A.
http://www.st.com
PACKAGE OUTLINE MECHANICAL DATA
TO-92 (Plastic)
D
F
a
E
B
A
C
REF. DIMENSIONS
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.35 0.053
B 4.70 0.185
C 2.54 0.100
D 4.40 0.173
E 12.70 0.500
F 3.70 0.146
a 0.45 0.017
Ordering type Marking Package Weight Base qty Delivery mode
ACS102-5TA ACS102 TO-92 0.2g 2500 Bulk
ACS102-5TA-TR ACS102 TO-92 0.2g 2000 Tape & reel
ACS102-5T1 ACS102 SO-8 0.11g 100 Tube
ACS102-5T1-TR ACS102 SO-8 0.11g 2500 Tape & reel
OTHER INFORMATION
ASD and ACS are a trademarks of STMicroelectronics.
