®
ASD™
AC Switch Family
■
■
MAIN APPLICATIONS
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
■
■
■
■
■
■
■
FEATURES
Blocking voltage : V
DRM
/ V
RRM
= 500V
Clamping voltage : V
CL
= 600 V
Nominal current : I
T(RMS)
= 0.2 A
Gate triggering current : I
GT
< 5 mA
Switch integrated driver
Triggering current is sourced by the gate
SO-8 package:
- drive reference COM connected to 2 cooling pins
- 3.5 mm creepage distance from pin OUT to other pins
■
■
■
■
■
■
BENEFITS
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.
NC: Not Connected
ACS102-5Tx
AC LINE SWITCH
OUT
G COM
TO-92
ACS102-5TA
NC
COM
COM
G
NC
OUT
NC
NC
SO-8
ACS102-5T1
FUNCTIONAL DIAGRAM
OUT
ACS102 built around the ASD™ concept. This high perforObsolete Product(s) - Obsolete Product(s) device.
S
ON The ACS™ switch embeds a high voltage clamping structure to absorb the inductive turn off energy and a gate level shifter driver to separate the digital controller from the main switch. It is triggered with a negative gate current flowing out of the gate pin.
D
For further technical information, please refer to
AN1172 application note.
COM G
ASD and ACS are a trademarks of STMicroelectronics.
October 2001 - Ed: 7B 1/8
ACS102-5Tx
ABSOLUTE RATINGS (limiting values)
Symbol
I
T(RMS)
Parameter
V
DRM
/ V
RRM
Repetitive peak off-state voltage
RMS on-state current full cycle sine wave 50 to 60 Hz
TO-92
SO-8
I
TSM
Non repetitive surge peak on-state current
Tj initial = 25°C, full cycle sine wave dI/dt
V
PP
Tstg
Tj
Tl
Critical rate of repetitive rise of on-state current
I
G
= 10mA with tr = 100ns
Non repetitive line peak pulse voltage
Storage temperature range
Operating junction temperature range
Maximum lead temperature for soldering during 10s
Note 1: according to test described by IEC61000-4-5 standard & Figure 3.
SWITCH GATE CHARACTERISTICS (maximum values)
Symbol
P
G (AV)
I
GM
V
GM
Parameter
Average gate power dissipation
Peak gate current (tp = 20 µ s)
Peak positive gate voltage (respect to the pin COM)
Tj = 125 °C
Tamb = 100 °C
Tamb = 100 °C
F =50 Hz
F =60 Hz
F =120 Hz note 1
Value
500
0.2
0.2
7.3
8
20
2
- 40 to + 150
- 30 to + 125
260
Value
0.1
1
5 kV
°C
°C
°C
Unit
V
A
A
A
A
A/
µ s
Unit
W
A
V
THERMAL RESISTANCES
Symbol
Rth (j-a) Junction to ambient
Parameter
TO-92
SO-8 *
TO-92
Value
150
150
60
Unit
°C/W
°C/W
°C/W Rth (j-l) Junction to leads for full AC line cycle conduction
* with 40mm2 copper (ex: 35
µ m) surface under “com” pins
ELECTRICAL CHARACTERISTICS
For either positive or negative polarity of pin OUT voltage respect to pin COM voltage excepted note 3*.
Symbol Test Conditions Values Unit
I
GT
V
GT
V
GD
I
H
V
OUT
=12V R
L
=140
Ω
V
OUT
=12V R
L
=140
Ω
V
OUT
=V
DRM
R
L
=3.3k
Ω
I
OUT
= 100mA gate open
Tj=25°C
Tj=25°C
Tj=125°C
Tj=25°C
MAX
MAX
MIN
TYP
5
0.9
0.15
20 mA
V
V mA
I
L
I
G
= 20mA Tj=25°C
MAX
TYP tbd
25 mA
V
TM
I
OUT
= 0.3A
tp=380
µ s Tj=25°C
MAX
MAX tbd
1.2
V
µ
A I
DRM
I
RRM
V
OUT
= V
DRM
V
OUT
= V
RRM
Tj=25°C MAX 2
Tj=125°C MAX 200
V/
µ s dV/dt
(dI/dt)c
*(Note 3)
V
OUT
=400V gate open
(dV/dt)c = 5V/
µ s I
OUT
> 0
(dV/dt)c = 10V/
µ s I
OUT
< 0
Tj=110°C
Tj=110°C
MIN
MIN
300
0.1
0.15
A/ms
V
CL
I
CL
= 1mA tp=1ms Tj=25°C TYP 600 V tbd = to be defined
2/8
ACS102-5Tx
AC LINE SWITCH BASIC APPLICATION
The ACS102 device is well adapted to washing machines, dish washers, tumble driers, refrigerators, water heaters, and cookware. It has been designed especially to switch on & off low power loads such as solenoids, 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
This ACS™ switch is triggered with a negative gate current flowing out of the gate pin G. It can be driven directly 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.
Table 1: Low power load turn off commutation requirement (230V AC applications).
Load IRMS current
(dI/dt)c (dV/dt)c
LOAD
POWER
FACTOR
Door lock, lamp
Relay Valve
Dispenser
Micro-motor
Pump Fan
(A)
< 0.2
< 0.2
< 0.3
1
> 0.7
> 0.2
(A/ms)
< 0.1
< 0.1
< 0.15
(V/
µ s)
< 0.15
< 5
< 10
TYPICAL APPLICATION DIAGRAM
L
AC
MAINS
N
LOAD
L
R
TURN-OFF
DELAY
(ms)
< 10
< 10
< 20
S Obsolete Product(s) - Obsolete Product(s)
D
COM G
ST 72 MCU
- Vcc
3/8
ACS102-5Tx
HIGH INDUCTIVE SWITCH-OFF OPERATION
At the end of the last conduction half-cycle, the load current reaches the holding current level I
H
, 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 V
CL
.
The energy stored in the inductance of the load depends on the holding current I
H and the inductance (up to 10 H); it can reach about 20 mJ and is dissipated in the clamping diode section. The ACS™ switch sustains the turn off energy, because its clamping section is designed for that purpose.
Fig. 1: Turn-off operation of the ACS102 switch with an electro valve: waveform of the gate current
I
G
, pin OUT current I
OUT
& voltage V
OUT
.
Fig. 2: ACS102 switch static characteristic.
I
OUT
I
OUT
(10 mA/div) V
CL
= 650V
I
H
I H
V
OUT
V
OUT
(200V/div)
V
CL
T ime (400µs/div)
AC LINE TRANSIENT VOLTAGE RUGGEDNESS
The ACS102 switch is able to withstand safely the AC line transient voltages either by clamping the low energy 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 withstands the voltage spikes up to 2 kV above the peak line voltage. It will break over safely even on resistive 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.
Fig. 3: Overvoltage ruggedness test circuit for resistive and inductive loads according to
IEC61000-4-5 standard.
R = 150
Ω
, L = 5
µ
H, V
PP
= 2kV.
Fig. 4: Current and Voltage of the ACS™ during
IEC61000-4-5 standard test with R = 150
Ω
, L = 5
µ
H
& V
PP
= 2kV.
Obsolete Product(s) - Obsolete Product(s)
L R Obsolete Product(s) - Obsolete Product(s)
Vout (200 V/div)
Iout (2.5 A/div)
OUT
ACSxx AC LINE &
SURGE VOLTAGE
GENERATOR
S
V
AC
+ V
PP
ON
D
COM G dI/dt = 70 A/µs
R G = 220
Ω
4/8
Fig. 5: Maximum power dissipation versus RMS on-state current.
P(W)
0.20
0.18
0.16
0.14
0.12
0.10
0.08
0.06
0.04
0.02
IT(RMS)(A)
0.00
0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.14 0.16 0.18 0.20
ACS102-5Tx
Fig. 6: RMS on-state current versus ambient temperature.
0.25
IT(RMS)(A)
0.20
0.15
0.10
0.05
0.00
0 20 40
Tamb(°C)
60 80 100 120 140
Fig. 7-1: Relative variation of thermal impedance junction to ambient versus pulse duration
(ACS102-5TA) (TO-92).
1.00
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) = 35
µ m, S(Cu) = 40mm
2 under “com” pins) (ACS102-5T1) (SO-8).
1.00
Zth(j-a) / Rth(j-a)
0.10
0.10
0.01
1E-3 1E-2 1E-1 tp(s)
1E+0 1E+1 1E+2 5E+2
0.01
1E-3 1E-2 1E-1 tp(s)
1E+0 1E+1 1E+2 5E+2
Fig. 8: Relative variation of gate trigger current versus junction temperature.
3.0
IGT [Tj] / IGT [Tj=25°C]
Fig. 9: Relative variation of holding and latching current versus junction temperature.
2.0
1.8
1.6
1.4
IH,IL [Tj] / IH,IL [Tj=25°C]
1.0
0.5
0.0
-40 -20 0 20
Tj(°C)
40 60 80 100 120 140
0.8
0.6
0.4
0.2
0.0
-40 -20 0 20 40
Tj(°C)
60 80 100 120 140
5/8
ACS102-5Tx
Fig. 10: Surge peak on-state current versus number of cycles.
ITSM(A)
9
8
7
6
5
4
3
2
Tamb=25°C
Repetitive
1
0
1
Number of cycles
10
Tj initial=25°C
Non repetitive
100 t=20ms
One cycle
1000
Fig. 11: Non-repetitive surge peak on-state current for a sinusoidal pulse with width tp<10ms, and corresponding value of I
2 t..
100.0
ITSM(A),I²t(A²s) dI/dt limitation:
20A/µs
10.0
Tj initial=25°C
ITSM
1.0
0.1
0.01
0.10
tp(ms)
1.00
I²t
10.00
Fig. 12: On-state characteristics (maximum values).
5.00
ITM(A)
1.00
0.10
Tj max.
Vto = 0.85 V
Rd = 400 m
Ω
VTM(V)
0.01
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
Fig. 13: Thermal resistance junction to ambient versus copper surface under tab (Epoxy printed circuit board FR4, copper thickness under “com” pins: 35
µ m) (ACS102-5T1).
Rth(j-a) (°C/W)
180
160
140
120
100
80
60
40
20 S(mm²)
0
0 20 40 60 80 100 120 140 160 180 200 220 240
Fig. 14: Relative variation of critical (dI/dt)c versus junction temperature (ACS102-5T1).
(dI/dt)c [Tj] / (dI/dt)c [Tj=110°C] Obsolete Product(s) - Obsolete Product(s)
2.5
Obsolete Product(s) - Obsolete Product(s)
1.5
1.0
0.5
Tj(°C)
0.0
0 10 20 30 40 50 60 70 80 90 100 110 120
6/8
ACS102-5Tx
ORDERING INFORMATION
ACS 1 02 - 5 T X -TR
AC
Switch
Switch
Number
I
TRMS
02 = 0.2A
PACKAGE OUTLINE MECHANICAL DATA
SO-8
A = TO-92
1 = SO-8
V
DRM
5 = 500V
Gate sensistivity
T = 5 mA ddd C
B
8
1
D e
A2
A
A1
5
4
E H
C
(Seating
Plane) k h x 45°
L
0.25mm
(Gage Plane)
REF.
A
A1
A2
B
C
D
E e
H h
L k ddd
TR = SO-8 Tape & Reel
DIMENSIONS
Millimetres Inches
Min.
Max.
Min.
Max.
1.35
0.1
1.10
0.33
1.75
0.25
1.65
0.51
0.053
0.004
0.043
0.013
0.069
0.010
0.065
0.020
0.19
4.80
0.25
5.00
3.80
4.00
1.27 Typ.
5.80
6.20
0.007
0.189
0.010
0.197
0.150
0.157
0.05 Typ.
0.228
0.244
0.25
0.40
0.100
0.50
1.27
0.010
0.016
8° (max)
0.019
0.050
0.004
PACKAGE FOOT PRINT Obsolete Product(s) - Obsolete Product(s)
6.8
Obsolete Product(s) - Obsolete Product(s)
0.6
4.2
1.27
7/8
ACS102-5Tx
PACKAGE OUTLINE MECHANICAL DATA
TO-92 (Plastic)
A
B C
F D E a
F a
D
E
A
B
C
REF.
DIMENSIONS
Millimeters Inches
Min.
Typ.
Max.
Min.
Typ.
Max.
1.35
0.053
4.70
0.185
2.54
0.100
4.40
12.70
0.173
0.500
3.70
0.45
0.146
0.017
OTHER INFORMATION
Ordering type
ACS102-5TA
ACS102-5TA-TR
ACS102-5T1
ACS102-5T1-TR
Marking
ACS102
ACS102
ACS102
ACS102
Package
TO-92
TO-92
SO-8
SO-8
ASD and ACS are a trademarks of STMicroelectronics.
Weight
0.2g
0.2g
0.11g
0.11g
Base qty
2500
2000
100
2500
Delivery mode
Bulk
Tape & reel
Tube
Tape & reel
Obsolete Product(s) - Obsolete Product(s)
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of Obsolete Product(s) - Obsolete Product(s) 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 approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 2001 STMicroelectronics - Printed in Italy - All rights reserved.
STMicroelectronics GROUP OF COMPANIES
Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia
Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A.
http://www.st.com
8/8
