ACST2 [STMICROELECTRONICS]
AC Switch family Alternating current switch; AC交换机系列交流电开关
| 型号： | ACST2 |
| 厂家： | 
ST |
| 描述： | AC Switch family Alternating current switch |
| 文件： | 总11页 (文件大小：161K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ACST2 Series
AC Switch family
Alternating current switch
Main features
OUT
G
Symbol
Value
Unit
COM
IT(RMS)
VDRM/VRRM
IGT
2
A
V
G
OUT
COM
800
10
mA
DPAK
ACST2-8SB
TO-220FPAB
ACST2-8SFP
■ Overvoltage crowbar technology
■ High noise immunity: static dV/dt > 500 V/µs
Benefits
The ACST2-8SFP in the TO-220FPAB package
provides insulation voltage rated at 1500V
RMS
■ Enables equipment to meet IEC 61000-4-5
■ High off-state reliability with planar technology
■ Needs no external overvoltage protection
■ Reduces component count
Main application
■ AC ON/OFF static switching in appliances &
industrial control systems
■ Interfaces directly with the micro-controller
■ Drive of low power highly resistive or inductive
■ High immunity against fast transients
loads like:
described in IEC 61000-4-4 standards
– solenoid,
– pump, fan, micro-motor
Order code
Part number
Marking
Description
ACST2-8SFP
ACST2-8SB
ACST28S
ACST28S
The ACST2 series belongs to the AC power
switch family built around the ASD technology.
This high performance device is adapted to home
appliances or industrial systems and drives loads
up to 2 A.
Functional diagram
This ACST2 switch embeds a Triac structure with
a high voltage clamping device to absorb the
inductive turn-off energy and withstand line
transients such as those described in the
OUT
IEC 61000-4-5 standards. The component needs
a low gate current to be activated (I < 10 mA)
GT
G
and in the mean time provides a high electrical
noise immunity such as those described in the
IEC 61000-4-4 standards.
COM
March 2007
Rev 1
1/11
www.st.com
11
Characteristics
ACST2 Series
1
Characteristics
Table 1.
Symbol
Absolute maximum ratings (limiting values)
Parameter
Value
Unit
TO-220FPAB Tc = 105° C
A
IT(RMS) RMS on-state current (full sine wave)
2
DPAK
Tc = 110 °C
t = 16.7 ms
t = 20 ms
F = 60 Hz
F = 50 Hz
tp = 10 ms
8.4
8.0
0.5
A
Non repetitive surge peak on-state current
ITSM
(full cycle sine wave, TJ initial = 25° C)
²
²
²
I t
I t Value for fusing
A s
Critical rate of rise of on-state current
IG = 2 x IGT, tr = 100 ns
dI/dt
F = 120 Hz
Tj = 125° C
50
A/µs
(1)
VPP
Non repetitive line peak mains voltage (1)
Tj = 25° C
Tj = 125° C
Tj = 125° C
Tj = 125° C
2
kV
W
W
A
PG(AV) Average gate power dissipation
0.1
10
1.6
PGM
IGM
Peak gate power dissipation (tp = 20 µs)
Peak gate current (tp = 20 µs)
Tstg
Tj
Storage junction temperature range
Operating junction temperature range
-40 to +150
-40 to +125
° C
° C
Tl
Maximum lead soldering temperature during 10 s (at 3 mm from plastic case)
260
1. according to test described by IEC 61000-4-5 standard and Figure 16
Table 2.
Symbol
Electrical characteristics (T = 25° C, unless otherwise specified)
j
Test conditions
VOUT = 12 V RL = 33 Ω
Quadrant
Value
Unit
(1)
IGT
I - II - III
I - II - III
I - II - III
MAX
MAX
MIN
10
1.1
0.2
10
mA
V
VGT
VOUT = 12 V RL = 33 Ω
VOUT = VDRM RL = 3.3 kΩ Tj = 125° C
IOUT = 100 mA
VGD
V
(2)
IH
MAX
MAX
MAX
MIN
mA
I - III
II
25
IL
IG = 1.2 x IGT
mA
35
dV/dt (2)
VOUT = 67% VDRM gate open Tj = 125° C
500
0.5
850
V/µs
A/ms
V
(dI/dt)c (2) (dV/dt)c = 15 V/µs Tj = 125° C
MIN
VCL ICL = 0.1 mA tp = 1 ms Tj = 25° C
MIN
1. minimum IGT is guaranteed at 5% of IGT max
2. for both polarity of OUT pin referenced to COM pin
2/11
ACST2 Series
Characteristics
Unit
Table 3.
Symbol
Static electrical characteristics
Test conditions
Value
(1)
VTM
ITM = 2.8 A tp = 500 µs
Threshold voltage
Tj = 25° C
Tj = 125° C
Tj = 125° C
Tj = 25° C
Tj = 125° C
MAX
MAX
MAX
2
V
V
(1)
VTO
0.9
250
10
(1)
RD
Dynamic resistance
mΩ
µA
mA
IDRM
IRRM
VOUT = VDRM / VRRM
MAX
0.5
1. for both polarity of OUT pin referenced to COM pin
Table 4.
Symbol
Thermal resistances
Parameter
Value
4.5
Unit
DPAK
Rth(j-c)
Junction to case (AC)
Junction to ambient
TO-220FPAB
TO-220FPAB
DPAK
7
° C/W
60
70
Rth(j-a)
SCU (1)= 0.5 cm
²
1. SCU = copper surface under tab
Figure 1.
Maximum power dissipation versus Figure 2.
RMS on-state current (full cycle)
RMS on-state current versus case
temperature
P(W)
2.8
I
T(RMS)(A)
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
α=180 °
DPAK
2.4
2.0
1.6
1.2
0.8
0.4
0.0
TO-220FPAB
180°
α=180 °
TC(°C)
IT(RMS)(A)
1.0
0
25
50
75
100
125
0.0
0.2
0.4
0.6
0.8
1.2
1.4
1.6
1.8
2.0
3/11
Characteristics
ACST2 Series
Figure 3.
RMS on-state current versus
ambient temperature
Figure 4.
Relative variation of thermal
impedance versus pulse duration -
TO-220FPAB
K=[Zth/Rth
]
IT(RMS)(A)
1.00
0.10
0.01
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
α=180 °
Printed circuit board FR4
Natural convection
SCU=0.5 cm²
Zth(j-c)
Zth(j-a)
Tamb(°C)
TO-220FPAB
tP(s)
0
25
50
75
100
125
1.0E-04 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03
Figure 5.
Relative variation of thermal
impedance versus pulse duration -
DPAK
Figure 6.
Relative variation of gate trigger
current I , holding current I and
GT
H
latching current I versus junction
L
temperature (typical values)
K=[Zth/Rth
]
IGT, IH, IL [TJ] / IGT, IH, IL [Tj=25 °C]
1.0E+00
2.8
2.6
2.4
2.2
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
IGT
Zth(j-c)
IL & IH
Zth(j-a)
1.0E-01
1.0E-02
DPAK
Tj(°C)
tP(s)
-40 -30 -20 -10
0
10 20 30 40 50 60 70 80 90 100 110 120 130
1.0E-04 1.0E-03 1.0E-02 1.0E-01 1.0E+00 1.0E+01 1.0E+02 1.0E+03
Figure 7.
Relative variation of static dV/dt
versus junction temperature
Figure 8.
Relative variation of critical rate of
decrease of main current versus
reapplied dV/dt (typical values)
dV/dt [Tj] / dV/dt [Tj=125 °C]
(dI/dt)c [ (dV/dt)c ] / Specified (dI/dt)c
100
10
1
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
VOUT=540 V
VOUT=300 V
Tj(°C)
75
(dV/dt)c(V/µs)
0.1
1.0
10.0
100.0
25
50
100
125
4/11
ACST2 Series
Characteristics
Figure 9.
Relative variation of critical rate of Figure 10. Surge peak on-state current versus
decrease of main current versus
junction temperature
number of cycles
(dI/dt)c [Tj] / (dI/dt)c [Tj=125 °C]
ITSM(A)
9
8
7
6
5
4
3
2
1
0
20
18
16
14
12
10
8
VOUT=300 V
t=20ms
One cycle
Non repetitive
Tj initial=25 °C
Repetitive
T
C=110 °C
6
4
2
Tj(°C)
Number of cycles
0
1
10
100
1000
25
50
75
100
125
Figure 11. Non repetitive surge peak on-state Figure 12. On-state characteristics (maximum
current for a sinusoidal pulse with values)
width t < 10 ms, and
P
²
corresponding value of I t
ITSM(A), I²t (A²s)
ITM(A)
1.E+01
1.E+00
1.E-01
1.E-02
100.0
10.0
1.0
Tj initial=25 °C
ITSM
Tj=125 °C
Tj=25 °C
I²t
TJ max. :
TO= 0.90 V
D= 250 mW
V
R
VTM(V)
2.5
tP(ms)
0.1
0.01
0.10
1.00
10.00
0.0
0.5
1.0
1.5
2.0
3.0
3.5
4.0
4.5
5.0
Figure 13. Thermal resistance junction to
Figure 14. Relative variation of clamping
ambient versus copper surface
under tab (printed circuit board
voltage V versus junction
temperature
CL
FR4, e = 35 µm) (DPAK)
CU
Rth(j-a)(°C/W)
VCL [Tj] / VCL [Tj=25 °C]
100
90
80
70
60
50
40
30
20
10
0
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
DPAK
Tj(°C)
60
SCU(cm²)
0
5
10
15
20
25
30
35
40
-40
-20
0
20
40
80
100
120
140
5/11
AC line switch basic application
ACST2 Series
2
AC line switch basic application
The ACST2 device has been designed to switch on and off highly inductive or resistive loads
such as pump, valve, fan, or bulb lamp. Thanks to its high sensitivity (I max = 10 mA), the
GT
ACST2 can be driven directly by logic level circuits through a resistor as shown on the
typical application diagram. Thanks to its thermal and turn-off commutation performances,
the ACST2 switch can drive, without any additional snubber, an inductive load up to 2 A.
Figure 15. Typical application diagram
Line
L
AC LOAD
R
AC Mains
ACST2
Rg
MCU
Power supply
2.1
Protection against overvoltage: the best choice is ACST
In comparison with standard triacs, which are not robust against surge voltages, the ACST2
is over-voltage self-protected, specified by the new parameter V . In addition, ACST2 is a
CL
sensitive device (I = 10mA), but provides a high noise immunity level against fast
GT
transients.
The ACST2 switch is able to sustain safely the AC line transient voltages either by clamping
the low energy spikes or by breaking over under high energy shocks, even with fast turn-on
current rises.
The test circuit of the Figure 16 is representative of the final ACST2 application, and is also
used to stress the ACST switch according to the IEC 61000-4-5 standard conditions. Thanks
to the load limiting the current, the ACST switch sustains the voltage spikes up to 2 kV
above the peak line voltage. The protection is based on an overvoltage crowbar technology.
Actually, the ACST2 will break over safely as shown on Figure 17. The ACST is recovering
its blocking voltage capability at the next zero current crossing point. Such non repetitive test
can be done 10 times on each AC line voltage polarity.
6/11
ACST2 Series
Ordering information scheme
Figure 16. Overvoltage ruggedness test circuit Figure 17. Typical current and voltage
for resistive and inductive loads
according to IEC 61000-4-5
standards:
waveforms across the ACST2
during IEC 61000-4-5 standard test
R = 200 Ω, L = 10 µH, V = 2 kV
pp
Surge generator
2kV surge
V
(200 V/div)
OUT
Rgene
Model of the load
Filtering unit
L
R
I
(500 mA/div)
OUT
AC Mains
ACST2-8x
Rg
2.2
Electrical noise immunity
Even if the ACST2 is a sensitive device (I = 10 mA) and can be controlled directly though
GT
a simple resistor by a logic level circuit, it provides a high electrical noise immunity. The
intrinsic immunity of the ACST2 is shown by the specified dV/dt equal to 500 V/µs @ 125° C.
This immunity level is 5 to 10 times higher than the immunity provided by an equivalent
standard technology triac with the same sensitivity. In other word, ACST2 is sensitive, but
has an immunity reaching the one provided by non-sensitive device (I higher than 35 mA).
GT
3
Ordering information scheme
ACST 2 - 8
S
FP -TR
AC Switch series
Current
2 = 2 ARMS
Voltage
8 = 800 V
Sensitivity
S = 10 mA
Package
FP = TO-220FPAB
B = DPAK
Packing
TR = Tape and reel (DPAK)
Blank = Tube (TO-220FPAB, DPAK)
7/11
Package information
ACST2 Series
4
Package information
●
Epoxy meets UL94, V0
Table 5.
TO-220FPAB dimensions
Dimensions
Millimeters
Ref.
Inches
Min.
Max.
Min.
Max.
A
B
4.4
2.5
4.6
2.7
0.173
0.098
0.098
0.018
0.030
0.045
0.045
0.195
0.094
0.393
0.181
0.106
0.108
0.027
0.039
0.067
0.067
0.205
0.106
0.409
A
B
D
2.5
2.75
0.70
1
H
E
0.45
0.75
1.15
1.15
4.95
2.4
Dia
F
F1
F2
G
1.70
1.70
5.20
2.7
L6
L2
L3
L7
L5
G1
H
D
F1
10
10.4
L4
F2
L2
L3
L4
L5
L6
L7
Dia.
16 Typ.
0.63 Typ.
28.6
9.8
30.6
10.6
3.6
1.126
0.386
0.114
0.626
0.354
0.118
1.205
0.417
0.142
0.646
0.366
0.126
F
E
G1
G
2.9
15.9
9.00
3.00
16.4
9.30
3.20
8/11
ACST2 Series
Package information
Dimensions
Table 6.
DPAK dimensions
Ref.
Millimeters
Inches
Min.
Max.
Min.
Max.
A
A1
A2
B
2.20
0.90
0.03
0.64
5.20
0.45
0.48
6.00
6.40
4.40
9.35
2.40
1.10
0.23
0.90
5.40
0.60
0.60
6.20
6.60
4.60
10.10
0.086
0.035
0.001
0.025
0.204
0.017
0.018
0.236
0.251
0.173
0.368
0.094
0.043
0.009
0.035
0.212
0.023
0.023
0.244
0.259
0.181
0.397
E
A
B2
C2
L2
B2
C
D
R
H
L4
C2
D
A1
R
B
G
C
E
A2
G
0.60 MIN.
H
V2
L2
L4
V2
0.80 typ.
0.031 typ.
0.60
0°
1.00
8°
0.023
0°
0.039
8°
Figure 18. Footprint (dimensions in mm)
1.6
6.7
3
3
2.3
6.7
2.3
1.6
In order to meet environmental requirements, ST offers these devices in ECOPACK®
packages. These packages have a lead-free second level interconnect. The category of
second level interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
9/11
Ordering information
ACST2 Series
5
Ordering information
Part number
Marking
Package
Weight
Base Qty Packing mode
ACST2-8SFP
ACST2-8SB
ACST28S
ACST28S
ACST28S
TO-220FPAB
DPAK
2.4g
0.3g
0.3g
50
50
Tube
Tube
ACST2-8SB-TR
DPAK
2500
Tape and Reel
6
Revision history
Date
Revision
Changes
01-Mar-2007
1
Initial release.
10/11
ACST2 Series
Please Read Carefully:
Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the
right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any
time, without notice.
All ST products are sold pursuant to ST’s terms and conditions of sale.
Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no
liability whatsoever relating to the choice, selection or use of the ST products and services described herein.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this
document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products
or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such
third party products or services or any intellectual property contained therein.
UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED
WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS
OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT.
UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT
RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING
APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY,
DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE
GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK.
Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void
any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any
liability of ST.
ST and the ST logo are trademarks or registered trademarks of ST in various countries.
Information in this document supersedes and replaces all information previously supplied.
The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners.
© 2007 STMicroelectronics - All rights reserved
STMicroelectronics group of companies
Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan -
Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America
www.st.com
11/11
相关型号：
©2020 ICPDF网 联系我们和版权申明