ACST6 Datasheet by STMicroelectronics

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This is information on a product in full production.
May 2017 DocID7297 Rev 11 1/20
ACST6
Overvoltage protected AC switch
Datasheet
-
production data
Figure 1. Functional diagram
Features
Triac with overvoltage protection
Low I
GT
(< 10 mA)
TO-220FPAB insulated package:
complies with UL standards
(file ref: E81734)
insulation voltage: 2000 V
RMS
Benefits
Enables equipment to meet IEC 61000-4-5
High off-state reliability with planar technology
Needs no external overvoltage protection
Reduces the power passive component count
High immunity against fast transients
described in IEC 61000-4-4 standards
Applications
AC mains static switching in appliance and
industrial control systems
Drive of medium power AC loads such as:
Universal motor of washing machine drum
Compressor for fridge or air conditioner
Description
The ACST6 series belongs to the ACS/ACST
power switch family built with A.S.D. (application
specific discrete) technology. This high
performance device is suited to home appliances
or industrial systems, and drives loads up to 6 A.
This ACST6 switch embeds a Triac structure and
a high voltage clamping device able to absorb the
inductive turn-off energy and withstand line
transients such as those described in the
IEC 61000-4-5 standards. The ACST610 needs
only low gate current to be activated (I
GT
< 10
mA) and still shows a high noise immunity
complying with IEC standards such as IEC
61000-4-4 (fast transient burst test).
TO-220AB
ACST610-8T TO-220FPAB
ACST610-8FP
D²PAK
ACST610-8G I²PAK
ACST610-8R
G
OUT
OUT
COM
G
OUT
COM
G
OUT
COM
G
OUT
OUT
COM
G
COM
OUT
Table 1. Device summary
Symbol Value Unit
I
T(RMS)
6A
V
DRM
/V
RRM
800 V
I
GT
10 mA
www.st.com
Characteristics ACST6
2/20 DocID7297 Rev 11
1 Characteristics
Table 2. Absolute ratings (limiting values)
Symbol Parameter Value Unit
I
T(RMS)
On-state rms current (full sine wave)
TO-220FPAB T
c
= 92 °C
6
A
TO-220AB/
D
2
PAK / I
2
PAK T
c
= 106 °C
D
2
PAK with
1cm
2
copper T
amb
= 62 °C 1.5
I
TSM
Non repetitive surge peak on-state current T
j
initial = 25 °C, ( full cycle sine wave)
F = 60 Hz t
p
= 16.7 ms 47 A
F = 50 Hz t
p
= 20 ms 45 A
I
2
tI
2
t for fuse selection t
p
= 10 ms 13 A
2
s
dI/dt Critical rate of rise on-state current
I
G
= 2 x I
GT,
(t
r
100 ns) F = 120 Hz T
j
= 125 °C 100 A/µs
V
PP
Non repetitive line peak pulse voltage
(1)
T
j
= 25 °C 2 kV
P
G(AV)
Average gate power dissipation T
j
= 125 °C 0.1 W
P
GM
Peak gate power dissipation (t
p
= 20 µs) T
j
= 125 °C 10 W
I
GM
Peak gate current (t
p
= 20 µs) T
j
= 125 °C 1.6 A
T
stg
Storage temperature range -40 to +150 °C
T
j
Operating junction temperature range -40 to +125 °C
T
l
Maximum lead solder temperature during 10 ms (at 3 mm from plastic case) 260 °C
V
INS(RMS)
Insulation RMS voltage (60 seconds) TO-220FPAB 2000 V
1. According to test described in IEC 61000-4-5 standard and Figure 18.
Table 3. Electrical characteristics
Symbol Test conditions Quadrant T
j
Value Unit
I
GT(1)
V
OUT
= 12 V, R
L
= 33 ΩI - II - III 25 °C MAX. 10 mA
V
GT
V
OUT
= 12 V, R
L
= 33 ΩI - II - III 25 °C MAX. 1.0 V
V
GD
V
OUT
= V
DRM
,
R
L
= 3.3 kΩI - II - III 125 °C MIN. 0.2 V
I
H(2)
I
OUT
= 500 mA 25 °C MAX. 25 mA
I
L
I
G
= 1.2 x I
GT
I - III 25 °C MAX. 30 mA
I
L
I
G
= 1.2 x I
GT
II 25 °C MAX. 40 mA
dV/dt
(2)
V
OUT
= 67 % V
DRM
, gate open 125 °C MIN. 500 V/µs
(dI/dt)
c(2)
(dV/dt)
c
= 15 V/µs 125 °C MIN. 3.5 A/ms
V
CL
I
CL
= 0.1 mA, t
p
= 1 ms 25 °C MIN. 850 V
1. Minimum I
GT
is guaranteed at 5% of I
GT
max
2. For both polarities of OUT pin referenced to COM pin
flip—L1 ma 125
DocID7297 Rev 11 3/20
ACST6 Characteristics
20
Table 4. Static characteristics
Symbol Test conditions Value Unit
V
TM(1)
I
OUT
= 2.1 A, t
p
= 500 µs T
j
= 25 °C MAX. 1.4 V
I
OUT
= 8.5 A, t
p
= 500 µs 1.7
V
T0(1)
Threshold voltage T
j
= 125 °C MAX. 0.9 V
R
d(1)
Dynamic resistance T
j
= 125 °C MAX. 80 mΩ
I
DRM
I
RRM
V
OUT
= V
DRM
/ V
RRM
T
j
= 25 °C MAX. 20 µA
T
j
= 125 °C MAX. 500 µA
1. For both polarities of OUT pin referenced to COM pin
Table 5. Thermal resistances
Symbol Parameter Value Unit
Rt
h(j-a)
Junction to ambient
TO-220AB
TO-220FPAB 60
°C/W
I
2
PAK 65
Junction to ambient (soldered on 1 cm
2
copper pad) D
2
PAK 45
R
th(j-c)
Junction to case for full cycle sine wave conduction
TO-220FPAB 4.25
°C/W
TO-220AB
D
2
PAK , I
2
PAK 2.5
Figure 2. Maximum power dissipation versus
RMS on-state current Figure 3. On-state RMS current versus case
temperature (full cycle)
0
1
2
3
4
5
6
7
8
0123456
P(W)
α= 180°
IT(RMS)(A)
180°
0
1
2
3
4
5
6
7
0 25 50 75 100 125
IT(RMS)(A)
TC(°C)
TO-220FPAB
TO-220AB
D²PAK
I²PAK
α= 180°
a 25 5D ,5 m ‘25 Lain: mam mam mm: I m um mm
Characteristics ACST6
4/20 DocID7297 Rev 11
Figure 4. On-state rms current versus ambient
temperature
(free air convection, full cycle)
Figure 5. Relative variation of thermal
impedance versus pulse duration
K = [Zth / Rth]
1.0E-02
1.0E-01
1.0E+00
tp(s)
1.0E-03 1.0E-01 1.0E+01 1.0E+03
Zth(j-c)
Zth(j-a)
TO-220AB
D²PAK
I²PAK
TO-220FPAB
Figure 6. Relative variation of gate trigger
current (I
GT
) and voltage (V
GT
) versus junction
temperature (typical values)
Figure 7. Relative variation of holding current
(I
H
) and latching current (I
L
) versus junction
temperature (typical values)
0.0
0.5
1.0
1.5
2.0
2.5
3.0
-50 -25 0 25 50 75 100 125
IGT ,VGT [T j] / IGT ,VGT [T j= 25 °C ]
Tj(°C )
IGT Q3
IGT Q1-Q 2
V Q 1-Q2-Q 3
GT
0.0
0.5
1.0
1.5
2.0
2.5
-50 -25 0 25 50 75 100 125
IH,IL[T j] / IH,IL[T j= 25 °C ]
Tj(°C )
IL
IH
Figure 8. Surge peak on-state current
versus number of cycles Figure 9. Non repetitive surge peak on-state
current versus sinusoidal pulse width
ITSM(A)
Number of cycles
0
10
20
30
40
50
1 10 100 1000
Number of cycles
Repetitive
T
C=106 °C
Non repetitive
Tjinitial = 25 °C
One cycle
t = 20 ms
1
10
100
1000
0.01 0.10 1.00 10.00
dl /dt limitation: 100 A / µs Tjinitial = 25 °C
ITS M
ITSM (A), I
t (A
s)
tp(ms)
25 SH 75 mn ms :5 an we 125 :5 5-2 75 mo ‘25 25 5n 15 ma 125
DocID7297 Rev 11 5/20
ACST6 Characteristics
20
Figure 10. On-state characteristics
(maximum values) Figure 11. Relative variation of critical rate of
decrease of main current (dI/dt)
c
versus
junction temperature
1
10
100
012345
ITM(A)
VTM(V)
Tjmax:
Vto = 0.90 V
Rd= 80 mΩ
Tj= 125 °C Tj= 25 °C
0
1
2
3
4
5
6
7
8
25 50 75 100 125
(dl/dt)c[Tj] / (dl/dt)c[Tj= 125 °C]
Tj(°C)
Figure 12. Relative variation of static dV/dt
immunity versus junction temperature (gate
open)
Figure 13. Relative variation of leakage current
versus junction temperature
0
1
2
3
4
5
6
25 50 75 100 125
dV/dt [Tj] / dV/dt [Tj= 125 °C]
Tj(°C)
VD=V
R= 536 V
25 50 75 100 125
IDRM/IRRM [Tj;V
DRM /V
RRM] / IDRM/IRRM[Tj= 125 °C; 800 V]
1.0E-03
1.0E-02
1.0E-01
1.0E+00
Tj(°C)
VDRM =V
RRM = 200 V
VDRM =V
RRM = 600 V
VDRM =V
RRM = 800V
Different blocking voltages
Figure 14. Relative variation of clamping
voltage (V
CL
) versus junction temperature
(minimum values)
Figure 15. Thermal resistance junction to
ambient versus copper surface under tab
V[T
j] / V [Tj= 25 °C]
CL CL
0.85
0.90
0.95
1.00
1.05
1.10
1.15
-50 -25 0 25 50 75 100 125
Tj(°C)
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Application information ACST6
6/20 DocID7297 Rev 11
2 Application information
2.1 Typical application description
The ACST6 device has been designed to control medium power load, such as AC motors in
home appliances. Thanks to its thermal and turn off commutation performances, the ACST6
switch is able to drive an inductive load up to 6 A with no turn off additional snubber. It also
provides high thermal performances in static and transient modes such as the compressor
inrush current or high torque operating conditions of an AC motor. Thanks to its low gate
triggering current level, the ACST6 can be driven directly by an MCU through a simple gate
resistor as shown Figure 16 and Figure 17.
Figure 16. Compressor control – typical diagram
Compressor
Electronic
starter
Electronic
thermostat
ACST
Rg
ACST
Power supply
AC Mains
Gate
Driver
logical circuitry
1
2
3
PTC
Compressor with integrated e-starter
Compressor
Start
switch
Run
switch
PTC
Rg
ACST
Power supply
Gate
Driver
ACST
Rg
AC Mains
Compressor with external electronic drive
DocID7297 Rev 11 7/20
ACST6 Application information
20
Figure 17. Universal drum motor control – typical diagram
2.2 AC line transient voltage ruggedness
In comparison with standard Triacs, which are not robust against surge voltage, the ACST6
is self-protected against over-voltage, specified by the new parameter V
CL
. The ACST6
switch can safely withstand AC line transient voltages either by clamping the low energy
spikes, such as inductive spikes at switch off, or by switching to the on state (for less than
10 ms) to dissipate higher energy shocks through the load. This safety feature works even
with high turn-on current ramp up.
The test circuit of Figure 18 represents the ACST6 application, and is used to stress the
ACST switch according to the IEC 61000-4-5 standard conditions. With the additional effect
of the load which is limiting the current, the ACST switch withstands the voltage spikes up to
2 kV on top of the peak line voltage. The protection is based on an overvoltage crowbar
technology. The ACST6 folds back safely to the on state as shown in Figure 19. The ACST6
recovers its blocking voltage capability after the surge and the next zero current crossing.
Such a non repetitive test can be done at least 10 times on each AC line voltage polarity.
Universal motor
Motor direction
setting
Speed motor
regulation
Rg
AC Mains
Stator
MCU
Vcc
12V
ACST
Rotor
MCU
S2
Application information ACST6
8/20 DocID7297 Rev 11
Figure 18. Overvoltage ruggedness test circuit for resistive and inductive loads for
IEC 61000-4-5 standards
Figure 19. Typical current and voltage waveforms across the ACST6 during
IEC 61000-4-5 standard test
AC Mains
R
Filtering unit
Rg
Model of the load
Rgene
Surge generator
ACST6
2kV surge
L
R = 18 , L = 2 µH, Vsurge = 2 kV
Rg = 220
Ω
Ω
I
V
0
0
Vpeak =V
CL
1.2/50 µs voltage surge
8/20 µs current surge
Ipeak = 120 A
dI/dt = 150 A/µs
AC sw ch Triuqerinu uate current Package Delivery mode
DocID7297 Rev 11 9/20
ACST6 Ordering information scheme
20
3 Ordering information scheme
Figure 20. Ordering information scheme
ACS T 6 10 - 8 G TR
AC switch
Topology
On-state rms current
Repetitive peak off-state voltage
Package
T = Triac
6 = 6 A
8 = 800 V
FP = TO-220FPAB
T = TO-220AB
Triggering gate current
Delivery mode
10 = 10 mA
R = I²PAK
G = D²PAK
TR = Tape and reel
Blank = Tube
t: www.3t.ccm
Package information ACST6
10/20 DocID7297 Rev 11
4 Package information
Epoxy meets UL94, V0
Cooling method: by conduction (C)
Recommended torque value (TO220AB, TO220FPAB): 0.4 to 0.6 N·m
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK
®
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
is an ST trademark.
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DocID7297 Rev 11 11/20
ACST6 Package information
20
4.1 TO-220AB package information
Figure 21. TO-220AB package outline
(1)
Resin gate accepted in one of the two positions
or in the symmetrical opposites
Resin gate 0.5 mm max.
protrusion
(1)
Package information ACST6
12/20 DocID7297 Rev 11
Table 6. TO-220AB package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 4.4 4.6 0.1732 0.1811
b 0.61 0.88 0.024 0.0346
b1 1.14 1.55 0.0449 0.0610
c 0.48 0.7 0.0189 0.0276
D 15.25 15.75 0.6004 0.6201
D1 1.27 typ. 0.0500 typ.
E 10 10.4 0.3937 0.4094
e 2.4 2.7 0.0945 0.1063
e1 4.95 5.15 0.1949 0.2028
F 1.23 1.32 0.0484 0.052
H1 6.2 6.6 0.2441 0.2598
J1 2.4 2.72 0.0945 0.1071
L 13 14 0.5118 0.5512
L1 3.5 3.93 0.1378 0.1547
L20 16.40 typ. 0.6457 typ.
L30 28.90 typ. 1.1378 typ.
θP 3.75 3.85 0.1476 0.1516
Q 2.65 2.95 0.1043 0.1161
DocID7297 Rev 11 13/20
ACST6 Package information
20
4.2 TO-220FPAB package information
Figure 22. TO-220FPAB package outline
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Package information ACST6
14/20 DocID7297 Rev 11
Table 7. TO-220FPAB package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 4.40 4.60 0.1739 0.1818
B 2.50 2.70 0.0988 0.1067
D 2.50 2.750 0.0988 0.1087
E 0.45 0.70 0.0178 0.0277
F 0.75 1.0 0.0296 0.0395
F1 1.15 1.70 0.0455 0.0672
F2 1.15 1.70 0.0455 0.0672
G 4.95 5.20 0.1957 0.2055
G1 2.40 2.70 0.0949 0.1067
H 10.0 10.4 0.3953 0.4111
L2 16 Typ. 0.6324 Typ.
L3 28.6 30.6 1.1304 1.2095
L4 9.8 10.6 0.3874 0.4190
L5 2.9 3.6 0.1146 0.1423
L6 15.9 16.4 0.6285 0.6482
L7 9.00 9.30 0.3557 0.3676
Diam. 3.00 3.20 0.1186 0.1265
L7 A1 THERMAL PAD GAUGE PLANE
DocID7297 Rev 11 15/20
ACST6 Package information
20
4.3 D
2
PAK package information
Figure 23. D
2
PAK package outline
Package information ACST6
16/20 DocID7297 Rev 11
Figure 24. Footprint (dimensions in mm)
Table 8. D
2
PAK package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 4.40 4.60 0.1739 0.1818
A1 2.49 2.69 0.0984 0.1063
A2 0.03 0.23 0.0012 0.0091
B 0.70 0.93 0.0277 0.0368
B2 1.14 1.70 0.0451 0.0672
C 0.45 0.60 0.0178 0.0237
C2 1.23 1.36 0.0486 0.0538
D 8.95 9.35 0.3538 0.3696
E 10.00 10.40 0.3953 0.4111
G 4.88 5.28 0.1929 0.2087
L 15.00 15.85 0.5929 0.6265
L2 1.27 1.40 0.0502 0.0553
L3 1.40 1.75 0.0553 0.0692
M 2.40 3.20 0.0949 0.1265
R 0.40 typ. 0.0158 typ.
V2 0°
16.90
10.30
8.90 3.70
5.08
1.30
L3 Croppmg Dwechon C2
DocID7297 Rev 11 17/20
ACST6 Package information
20
4.4 I
2
PAK package information
Figure 25. I
2
PAK package outline
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Package information ACST6
18/20 DocID7297 Rev 11
Table 9. I
2
PAK package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Max. Min. Max.
A 4.4 4.6 0.1739 0.1818
A1 2.49 2.69 0.0984 0.1063
B 0.7 0.93 0.0277 0.0368
B2 1.14 1.7 0.0451 0.0672
C 0.45 0.6 0.0178 0.0237
C2 1.23 1.36 0.0486 0.0538
D 8.95 9.35 0.3538 0.3696
E 10 10.4 0.3953 0.4111
G 4.88 5.28 0.1929 0.2087
L 16.7 17.5 0.6601 0.6917
L2 1.27 1.4 0.0502 0.0553
L3 13.82 14.42 0.5462 0.5700
DocID7297 Rev 11 19/20
ACST6 Ordering information
20
5 Ordering information
6 Revision history
Table 11. Document revision history
Table 10. Ordering information
Order code Marking Package Weight Base Qty Packing mode
ACST610-8FP
ACST6108
TO-220FPAB 2.4 g 50 Tube
ACST610-8G D
2
PAK 1.5 g 50 Tube
ACST610-8GTR D
2
PAK 1.5 g 1000 Tape and reel
ACST610-8R I
2
PAK 2.3 g 50 Tube
ACST610-8T TO-220AB 1.5 g 50 Tube
Table 12.
Date Revision Changes
Jan-2002 7F Previous issue.
09-May-2005 8 Layout update. No content change.
18-Dec-2009 9 Document structure and parameter presentation revised for
consistency with other ACST documents. No technical changes.
Order codes updated.
01-Jul-2010 10 Updated Figure 20.
30-May-2017 11
Updated features in cover page and Table 2.
Updated Section 4: Package information.
Minor text changes.
ACST6
20/20 DocID7297 Rev 11
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